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Illicit and pharmaceutical drug consumption estimated via wastewater analysis. Part B: Placing back-calculations in a formal statistical framework.
e-Kitap

e-Kitap
Open Access
Kaynak :
Internet Archive Books
Dergi:
The Science of the Total Environment
Yayıncı:
The Science of the Total Environment
Yazar(lar) :
AE Ades , David R Baker , Nicky J Welton , Barbara Kasprzyk-Hordern , Matthew Hickman , Hayley E Jones
Yıl :
2014
The Science of the Total Environment
Tam Metin
Kaydet Alıntıla
This article is from The Science of the Total Environment, volume 487. Abstract Concentrations of metabolites of illicit drugs in sewage water can be measured with great accuracy and precision, thanks to the development of sensitive and robust analytical methods. Based on assumptions about factors including the excretion profile of the parent drug, routes of administration and the number of individuals using the wastewater system, the level of consumption of a drug can be estimated from such measured concentrations. When presenting results from these ‘back-calculations’, the multiple sources of uncertainty are often discussed, but are not usually explicitly taken into account in the estimation process. In this paper we demonstrate how these calculations can be placed in a more formal statistical framework by assuming a distribution for each parameter involved, based on a review of the evidence underpinning it. Using a Monte Carlo simulations approach, it is then straightforward to propagate uncertainty in each parameter through the back-calculations, producing a distribution for instead of a single estimate of daily or average consumption. This can be summarised for example by a median and credible interval. To demonstrate this approach, we estimate cocaine consumption in a large urban UK population, using measured concentrations of two of its metabolites, benzoylecgonine and norbenzoylecgonine. We also demonstrate a more sophisticated analysis, implemented within a Bayesian statistical framework using Markov chain Monte Carlo simulation. Our model allows the two metabolites to simultaneously inform estimates of daily cocaine consumption and explicitly allows for variability between days. After accounting for this variability, the resulting credible interval for average daily consumption is appropriately wider, representing additional uncertainty. We discuss possibilities for extensions to the model, and whether analysis of wastewater samples has potential to contribute to a prevalence model for illicit drug use.
DOI : doi:10.1016/j.scitotenv.2014.02.101
Cilt :487
ISSN :0048-9697
Sınıflandırma :
2
DESMOPLASTİK FİBROM: BİR OLGU SUNUMU
Bildiri Serisi

Bildiri Serisi
Kaynak :
DSpace Makaleler
Dergi:
SCIENCE OF THE TOTAL ENVIRONMENT
Yayıncı:
SCIENCE OF THE TOTAL ENVIRONMENT
Yazar(lar) :
İlknur Özcan , Beliz Güray , Hülya Çakır Karabaş
Konu :
Diş Hekimliği, Klinik Bilimler, Oral Diagnoz ve Radyoloji, DİŞ HEKİMLİĞİ, ORAL CERRAHİ VE TIP, Sağlık Bilimleri, Klinik Tıp, Klinik Tıp (MED)
Yıl :
2021
SCIENCE OF THE TOTAL ENVIRONMENT
Yayıncı Web Sitesi
Kaydet Alıntıla
Anahtar Kelimeler : Diş Hekimliği, Klinik Bilimler, Oral Diagnoz ve Radyoloji, DİŞ HEKİMLİĞİ, ORAL CERRAHİ VE TIP, Sağlık Bilimleri, Klinik Tıp, Klinik Tıp (MED), Bildiri
Sınıflandırma :
3
Antibacterial agents and heavy metal resistance in Gram-negative bacteria isolated from seawater, shrimp and sediment in Iskenderun Bay, Turkey
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Çukurova Üniversitesi
Yazar(lar) :
Matyar F. , Kaya A. , Dinçer S.
Konu :
Antibiotic resistance, Gram-negative bacteria, Heavy metal, Shrimp
Yıl :
2008
Science of the Total Environment
Yayıncı Web Sitesi
 Piri Tam Metin Bulucu
Kaydet Alıntıla
The aim of the present study was to determine the level of antibiotic resistance patterns and distribution of heavy metal resistance of bacterial isolates from seawater, sediment and shrimps, and to determine if there is a relationship between antibiotic and heavy metal resistance. We undertook studies in 2007 in the industrially polluted Iskenderun Bay, on the south coast of Turkey. The resistance of 236 Gram-negative bacterial isolates (49 from seawater, 90 from sediment and 97 from shrimp) to 16 different antibiotics, and to 5 heavy metals, was investigated by agar diffusion and agar dilution methods, respectively. A total of 31 species of bacteria were isolated: the most common strains isolated from all samples were Escherichia coli (11.4%), Aeromonas hydrophila (9.7%) and Stenotrophomonas maltophilia (9.3%). There was a high incidence of resistance to ampicillin (93.2%), streptomycin (90.2%) and cefazolin (81.3%), and a low incidence of resistance to imipenem (16.5%), meropenem (13.9%) and cefepime (8.0%). Some 56.8% of all bacteria isolated from seawater, sediment and shrimp were resistant to 7 or more antibiotics. Most isolates showed tolerance to different concentrations of heavy metals, and minimal inhibition concentrations ranged from 12.5 µg/ml to > 3200 µg/ml. The bacteria from seawater, sediment and shrimp showed high resistance to cadmium of 69.4%, 88.9%, and 81.1% respectively, and low resistance to manganese of 2%, 6.7% and 11.3% respectively. The seawater and sediment isolates which were metal resistant also showed a high resistance to three antibiotics: streptomycin, ampicillin and trimethoprim-sulphamethoxazole. In contrast, the shrimp isolates which were metal resistant were resistant to four antibiotics: cefazolin, nitrofurantoin, cefuroxime and ampicillin. Our results show that Iskenderun Bay has a significant proportion of antibiotic and heavy metal resistant Gram-negative bacteria, and these bacteria constitute a potential risk for public health. © 2008 Elsevier B.V. All rights reserved.
DOI : 10.1016/j.scitotenv.2008.08.014
Anahtar Kelimeler : Antibiotic resistance, Gram-negative bacteria, Heavy metal, Shrimp, article
Cilt: 407
Sayı: 1
ISSN: 0048-9697
Sınıflandırma :
4
TOF-SIMS study of Cs+ sorption on natural kaolinite
Dergi Makalesi

Dergi Makalesi
Open Access
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
T. Shahwan , H. N. Erten , L. Black , G. C. Allen
Konu :
Sorption, Kaolinite, Migration, Radionuclides, TOF-SIMS, Depth-profiling
Yıl :
1999
Science of the Total Environment
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
The sorption of Cs+ on natural kaolinite has been studied using time-of-flight secondary ion mass spectrometry (TOF-SIMS). Depth profiling up to 70 Å was performed to study the change in the amount of sorbed Cs+ as a function of depth in the kaolinite matrix. Quantitative determination of the amounts of primary cations in the kaolinite structure before and after sorption of Cs+ ions was carried out to identify which cations are possibly taking part in the sorption process. The experimental results showed that large amounts of Cs+ are sorbed onto the surface of kaolinite and that sorption decreases sharply over the first 10-Å depth. The fact that kaolinite surface was negatively charged under the operating pH indicates that physisorption has an important contribution to the sorption process. The results also showed that Na+, K+, Li+, Ca2+, Mg2+ and Fe3+ were involved in the sorption process with Cs+ and that the total decrease in the amounts of these cations is close to the amount of sorbed Cs+, suggesting that ion exchange is the dominant sorption mechanism. Copyright (C) 1999 Elsevier Science B.V. All rights reserved.
DOI : 10.1016/S0048-9697(98)00405-7
Anahtar Kelimeler : Sorption, Kaolinite, Migration, Radionuclides, TOF-SIMS, Depth-profiling, Article
Cilt: 226
Sayı: 2-3
ISSN: 0048-9697
Sayfa: 255-260
Sınıflandırma :
5
Engineered nanomaterials for plant growth and development: A perspective analysis
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science Of The Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
Sandeep Kumar Verma , Ashok Kumar Das , Manoj Kumar Patel , Ashish Shah , Vinay Kumar , Saikat Gantait
Konu :
Cytotoxicity, Growth response, Nanopartide uptake, Phytonanotechnology, Translocation
Yıl :
2018
Science Of The Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
With the overwhelmingly rapid advancement in the field of nanotechnology, the engineered nanomaterials (ENMs) have been extensively used in various areas of the plant system including quality improvement, growth and nutritional value enhancement, gene preservation etc. There are several recent reports on the ENMs influence on growth enhancements, growth inhibition as well as certain toxic impacts on plant. However, translocation, growth responses and stress modulation mechanisms of ENMs in the plant systems call for better and indepth understanding. Herein, we are presenting a comprehensive and critical account of different types of ENMs, their applications and their positive, negative and null impacts on physiological and molecular aspects of plant growth, development and stress responses. Recent reports revealed mixed effects on plants, ranging from enhanced crop yield, epiigenetic alterations, and phytotoxicity, resulting from the ENMs' exposure, Creditable research in recent years has revealed that the effects of ENMs on plants are species specific and are variable among plant species. ENM exposures are reported to trigger free radical formation, responsive scavenging, and antioxidant armories in the exposed plants. The ENMs are also reported to induce aberrant expressions of microRNAs, the key post-transcriptional regulators of plant growth, development and stress-responses of plants. However, these modulations, if judiciously done, may lead to improved plant growth and yield. A better understanding of the interactions between ENMs and plant responses, including their uptake transport, internalization, and activity, could revolutionize crop production through increased disease resistance, nutrient utilization, and crop yield. Therefore, in this review, we are presenting actitical account of the different selected ENMs, their uptake by the plants, their positive/negative impacts on plant growth and development, along with the resultant ENM-responsive post-transcriptional modifications, especially, aberrant m1RNA expressions. In addition, underlying mechanisms of various ENM-plant cell interactions have been discussed. (C) 2018 Published by Elsevier B.V.
Anahtar Kelimeler : Cytotoxicity, Growth response, Nanopartide uptake, Phytonanotechnology, Translocation, article
Cilt: 630
ISSN: 0048-9697
Sınıflandırma :
6
Source apportionment of biogenic and anthropogenic VOCs in Bolu plateau
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science Of The Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
Melike Dorter , Mustafa Odabasi , Serpil Yenisoy-Karakas
Konu :
VOCs, Passive sampling, Spatial distribution, Seasonal variation, Positive matrix factorization (PMF)
Yıl :
2020
Science Of The Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
Total of 69 volatile organic compounds (VOCs) including both biogenic (isoprene, monoterpenes and oxygenated compounds) and anthropogenic ones were investigated in Bolu plateau by passive sampling technique. The main objective of this study was to determine spatial distributions, seasonal variations and possible sources for a wide variety of VOCs. Two-week passive sampling campaigns were performed in the winter and summer of 2017. Anthropogenic VOCs were predominant with a high percentage of contribution, 91% and 69% for winter and summer, respectively. Relatively higher concentrations of biogenic VOCs during the summer campaign were found to be related to higher solar intensity, temperature and amount of broad-leaved tree species. Benzaldehyde, toluene, phenol, benzene, hexane, decanal, benzothiazole, dodecane and acetophenone were anthropogenic VOCs with higher concentrations. Among biogenic VOCs, hexanal, alpha-pinene and limonene were found to be in higher concentrations. Spatial distribution maps were drawn for each VOC. Elevated concentrations of VOCs around the city center and major roads indicate that emissions from domestic heating activities and vehicular emissions can be significant sources of VOCs. The results were also supported by Positive Matrix Factorization (PMF) analyses and G-score distribution maps. Solvent evaporation, wood-coal combustion, biogenic emissions (pine, grain, grass), city atmosphere (styrene emissions from plastic production), biogenic (hornbeam, pine, juniper) and vehicle emissions were the identified as the primary VOC sources in Bolu plateau, contributing 31%, 22%, 8.0%, 8.0%, 13%, and 18%, respectively to the total VOC concentrations. (c) 2020 Elsevier B.V. All rights reserved.
Anahtar Kelimeler : VOCs, Passive sampling, Spatial distribution, Seasonal variation, Positive matrix factorization (PMF), article
Cilt: 731
ISSN: 0048-9697
Sınıflandırma :
7
Sorption
Dergi Makalesi

Dergi Makalesi
Open Access
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
H. N. Erten , S. Aksoyoglu , H. Göktürk
Yıl :
1988
Science of the Total Environment
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
The sorption desorption behaviour of Cs ion in the concentration region of 10−8 to 10−4 meqml−1 have been studied using clay and soil fractions from various regions of Turkey. The sorption curves for all the material studied show similar behaviour indicating at least two different sorption processes. One with high and the other with low distribution coefficients. The results of desorption studies indicate that Cs cation is to a large extent attached to the solid material in a reversible manner. The adsorption isotherms were found to be nonlinear in all cases. The increase og RD values with decreasing particle size in most cases, suggests that sorption and or exchange is primarily a surface phenomenon in the clay and soil fractions studied.
DOI : 10.1016/0048-9697(88)90348-8
Anahtar Kelimeler : Article
Cilt: 69
ISSN: 0048-9697 (print)
Sayfa: 269-296
Sınıflandırma :
8
Investigation of spatial and historical variations of air pollution around an industrial region using trace and macro elements in tree components
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
SCIENCE OF THE TOTAL ENVIRONMENT
Yayıncı:
SCIENCE OF THE TOTAL ENVIRONMENT
Yazar(lar) :
YETKİN DUMANOĞLU , Doganay Tolunay , HASAN ALTIOK , ABDURRAHMAN BAYRAM , TOLGA ELBİR , MUSTAFA ODABAŞI , Mehl Kara , Ezgi Ozgunerge Falay , Gizem Tuna
Konu :
Çevre Mühendisliği, Mühendislik ve Teknoloji, Tarımsal Bilimler, Tarım ve Çevre Bilimleri (AGE), Çevre / Ekoloji, ÇEVRE BİLİMLERİ
Yıl :
2021
SCIENCE OF THE TOTAL ENVIRONMENT
Yayıncı Web Sitesi
Kaydet Alıntıla
Several trace and macro elements (n = 48) were measured in pine needle, branch, bark, tree ring, litter, and soil samples collected at 27 sites (21 industrial, 6 background) to investigate their spatial and historical variation in Aliaga industrial region in Turkey. Concentrations generally decreased with distance from the sources and the lowest ones were measured at background sites far from major sources. Spatial distribution of anthropogenic trace elements indicated that their major sources in the region are the iron-steel plants, ship-breaking activities and the petroleum refinery. Patterns of 40 elements that were detected in most of the samples were also evaluated to assess their suitability for investigation of historical variations. Observed increasing trends of several trace and macro elements (As, Cr, Fe, Mo, Ni, V, Cu, Pb, Sb, Sn, and Hg) in the tree-ring samples were representative for the variations in anthropogenic emissions and resulting atmospheric concentrations in Aliaga region. It was shown that lanthanides (La, Ce, Pr, Nd, Sm, Gd, Dy, Er, Yb) could also be used for the investigation of historical variations clue to specific industrial emissions (i.e., petroleum refining). Results of the present study showed that tree components, litter, and soil could be used to determine the spatial variations of atmospheric pollution in a region while tree rings could be used to assess the historical variations. (C) 2016 Elsevier B.V. All lights reserved.
Anahtar Kelimeler : Çevre Mühendisliği, Mühendislik ve Teknoloji, Tarımsal Bilimler, Tarım ve Çevre Bilimleri (AGE), Çevre / Ekoloji, ÇEVRE BİLİMLERİ, Makale

ISSN: 0048-9697
Sınıflandırma :
9
Micro-organic pollutants and biological response of mussels in marinas and ship building/breaking yards in Turkey
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
ELSEVIER
Yazar(lar) :
O. S. Okay , B. Karacık , A. Güngördü , M. Özmen , A. Yılmaz , N. C. Koyunbaba , S. D. Yakan , V. Korkmaz
Konu :
Marina, Ship buildingbreaking yards, Micro-organic pollutants, Sediments, Mussels, Enzyme assays
Yıl :
2014
Science of the Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
Concentrations of PAHs, PCBs and OCPs in sediments and mussels (caged and/or native) were determined at 16 stations in six major sites of coastal Turkey. The biological effects of pollution were evaluated using sediment toxicity tests and enzyme activity assays. EROD, PROD, GST, AChE, CaE, and GR activities were evaluated using the digestive glands of mussels. The total PAH concentrations in the sediments varied between nd and 79,674 ng g−1 dw, while the total OCP concentrations were in the range of nd to 53.7 ng g−1 dw. The total PAH concentrations in mussels varied between 22.3 and 37.4 ng g−1 ww. The average concentrations of total PCBs in mussels were 2795 pg g−1 ww in the shipyard, 797 pg g−1 ww in Marina 2 and 53 pg g−1 ww in Marina 1 stations. The results of whole-sediment toxicity tests showed a strong correlation between toxicity test results and pollutant concentrations. Selected cytosolic enzyme activities in digestive glands differed significantly depending on localities. These differences in enzyme activities were mainly related to the different pollutant levels of the sampling sites. The micro-organic contaminant profile patterns, toxicity tests and biomarker studies showed that shipyards and shipbreaking yards are the major potential sources of organic pollution in coastal
areas.
Anahtar Kelimeler : Marina, Ship buildingbreaking yards, Micro-organic pollutants, Sediments, Mussels, Enzyme assays, article

Sayı: 496
Sınıflandırma :
Çevre %100
Kirlilik %83
10
Ağrı Baş-Boyun ve Orofasiyal Ağrılar
e-Kitap

e-Kitap
Kaynak :
DSpace Makaleler
Dergi:
SCIENCE OF THE TOTAL ENVIRONMENT
Yayıncı:
SCIENCE OF THE TOTAL ENVIRONMENT
Yazar(lar) :
İLKNUR ÖZCAN
Konu :
Sağlık Bilimleri, Tıp, Klinik Tıp (MED)
Yıl :
2021
SCIENCE OF THE TOTAL ENVIRONMENT
Yayıncı Web Sitesi
Kaydet Alıntıla
Anahtar Kelimeler : Sağlık Bilimleri, Tıp, Klinik Tıp (MED), Kitap
Sınıflandırma :
Biyotıp %100
11
Corporate carbon footprint for country Climate Change mitigation: A case study of a tannery in Turkey
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Elsevier Science Bv
Yazar(lar) :
Kilic Eylem , Puig Rita , Zengin Gokhan , Zengin Candas Adiguzel , Fullana-i-Palmer Pere
Konu :
Sustainable production, Greenhouse gases (GHG) emissions, Turkish leather industry, Electricity mix, Waste recycling
Yıl :
2018
Science of the Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
Assessment of carbon emissions and environmental impact of production is indispensable to achieve a sustainable industrial production in Turkey, especially for those companies willing to compete in new international green markets. In this case study, corporate carbon footprint of a representative Turkish tanning company was analyzed. Inventory and impact data are presented to help in the environmental decision-making process. The results indicate that significant environmental impacts were caused during the landfilling of solid wastes as well as the production of the electricity and fuel required in the tannery. Turkish tannery inventory data presented here for the first time will be useful for leather tanning company managers to calculate sustainability key indicators. Improving alternatives at country level were identified (increasing the renewable sources on electricity production and promote energy recovery in landfills) which would be useful not only to decrease greenhouse gas (GHG) emissions of tanning sector but also of other industries requiring electricity and producing organic wastes. Considering the substantial contribution of industrial processes to the Turkish carbon emissions (15.7%) (TUIK, 2013), work done on those areas would provide a sound improvement in environmental profile of Turkey. The importance to promote a national strategy to reduce GHG emissions in Turkey was discussed here, as well as its relation to corporate carbon footprint assessments. One of the significant points revealed from the case study is the lack of published country specific emission factors for Turkey, which is a fundamental prerequisite to promote corporate carbon footprint assessment within the country. (C) 2018 Elsevier B.V. All rights reserved.
Anahtar Kelimeler : Sustainable production, Greenhouse gases (GHG) emissions, Turkish leather industry, Electricity mix, Waste recycling, article
Cilt: 635
ISSN: 0048-9697
Sınıflandırma :
12
Leaching of arsenic from glazed and nonglazed potteries into foods
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Elsevier B.V.
Yazar(lar) :
Çiftçi T.D. , Henden E.
Konu :
Arsenic, Foods, Leaching, Pottery
Yıl :
2016
Science of the Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
Potteries are traditionally used for cooking and storing foods in Turkey, the Mediterranean, and Middle East regions. Leaching of inorganic arsenic into the traditional white bean dish cooked in pottery has been determined for the first time in the literature. Accuracy of this method was validated by the analysis of a certified reference material, commercially marketed standard solutions, and arsenic spiked solutions. Locally available potteries were examined for the leaching studies. Variation in the leachability of inorganic arsenic from the potteries by acetic acid versus the number of use was studied. The concentrations of arsenic leached by 4% acetic acid decreased by the usage number. The glazed potteries released arsenic at lower concentrations to leaching by acetic acid than the same group of nonglazed potteries. The concentrations of leached arsenic were relatively high in the white bean dish, where the leach of arsenic from the potteries to acetic acid was low. All of the potteries examined released inorganic arsenic to white bean dish in concentrations that exceed the daily BMDL0.5 (210 µg/day). However, because the potteries are used only about once a month, direct application of the daily dietary intake limits is not appropriate. According to the weekly BMDL0.5, the estimated contribution from arsenic was in the range of 34–79% of BMDL0.5. The results of this study showed that the potteries are the potential sources of arsenic. Pottery oiling in ovens, which is another traditional procedure before using the potteries, reduced the leaching of arsenic to foods. © 2016 Elsevier B.V.
Anahtar Kelimeler : Arsenic, Foods, Leaching, Pottery, article
Cilt: 569-570
ISSN: 0048-9697
Sınıflandırma :
13
A global-scale screening of non-native aquatic organisms to identify potentially invasive species under current and future climate conditions
Dergi Makalesi

Dergi Makalesi
Open Access
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Elsevier B.V.
Yazar(lar) :
Lorenzo Vilizzi , Gordon H. Copp , Jeffrey E. Hill , Halit Filiz , Nurçin Killi , Şerife Gülsün Kırankaya
Konu :
Decision support tools, AS-ISK, Hazard identification, Non-native species, Risk analysis, Climate change
Yıl :
2021
Science of the Total Environment
Yayıncı Web Sitesi
Tam Metin
Kaydet Alıntıla
The threat posed by invasive non-native species worldwide requires a global approach to identify which introduced species are likely to pose an elevated risk of impact to native species and ecosystems. To inform policy, stakeholders and management decisions on global threats to aquatic ecosystems, 195 assessors representing 120 risk assessment areas across all six inhabited continents screened 819 non-native species from 15 groups of aquatic organisms (freshwater, brackish, marine plants and animals) using the Aquatic Species Invasiveness Screening Kit. This multi-lingual decision-support tool for the risk screening of aquatic organisms provides assessors with risk scores for a species under current and future climate change conditions that, following a statistically based calibration, permits the accurate classification of species into high-, medium- and low-risk categories under current and predicted climate conditions. The 1730 screenings undertaken encompassed wide geographical areas (regions, political entities, parts thereof, water bodies, river basins, lake drainage basins, and marine regions), which permitted thresholds to be identified for almost all aquatic organismal groups screened as well as for tropical, temperate and continental climate classes, and for tropical and temperate marine ecoregions. In total, 33 species were identified as posing a ‘very high risk’ of being or becoming invasive, and the scores of several of these species under current climate increased under future climate conditions, primarily due to their wide thermal tolerances. The risk thresholds determined for taxonomic groups and climate zones provide a basis against which area-specific or climate-based calibrated thresholds may be interpreted. In turn, the risk rankings help decision-makers identify which species require an immediate ‘rapid’ management action (e.g. eradication, control) to avoid or mitigate adverse impacts, which require a full risk assessment, and which are to be restricted or banned with regard to importation and/or sale as ornamental or aquarium/fishery enhancement.
DOI : 10.1016/j.scitotenv.2021.147868
Anahtar Kelimeler : Decision support tools, AS-ISK, Hazard identification, Non-native species, Risk analysis, Climate change, article
Cilt: 788
ISSN: 00489697
Sınıflandırma :
Çevre %44
Ekoloji %51
14
Prolific pioneers and reserved settlers. Changes in the life-history of the western tubenose goby (Proterorhinus semilunaris) at different invasion stages
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Elsevier B.V.
Yazar(lar) :
Joanna Grabowska , Ali Serhan Tarkan , Dagmara Blonska , Nil Top Karakuş , Bartosz Janic , Mirosław Przybylski
Konu :
Condition, Growth, Non-indigenous species, Ponto-Caspian, Reproduction
Yıl :
2021
Science of the Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
The western tubenose goby is one of the most wide-spread invasive fish species in European freshwaters, though information of its life-history in relation to its invasion success is limited. We compared the reproductive traits, growth rate and condition of three populations that differed in their stage of invasion in its expanding range in the River Vistula: core - the oldest population established at the centre of the invasive range; intermediate - long established by downstream dispersal from the core area but continuously supplemented by drifting specimens; front - new population at the edge of the invasive range, upstream from the core area. Pronounced differences in life-history traits were found between the ‘core’ and the ‘front’ populations. The ‘front’ population displayed high investment in reproduction and had heavier gonads, higher fecundity, higher batch fecundity though smaller eggs than the ‘core’ population. The ‘core’ population was characterized by the lowest fecundity, the largest eggs, the highest condition after spawning, and the highest maximum age of males. The ‘intermediate’ population was intermediate between the ‘front’ and the ‘core’ populations regarding reproductive traits, but showed the highest growth rates. The life-history traits that varied most among populations were gonad weight, fecundity, gonado-somatic index, condition and growth in the first years of life. Inter-individual variability of life-history traits was lower in the front of the invasive range than in the core and intermediate area. The observed plasticity in life-history appears to favour production of large numbers of offspring in newly-colonised areas in the initial stages of invasion and at the edge of the expanding range. In longer-established populations, at the core of invasive range, a strategy for greater competitiveness under intra-specific competition appears to be favoured. © 2020 Elsevier B.V.
Anahtar Kelimeler : Condition, Growth, Non-indigenous species, Ponto-Caspian, Reproduction, article
Cilt: 750
ISSN: 0048-9697
Sınıflandırma :
15
Evaluating the impact of climate change on groundwater resources in a small Mediterranean watershed
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science Of The Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
Ali Erturk , Alpaslan Ekdal , Melike Gurel , Nusret Karakaya , Cigdem Guzel , Ethem Gonenc
Konu :
Koycegiz-Dalyan Watershed, Groundwater dependent ecosystems, Regional climate models, SWAT, Hydrological modeling
Yıl :
2014
Science Of The Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
Western Mediterranean Region of Turkey is subject to considerable impacts of climate change that may adversely affect the water resources. Decrease in annual precipitation and winter precipitation as well as increase in temperatures are observed since 1960s. In this study, the impact of climate change on groundwater resources in part of Koycegiz-Dalyan Watershed was evaluated. Evaluation was done by quantifying the impacts of climate change on the water budget components. Hydrological modeling was conducted with SWAT model which was calibrated and validated successfully. Climate change and land use scenarios were used to calculate the present and future climate change impacts on water budgets. According to the simulation results, almost all water budget components have decreased. SWAT was able to allocate less irrigation water because of the decrease of overall water due to the climate change. This resulted in an increase of water stressed days and temperature stressed days whereas crop yields have decreased according to the simulation results. The results indicated that lack of water is expected to be a problem in the future. In this manner, investigations on switching to more efficient irrigation methods and to crops with less water consumption are recommended as adaptation measures to climate change impacts. (C) 2014 Elsevier B.V. All rights reserved.
Anahtar Kelimeler : Koycegiz-Dalyan Watershed, Groundwater dependent ecosystems, Regional climate models, SWAT, Hydrological modeling, article
Cilt: 499
ISSN: 0048-9697
Sınıflandırma :
16
Determination of real-world emission factors of trace metals, EC, OC, BTEX, and semivolatile organic compounds (PAHs, PCBs and PCNs) in a rural tunnel in Bilecik, Turkey
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science Of The Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
Eftade O. Gaga , Akif Ari , Nesimi Akyol , Ozlem Ozden Uzmez , Melik Kara , Judith C. Chow , John G. Watson
Konu :
Emission factors, Tunnel, PAHs, PCBs, PCNs, EC, OC, Trace elements
Yıl :
2018
Science Of The Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
A field study was performed in a rural tunnel to determine pollutant concentrations, sources and on road vehicle emission factors (EFs) of particulate matter, trace metals, elemental carbon (EC), organic carbon (OC), benzene, toluene, ethyl benzene and xylenes (BTEX), and polycyclic aromatic hydrocarbons (PAHs). Emission factors (EFs) for polychlorinated naphthalenes (PCNs) and polychlorinated biphenyls (PCBs) were also determined. A 12-day extensive sampling campaign during morning and afternoon periods at inlet and exit stations of the tunnel was conducted. Morphology of the particles was also investigated by Scanning Electron Microcopy (SEM). Correlation analysis, factor analysis and diagnostic PAH ratios were utilized to identify emission sources of trace metals. Identified sources include brake wear (33%), resuspension of road dust (15%), tyre wear (12%), exhaust emissions (10%), and lubricants (9%). Based on the PAH diagnostic ratios, major sources of PAHs were estimated as diesel emissions. EFs were comparable with the literature and varied from 31.5 to 295.4 mg vehicle(-1) km(-1) with an average of 129.2 +/- 80 mg vehicle(-1) km(-1) for PM2.5. PM2.5-10 EFs varied between 15.9 and 236.1 mg vehicle(-1) km(-1) with an average of 96 +/- 30 mg vehicle(-1) km(-1). Average EC EFs were 40.3 +/- 9.8 mg vehicle(-1) km(-1) for PM2.5 samples and 19.5 +/- 0.5 mg vehicle(-1) km(-1) for PM2.5-10 samples while OC EFs were 33.7 +/- 18 and 15.5 +/- 8.4 mg vehicle(-1) km(-1) for fine and coarse particles, respectively. EFs of elements were generally 2 (Al) to 59 (Mg) times higher than those previously reported in the literature. Compared to literature, relatively higher EFs for Sigma(13)PAHs (range: 48.1-168 mu g vehicle(-1) km(-1), average: 84.3 +/- 46.4 mu g vehicle(-1) km(-1)) were obtained. BTEX emission factors were in the range of 4.2 +/- 4.7 mg vehicle(-1) km(-1) (m + p-xylene) and 16.7 +/- 10.5 mg vehicle(-1) km(-1) (toluene). Average EFs for Sigma PCBs and Sigma PCNs were 12.06 +/- 5.3 mu g vehicle(-1) km(-1) and 88.9 +/- 70.4 ng vehicle(-1) km(-1), respectively. (C) 2018 Elsevier B.V. All rights reserved.
Anahtar Kelimeler : Emission factors, Tunnel, PAHs, PCBs, PCNs, EC, OC, Trace elements, article
Cilt: 643
ISSN: 0048-9697
Sınıflandırma :
17
The spread of COVID-19 virus through population density and wind in Turkey cities
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science Of The Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
Hamit Coskun , Nazmiye Yildirim , Samettin Gunduz
Konu :
COVID-19 virus, Respiratory transmission, Climate, Wind speed, Population density
Yıl :
2021
Science Of The Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
Beyond the contact and respiratory transmission of the COVID-19 virus, it has recently been reported in the literature that humidity, temperature, and air pollution may be effective in spreading the virus. However, taking the measurements regionally suspects the accuracy or validity of the data. In this research, climate values (temperature, humidity, number of sunny days, wind intensity) of 81 provinces in Turkey were collected in March 2020. Also, the population, population density of the provinces, and average air pollution data were taken. The findings of the study showed that population density and wind were effective in spreading the virus and both factors explained for 94% of the variance in virus spreading. Air temperature, humidity, the number of sunny days, and air pollution did not affect the number of cases. Besides, population density mediated the effect of wind speed (9%) on the number of COVID-19 cases. The finding that COVID-19 virus, invisible in the air, spreads more in windy weather indicates that the virus in the air is one threatening factor for humans with the wind speed that increases air circulation. (C) 2020 Elsevier B.V. All rights reserved.
Anahtar Kelimeler : COVID-19 virus, Respiratory transmission, Climate, Wind speed, Population density, article
Cilt: 751
ISSN: 0048-9697
Sınıflandırma :
18
Toxicological effect of indole and its azo dye derivatives on some microorganisms under aerobic conditions
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Niğde Ömer Halisdemir Üniversitesi
Yazar(lar) :
Niğde Ömer Halisdemir Üniversitesi
Konu :
Azoindole, Indole, Microorganism, Toxicological effect
Yıl :
2006
Science of the Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
Azo dyes are ubiquitous commercial chemicals that present unique environmental problems. The azo dyes in particular can undergo natural anaerobic degradation to potentially carcinogenic amines. They pose a major problem for water-treatment plants downstream. One strategy to remidate polluted surface contaminants is to make use of the degradative capacity of bacteria rather than using destructive chemical reactions. Therefore, pathogenic and non-pathogenic microorganisms namely; Bacillus thuringiensis, Bacillus subtilis, Bacillus megaterium, Proteus vulgaris, Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli and Saccharomyces cerevisiae have been chosen and the toxicological effect of indole and its azo dye methyl derivatives on these microorganisms was studied under aerobic conditions. While these compounds have showed remarkable activity against B. megaterium, B. subtilis, B. thuringiensis and S. aureus, they did not exhibit any activity against P. vulgaris. However, indole acted as an inhibitor on all of these compounds specially the Gram negative bacterium P. aeruginosa. © 2005 Elsevier B.V. All rights reserved.
Anahtar Kelimeler : Azoindole, Indole, Microorganism, Toxicological effect, article
Cilt: 358
Sayı: 1.Mar
ISSN: 0048-9697
Sınıflandırma :
Kimya %99
Enzimoloji %100
19
Mercury levels in cord blood and meconium of healthy newborns and venous blood of their mothers: Clinical, prospective cohort study
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science Of The Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
Emin Unuvar , Hasan Ahmadov , Ali Riza Kiziler , Birsen Aydemir , Sadik Toprak , Volkan Ulker , Cemal Ark
Konu :
child, meconium, mercury, mother, newborn
Yıl :
2007
Science Of The Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
Objectives: The purpose of this study is to investigate the chronic mercury intoxication in pregnant women and newborns living in Istanbul, Turkey. Methods: The research was carried out as a prospective with 143 pregnant women and their newborns. Venous blood from the mother, cord blood from the neonate, and meconiurn were collected for mercury analysis. Frequency of fish and vegetable-eating and the number of teeth filled were investigated. Analyses were made in cold vapor Atomic Absorption Spectrophotometer (AAS, mu g/L). Results: Mercury levels were 0.38 +/- 0.5 mu g/L (0-2.34) in venous blood of pregnant women, 0.50 +/- 0.64 mu g/L (0-2.36) in umbilical cord blood and 9.45 +/- 13.8 mu g/g (0-66.5) in mcconium. Maternal blood mercury level was lower than the known toxic limit for humans (EPA, 5 mu g/L). Mercury levels of the maternal venous blood were significantly correlated with umbilical cord blood. The primary risk factors affecting mercury levels were eating fishmeals more than twice a week and having filled teeth more than five. The fact that the mother had a regular vegetable diet everyday reduced the mercury levels. Increased levels of mercury in the mother and umbilical cord blood could lead to retarded newborns' weight and height. Conclusion: Pregnant women living in Istanbul may be not under the risk of chronic mercury intoxication. Fish consumption more than twice per week and tooth-filling of mother more than five may increase mercury level. On the contrary, regular diet rich in vegetable decreases the mercury level. (c) 2006 Elsevier B.V All rights reserved.
Anahtar Kelimeler : child, meconium, mercury, mother, newborn, article
Cilt: 374
Sayı: 1
ISSN: 0048-9697
Sınıflandırma :
20
Heavy metal and arsenic concentrations in rainbow trout (Oncorhynchus mykiss) farmed in a dam reservoir on the Firat (Euphrates) River: Risk-based consumption advisories
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of The Total Environment
Yayıncı:
Munzur Üniversitesi
Yazar(lar) :
Memet Varl , Gülderen Kurt Kaya , Alper Alp
Konu :
Metals, Farmed rainbow trout, Human health risk assessment, Consumption limits, Biomagnification factor
Yıl :
2017
Science of The Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
The concentrations of ten metals in rainbow trout (Oncorhynchus mykiss) farmed in the Karakaya Dam Reservoir (Turkey) on the Firat River were determined. The metal concentrations in rainbow trout did not exceed the maximum permissible levels. Biomagnification factors (BMF) of ten metals were <1, indicating that these metals were not biomagnified. The estimated daily intake (EDI) of each metal was much lower than the respective tolerable daily intake (TDI). The target hazard quotient (THQ) for individual metal and total THQ for combined metals were lower than 1, indicating no health risk for consumers due to the intake of either individual metal or combined metals. The cancer risk (CR) value for toxic inorganic As was below 10-6, indicating no carcinogenic risk. According to the calculated maximum allowable consumption rates (CR.), an adult may safely consume 28 meals of rainbow trout from the dam reservoir per month with no adverse carcinogenic and non carcinogenic health effects. According to these results, the consumption of rainbow trout farmed in this dam reservoir is completely safe for human health.
Anahtar Kelimeler : Metals, Farmed rainbow trout, Human health risk assessment, Consumption limits, Biomagnification factor, article
Cilt: 599-600
21
Effects of Zn and ZnO nanoparticles on artemia salina and daphnia magna Organisms: toxicity, accumulation and elimination
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
Durali Danabaş , Mehmet Ateş , Burcu Ertit Taştan , Işıl Canan Çiçek Çimen , İlkay Ünal , Önder Aksu , Banu Kutlu
Konu :
Zn, ZnO Nanoparticles, Toxicity, Accumulation, Artemia Salina
Yıl :
2020
Science of the Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
In the study, Zn in the size of 40–60 nm and 80–100 nm and ZnO in the size of 10–30 nm were applied to A. salina and D. magna individuals in 7 groups with 3 repetitions. Measurements were made at 24th, 48th and 72nd hours and elimination values were examined at +24 h. LC50 values of NPs were determined and chemical analysis (metal accumulation and elimination), ion quantities which were given to the environment and the survival rates of organisms were determined after the exposure. According to the results of phase contrast microscopy, it was found that both experimental organisms absorbed the NPs in the medium level. In the toxicity results of D. magna, it can be said that Zn NP (40–60 nm) has a highly toxic effect only at 50 ppm concentration for 48 h and lethal dose can be accepted as of 5 ppm at the end of 72 h. In A. salina individuals, it is clearly seen that there is an increase in mortality in organisms parallel to the dose increase. Although all NPs were applied to organisms in low doses corresponding to environmental values, it was observed that toxic effect was in parallel with the increase in time. It is clearly known that there is the inverse proportion between the size of NPs and the toxic effect. The smaller the size of NPs is, the higher the toxic effect becomes When the results of Zn accumulation and elimination of A. salina and D. magna individuals exposed to the Zn and ZnO NPs were examined; it was found that accumulation and elimination occurred in parallel with the increase in concentration at each application hour and elimination. Intensive and possible misuse of nanoscale materials is one of the biggest threats to the environment and all living things worldwide.
Anahtar Kelimeler : Zn and ZnO Nanoparticles, Toxicity, Accumulation, Artemia Salina, article
Cilt: 711
ISSN: 0048-9697
Sınıflandırma :
22
Resolving the effects of environmental micro- and nanoplastics exposure in biota: A knowledge gap analysis
Araştırma Makalesi

Araştırma Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Elsevier B.V.
Yazar(lar) :
Ege Universitesi
Konu :
Dysmetabolic, Microparticle, Nanoparticle, Polymer, Stress, Toxicity
Yıl :
2021
Science of the Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
The pervasive spread of microplastics (MPs) and nanoplastics (NPs) has raised significant concerns on their toxicity in both aquatic and terrestrial environments. These polymer-based materials have implications for plants, wildlife and human health, threatening food chain integrity and ultimate ecosystem resilience. An extensive – and growing – body of literature is available on MP- and NP-associated effects, including in a number of aquatic biota, with as yet limited reports in terrestrial environments. Effects range from no detectable, or very low level, biological effects to more severe outcomes such as (but not limited to) increased mortality rates, altered immune and inflammatory responses, oxidative stress, genetic damage and dysmetabolic changes. A well-established exposure route to MPs and NPs involves ingestion with subsequent incorporation into tissues. MP and NP exposures have also been found to lead to genetic damage, including effects related to mitotic anomalies, or to transmissible damage from sperm cells to their offspring, especially in echinoderms. Effects on the proteome, transcriptome and metabolome warrant ad hoc investigations as these integrated “omics” workflows could provide greater insight into molecular pathways of effect. Given their different physical structures, chemical identity and presumably different modes of action, exposure to different types of MPs and NPs may result in different biological effects in biota, thus comparative investigations of different MPs and NPs are required to ascertain the respective effects. Furthermore, research on MP and NP should also consider their ability to act as vectors for other toxicants, and possible outcomes of exposure may even include effects at the community level, thus requiring investigations in mesocosm models. © 2021 Elsevier B.V.
Anahtar Kelimeler : Dysmetabolic, Microparticle, Nanoparticle, Polymer, Stress, Toxicity, review
Cilt: 780
ISSN: 0048-9697
Sınıflandırma :
Çevre %95
Çevre %73
23
Nerium oleander L. as a biomonitor of lead and other heavy metal pollution in Mediterranean environments
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Ege Universitesi
Yazar(lar) :
Aksoy A. , Öztürk M.A.
Konu :
Heavy metal pollution, Mediterranean environment, Oleander, Turkey
Yıl :
1997
Science of the Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
The leaves of Nerium oleander L. (oleander) were tested as a possible biomonitor of heavy metal pollution studied in Antalya along the Mediterranean Sea, Turkey. Fifty-three sites (urban roadside, urban, urban park, suburban andrural) in and around Antalya city were investigated. The concentration of Pb, Cd, Zn and Cu were determined in unwashed and washed leaves and soils. Differences between the unwashed and washed samples varied according to the metal pollutant. Significant correlations were obtained between the heavy metal concentrations in surface soil and washed leaf samples. Nerium oleander was found to be a useful biomonitor of the determined heavy metals.
Anahtar Kelimeler : Heavy metal pollution, Mediterranean environment, Oleander, Turkey, article
Cilt: 205
Sayı: 02.Mar
ISSN: 0048-9697
Sınıflandırma :
24
Lead (II) removal from natural soils by enhanced electrokinetic remediation
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
SCIENCE OF THE TOTAL ENVIRONMENT
Yayıncı:
ELSEVIER SCIENCE BV
Yazar(lar) :
Ahmet Altın , Mustafa Değirmenci
Konu :
electrokinetic remediation, lead (II), calcite, gypsum, dolomite, clinoptilolite
Yıl :
2005
SCIENCE OF THE TOTAL ENVIRONMENT
Yayıncı Web Sitesi
 Piri Tam Metin Bulucu
Kaydet Alıntıla
Electrokinetic remediation is a very effective method to remove metal from fine-grained soils having low adsorption and buffering capacity. However, remediation of soil having high alkali and adsorption capacity via the electrokinetic method is a very difficult process. Therefore, enhancement techniques are required for use in these soil types. In this study, the effect of the presence of minerals having high alkali and cation exchange capacity in natural soil polluted with lead (II) was investigated by means of the efficiency of electrokinetic remediation method. Natural soil samples containing clinoptilolite, gypsum and calcite minerals were used in experimental studies. Moreover, a sample containing kaolinite minerals was studied to compare with the results obtained from other samples. Best results for soils bearing alkali and high sorption capacity minerals were obtained upon addition of 3 mol AcH and application of 20 V constant potential after a remediation period of 220 h. In these test conditions, lead (II) removal efficiencies for these samples varied between 60% and 70% up to 0.55 normalized distance. Under the same conditions, removal efficiencies in kaolinite sample varied between 50% and 95% up to 0.9 normalized distance. (C) 2004 Elsevier B.V All rights reserved.
DOI : 10.1016/j.scitotenv.2004.06.017
Anahtar Kelimeler : electrokinetic remediation, lead (II), calcite, gypsum, dolomite, clinoptilolite, article
Cilt: 337
Sayı: 01.Mar
ISSN: 0048-9697
Sınıflandırma :
25
Impact of weather on COVID-19 pandemic in Turkey
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
Mehmet Şahin
Konu :
Coronavirus, COVID-19, Dew point, Humidity, Temperature, Wind speed, Influenza, Human | Pandemics | Influenza transmission, Environmental Sciences, Decision making, Coronaviruses, Correlation coefficient, Decision makers, Effective parameters, Incubation periods, Infectious disease, Meteorological parameters, Preventive action, Wind, Climate effect, Disease treatment, Infectious disease, Respiratory disease, Urban area, Viral disease, Virus, Controlled study, Coronavirus disease 2019, Coronavirus infection, Correlation analysis, Correlation coefficient, Dew point, Human, Humidity, Incubation time, Meteorological phenomena, Priority journal, Temperature, Turkey (republic), Weather, Wind speed, Transmission
Yıl :
2020
Science of the Total Environment
Yayıncı Web Sitesi
 Piri Tam Metin Bulucu
Kaydet Alıntıla
The coronavirus pandemic, which has numerous global implications, has led people to believe that nothing will be the same as before. The present day is dominated by studies on determining the factors that affect, taking preventive actions, and trying to find an effective treatment on top priority. Meteorological parameters are among the crucial factors affecting infectious diseases. The present study examines the correlation between weather and coronavirus disease 2019 (COVID-19) by considering nine cities in Turkey. In this regard, temperature (°C), dew point (°C), humidity (%), and wind speed (mph) are considered as parameters of weather. Research states that the incubation period of COVID-19 varies from 1 day to 14 days. Therefore, the effects of each parameter within 1, 3, 7, and 14 days are examined. In addition, the population is included as an effective parameter for evaluation. The analyses are conducted based on Spearman's correlation coefficients. The results showed that the highest correlations were observed for population, wind speed 14 days ago, and temperature on the day, respectively. The study results may guide authorities and decision-makers on taking specific measures for the cities. © 2020 Elsevier B.V.
DOI : 10.1016/j.scitotenv.2020.138810
Anahtar Kelimeler : Coronavirus, COVID-19, Dew point, Humidity, Temperature, Wind speed, article
Cilt: 728
ISSN: 0048-9697
Sınıflandırma :
26
Large interannual variability in net ecosystem carbon dioxide exchange of a disturbed temperate peatland
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science Of The Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
Guler Aslan-Sungur , Xuhui Lee , Fatih Evrendilek , Nusret Karakaya
Konu :
Disturbed temperate peatland, Net ecosystem carbon exchange, Water availability, Eddy covariance
Yıl :
2016
Science Of The Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
Peatland ecosystems play an important role in the global carbon (C) cycle as significant C sinks. However, human-induced disturbances can turn these sinks into sources of atmospheric CO2. Long-term measurements are needed to understand seasonal and interannual variability of net ecosystem CO2 exchange (NEE) and effects of hydrological conditions and their disturbances on C fluxes. Continuous eddy-covariance measurements of NEE were conducted between August 2010 and April 2014 at Yenicaga temperate peatland (Turkey), which was drained for agricultural usage and for peat mining until 2009. Annual NEE during the three full years of measurement indicated that the peatland acted as a CO2 source with large interannual variability, at rates of 246, 244 and 663 g Cm-2 yr(-1) for 2011, 2012, and 2013 respectively, except for June 2011, and May to July 2012. The emission strengths were comparable to those found for severely disturbed tropical peatlands. The peak CO2 emissions occurred in the dry summer of 2013 when water table level (WTL) was below a threshold value of -60 cm and soil water content (SCW) below a threshold value of 70% by volume. Water availability index was found to have a stronger explanatory power for variations in monthly ecosystem respiration (ER) than the traditional water status indicators (SCW and WTL). Air temperature, evapotranspiration and vapor pressure deficient were the most significant variables strongly correlated with NEE and its component fluxes of gross primary production and ER. (C) 2016 Elsevier B.V. All rights reserved.
Anahtar Kelimeler : Disturbed temperate peatland, Net ecosystem carbon exchange, Water availability, Eddy covariance, article
Cilt: 554
ISSN: 0048-9697
Sınıflandırma :
27
Applications of carbon nanomaterials in the plant system: A perspective view on the pros and cons
Araştırma Makalesi

Araştırma Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science Of The Total Environment
Yayıncı:
Elsevier
Yazar(lar) :
Sandeep Kumar Verma , Ashok Kumar Das , Saikat Gantait , Vinay Kumar , Ekrem Gurel
Konu :
Carbon-based nanomaterials, Growth responses, Plant nanotechnology, Translocation, Bioaccumulation
Yıl :
2019
Science Of The Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
With the remarkable development in the field of nanotechnology, carbon-based nanomaterials (CNMs) have been widely used for numerous applications in different areas of the plant system. The current understanding about the CNMs' accumulation, translocation, plant growth responses, and stress modulations in the plant system is far from complete. There have been relentless efforts by the researchers worldwide in order to acquire newer insights into the plant-CNMs interactions and the consequences. The present review intends to update the reader with the status of the impacts of the different CNMs on plant growth. Research reports from the plant biotechnologists have documented mixed effects (which are dependent on CNMs' concentration) of the CNMs' exposure on plants ranging from enhanced crop yield to acute cytotoxicity. The growth and yield pattern vary from species to species and are dependent on the dosage of the CNMs applied. Studies found an increase in vegetative growth and yield of fruit/seed at lower concentration of CNMs, but a decrease in these observables were also noted when higher concentrations of CNMs were used. In general, at lower concentrations, CNMs were found to be effective in enhancing (water uptake, water transport, seed germination, nitrogenase, photosystemand antioxidant activities), activating (water channels proteins) and promoting (nutrition absorption); all these change when concentrations are raised. All these aspects have been reviewed thoroughly in this article, with a focus on the recent updates on the role of the CNMs in augmenting or retarding plant growth. Sections have been devoted to the various features of the CNMs and their roles in inducing plant growth, phytotoxic responses of the plants and overall crop improvement. Concluding remarks have been added to propose future directions of research on the CNMs-plant interactions and also to sound a warning on the use of CNMs in agriculture. (C) 2019 Elsevier B.V. All rights reserved.
Anahtar Kelimeler : Carbon-based nanomaterials, Growth responses, Plant nanotechnology, Translocation, Bioaccumulation, Review
Cilt: 667
ISSN: 0048-9697
Sınıflandırma :
28
Gas-particle partitioning and seasonal variation of polycyclic aromatic hydrocarbons in the atmosphere of Zonguldak, Turkey
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Zonguldak Bülent Ecevit Üniversitesi
Yazar(lar) :
Zonguldak Bülent Ecevit Üniversitesi
Konu :
PAHs, Partition coefficients, Seasonal variation, Turkey, Zonguldak
Yıl :
2010
Science of the Total Environment
Yayıncı Web Sitesi
 Piri Tam Metin Bulucu
Kaydet Alıntıla
Atmospheric concentrations and gas-particle partition coefficients were determined for polycyclic aromatic hydrocarbons (PAHs) in the atmosphere of Zonguldak, Turkey between May 2007 and April 2008. Total concentrations of PAHs ranged from 0.52ngm-3 to 636ngm-3 in the particle phase and from 5.60ngm-3 to 725ngm-3 in the gas phase. The annual mean concentrations of PAHs in the particle and gas phase were found to be 114ngm-3 and 184ngm-3, respectively. Significant seasonal variations of particle and gas phase PAH concentrations were observed with higher levels during cold period. The distribution of PAHs between the particle and gas phase was investigated and it was found that three ring PAHs were associated primarily with the gas phase, four ring PAHs were distributed almost equally between the two phases and five and six ring PAHs were mainly associated with the particle phase. Gas-particle partition coefficients (Kp) of PAHs have been calculated and correlated with their subcooled liquid vapor pressures (PL-). The slopes (mr) varied from -0.63 to -0.23 were far from the theoretical value (-1) due to the short distance between the sampling point and the emission sources. The relationships between temperature and gas phase partial pressures of PAHs were examined using the Clausius-Clapeyron equation and the obtained positive slopes indicated that PAH concentrations increased with decreasing air temperature as a result of high dominance of local emissions. © 2010 Elsevier B.V.
DOI : 10.1016/j.scitotenv.2010.07.063
Anahtar Kelimeler : PAHs, Partition coefficients, Seasonal variation, Turkey, Zonguldak, article
Cilt: 408
Sayı: 22
ISSN: 0048-9697
Sınıflandırma :
29
Using system dynamics to assess the environmental management of cement industry in streaming data context
Dergi Makalesi

Dergi Makalesi
Kaynak :
DSpace Makaleler
Dergi:
Science of the Total Environment
Yayıncı:
Science of the Total Environment
Yazar(lar) :
E. Ekinci , Y. Kazancoglu , S.K. Mangla
Yıl :
2020
Science of the Total Environment
Yayıncı Web Sitesi
Kaydet Alıntıla
The cement industry can be regarded as one of the major sources of anthropogenic air pollution. It uses a significant amount of energy while creating substantial amount of potentially health-threatening carbon monoxide (CO), sulfur dioxide (SO2), nitrogen
Anahtar Kelimeler : Article

ISSN: 00489697
Sınıflandırma :
Çevre %93
Çevre %57

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