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1. High-Performance Electron Field Emitters and Microplasma Cathodes Based on Conductive Hybrid Granular Structured Diamond Materials

Author:
Saravanan, Adhimoorthy; Huang, Bohr-Ran; Manoharan, Divinah; Lin, I-Nan
Source:
ACS Applied Materials & Interfaces 2017 v.9 no.5 pp. 4916-4925
ISSN:
1944-8252
Subject:
atmospheric deposition,   etc   ; cathodes; electrons; synthesis;     Show all 4 Subjects
Abstract:
... High-performance diamond electron field emitters (EFEs) with extremely low turn-on field (E₀ = 1.72 V/μm) and high current density (1.70 mA/cm² at an applied field of 3.86 V/μm) were successfully synthesized by using a modified two-step microwave plasma chemical deposition process. Such emitters possess EFE properties comparable with most of carbon- or semiconductor-based EFE materials, but with m ...
DOI:
10.1021/acsami.6b12375

2. Freshwater and airborne textile fibre populations are dominated by ‘natural’, not microplastic, fibres

Author:
Stanton, Thomas; Johnson, Matthew; Nathanail, Paul; MacNaughtan, William; Gomes, Rachel L.
Source:
The Science of the total environment 2019 v.666 pp. 377-389
ISSN:
0048-9697
Subject:
atmospheric deposition,   etc   ; biodegradability; freshwater; microplastics; pollutants; pollution; risk; rivers; synthetic fibers; textile fibers; watersheds; United Kingdom;     Show all 12 Subjects
Abstract:
... The potential role of natural textile fibres as environmental pollutants has been speculated upon by some environmental scientists, however, there is a general consensus that their biodegradability reduces their environmental threat. Whilst the risks that they pose remain poorly understood, their environmental prevalence has been noted in several recent microplastic pollution manuscripts. Here we ...
DOI:
10.1016/j.scitotenv.2019.02.278

3. Isotopic advances in understanding reactive nitrogen deposition and atmospheric processing

Author:
Elliott, Emily M.; Yu, Zhongjie; Cole, Amanda S.; Coughlin, Justin G.
Source:
The Science of the total environment 2019 v.662 pp. 393-403
ISSN:
0048-9697
Subject:
atmospheric deposition,   etc   ; ammonia; ammonium; emissions; landscapes; nitrates; nitric acid; nitric oxide; nitrogen; nitrogen dioxide; stable isotopes;     Show all 11 Subjects
Abstract:
... Recent advances in stable isotope measurements now allow for detailed investigations of the sources, transformations, and deposition of reactive nitrogen (N) species. Stable isotopes show promise as a complementary tool for apportioning emissions sources that contribute to deposition and also for developing a more robust understanding of the transformations that can influence these isotope ratios. ...
DOI:
10.1016/j.scitotenv.2018.12.177

4. Levels of polybrominated diphenyl ethers and hexabromocyclododecane in treatment plant sludge: Implications on sludge management

Author:
Demirtepe, Hale; Imamoglu, Ipek
Source:
Chemosphere 2019 v.221 pp. 606-615
ISSN:
0045-6535
Subject:
atmospheric deposition,   etc   ; air; diastereomers; dust; hexabromocyclododecane; models; polybrominated diphenyl ethers; sewage sludge; wastewater treatment; Turkey (country);     Show all 10 Subjects
Abstract:
... Past usage of polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCDD) in commercial products resulted in their continuous emission from sources. Wastewater treatment plants (WWTP) are the main sinks resulting from their industrial and domestic usage as well as atmospheric deposition. This preliminary study examined levels of PBDEs and HBCDD in urban and industrial WWTP sludge sam ...
DOI:
10.1016/j.chemosphere.2019.01.060

5. Perchlorate in environmental waters of the Laurentian Great Lakes watershed: Evidence for uneven loading

Author:
Van Stempvoort, D.R.; Struger, J.; Brown, S.J.
Source:
Journal of Great Lakes research 2019 v.45 no.2 pp. 240-251
ISSN:
0380-1330
Subject:
atmospheric deposition,   etc   ; anthropogenic activities; basins; biodegradation; databases; lakes; perchlorates; streams; subwatersheds; urban areas; Lake Erie;     Show all 11 Subjects
Abstract:
... A database of nearly 500 analyses of perchlorate in water samples from the Laurentian Great Lakes (LGL) watershed is presented, including samples from streams, from the Great Lakes and their connecting waters, with a special emphasis on Lake Erie. These data were assessed to test an earlier hypothesis that loading of perchlorate to the LGL watershed is relatively uniform. Higher perchlorate concen ...
DOI:
10.1016/j.jglr.2018.12.007

6. Increase in anthropogenic mercury in marginal sea sediments of the Northwest Pacific Ocean

Author:
Kim, Haryun; Lee, Kitack; Lim, Dhong-Il; Nam, Seung-Il; Han, Seung hee; Kim, Jihun; Lee, Eunil; Han, In-Seong; Jin, Young Keun; Zhang, Yanxu
Source:
The Science of the total environment 2019 v.654 pp. 801-810
ISSN:
0048-9697
Subject:
atmospheric deposition,   etc   ; mercury; sediment contamination; sediments; Arctic region; China; Chukchi Sea; Pacific Ocean;     Show all 8 Subjects
Abstract:
... Over the past century, the addition of anthropogenic mercury (HgANTH) to vast areas of North Pacific marginal seas adjacent to the northeast Asian continent has tripled. Analysis of sediment cores showed that the rate of HgANTH addition (HgANTH flux) was greatest in the East China and Yellow Seas (9.1 μg m−2 yr−1) in the vicinity of China (the source continent), but was small in the Bering and wes ...
DOI:
10.1016/j.scitotenv.2018.11.076

7. Buried Paleosols as Reference Objects for Assessing the Current Level of Soil Pollution with Lead in the Lower Volga Steppes

Author:
Pampura, T. V.; Meili, M.; Holm, K.; Candaudap, F.; Probst, A.
Source:
Eurasian soil science 2019 v.52 no.1 pp. 34-49
ISSN:
1064-2293
Subject:
atmospheric deposition,   etc   ; aerosols; anthropogenic activities; buried soils; gasoline; lead; roads; roadside soils; roadsides; steppes; zirconium;     Show all 11 Subjects
Abstract:
... The estimation of soil contamination with anthropogenic lead requires uncontaminated analogues of the recent soils for comparison. For this purpose, a paleosol buried under a 2-m high burial mound of the Bronze Age and protected by it from atmospheric deposition during 4500 years was studied. The content and isotopic composition of mobile and total lead in the buried and recent soils (roadside and ...
DOI:
10.1134/S1064229319010113

8. Sources and exchanges of mercury in the waters of the Northwestern Mediterranean margin

Author:
Cossa, Daniel; Durrieu de Madron, Xavier; Schäfer, Jörg; Guédron, Stéphane; Marusczak, Nicolas; Castelle, Sabine; Naudin, Jean-Jacques
Source:
Progress in oceanography 2018 v.163 pp. 172-183
ISSN:
0079-6611
Subject:
atmospheric deposition,   etc   ; continental shelf; dissolved oxygen; mercury; seawater; sediments;     Show all 6 Subjects
Abstract:
... Ocean margins are focal regions in terms of mercury (Hg) exchanges between the continent and the open sea. The aim of this paper is to describe the distribution and partition of Hg between the gaseous, dissolved and particulate phases in the waters of the Northwestern Mediterranean (NWM) margin, in order to assess the Hg sources and exchanges within the continuum between the continental shelf (Gul ...
DOI:
10.1016/j.pocean.2017.05.002

9. Spatial structures of heavy metals and nitrogen accumulation in moss specimens sampled between 1990 and 2015 throughout Germany

Author:
Schröder, Winfried; Nickel, Stefan
Source:
Environmental sciences Europe 2019 v.31 no.1 pp. 33
ISSN:
2190-4707
Subject:
atmospheric deposition,   etc   ; data collection; heavy metals; kriging; models; mosses and liverworts; nitrogen; persistent organic pollutants; samplers; surveys; Germany;     Show all 11 Subjects
Abstract:
... BACKGROUND: The collection of atmospheric deposition by technical samplers and validated deposition modelling using chemical transport models is spatially complemented by using mosses as bioindicator: since 1990, the European moss survey has been providing data on element concentrations in moss every 5 years at up to 7300 sampling sites. In the moss specimens, heavy metals (since 1990), nitrogen ( ...
DOI:
10.1186/s12302-019-0216-y

10. Vertical distributions of mercury in marine sediment cores from central and southern part of Bohai Sea, China

Author:
Liu, Liang; Wang, Juying; Wang, Lijun; Hu, Yingying; Ma, Xindong
Source:
Ecotoxicology and environmental safety 2019 v.170 pp. 399-406
ISSN:
0147-6513
Subject:
atmospheric deposition,   etc   ; additive effect; estuaries; industrialization; lead; marine sediments; mercury; models; oceans; pollution; China; Yellow River; Yellow Sea;     Show all 13 Subjects
Abstract:
... In past decades, China has experienced substantial economic growth and industrialization. However, the effects of vast development of China on Hg input to the nearby oceans are still unclear. In this study, four representative 210Pb-dated sediment cores were collected in the central and southern part of Bohai sea to investigate vertical changes of Hg contents and explore the relationship between t ...
DOI:
10.1016/j.ecoenv.2018.12.003

11. Polycyclic aromatic hydrocarbon and ionic compositions of atmospheric bulk deposition samples at a national park under the influence of intense barbecue smoke

Author:
Bayramoğlu Karşı, Melike Büşra; Berberler, Ercan; Karakaş, Duran
Source:
International journal of environmental analytical chemistry 2019 v.99 no.5 pp. 428-443
ISSN:
1029-0397
Subject:
atmospheric deposition,   etc   ; United States Environmental Protection Agency; grilling; ions; national parks; polycyclic aromatic hydrocarbons; potassium; smoke; sulfates;     Show all 9 Subjects
Abstract:
... The main aim of this study was to present the effects of barbecue smoke on a small-scale environment, a national park under the influence of intense barbecue smoke, and to scientifically support the sustainable usage of the park. Twelve-weekly bulk deposition samples were collected directly at the barbecuing area, and the samples were analysed for 16 US EPA’s priority PAH compounds and major ions. ...
DOI:
10.1080/03067319.2019.1597868

12. How to distinguish urban vs. agricultural sources of persistent organic pollutants?

Author:
Venier, Marta; Salamova, Amina; Hites, Ronald A.
Source:
Current opinion in environmental science & health 2019 v.8 pp. 23-28
ISSN:
2468-5844
Subject:
atmospheric deposition,   etc   ; DDT (pesticide); HCH (pesticide); flame retardants; persistent organic pollutants; polychlorinated biphenyls; source attribution; Great Lakes;     Show all 8 Subjects
Abstract:
... A relatively simple and effective method for distinguishing between urban and agricultural sources of anthropogenic chemicals is presented here, with a special focus on persistent organic pollutants (POPs). This method is applied to atmospheric concentrations of many compounds at six sites, which are as a part of the Integrated Atmospheric Deposition Network (IADN) operating on the shores of the N ...
DOI:
10.1016/j.coesh.2019.01.005

13. Vertical profile of organic and elemental carbon in sediments of Songkhla Lake, Thailand

Author:
Pongpiachan, Siwatt; Tipmanee, Danai; Choochuay, Chomsri; Hattayanone, Mattanawadee; Deelaman, Woranuch; Iadtem, Natthapong; Bunsomboonsakul, Suratta; Palakun, Jittree; Poshyachinda, Saran; Leckngam, Apichart; Somboonpon, Pitipong; Panyaphirawat, Thirasak; Aukkaravittayapun, Suparerk; Wang, Qiyuan; Xing, Li; Li, Guohui; Han, Yongming; Cao, Junji
Source:
Limnology 2019 v.20 no.2 pp. 203-214
ISSN:
1439-8621
Subject:
atmospheric deposition,   etc   ; biomass; emissions; fossil fuels; fuel combustion; historical records; lakes; organic carbon; sediments; volcanic activity; watersheds; Thailand;     Show all 12 Subjects
Abstract:
... In this study, a historical record of atmospheric deposition in the sediment cores from Songkhla Lake, the second largest lake in Southeast Asia, located in the southern part of Thailand is reported. It is well known that lake sediments, including spheroidal carbonaceous particles generated by both anthropogenic and natural emissions, contain records of lake, catchment, and atmospheric deposition ...
DOI:
10.1007/s10201-018-0568-9

14. Concentrations and distribution of phthalate esters in the seamount area of the Tropical Western Pacific Ocean

Author:
Zhang, Qian; Song, Jinming; Li, Xuegang; Peng, Quancai; Yuan, Huamao; Li, Ning; Duan, Liqin; Ma, Jun
Source:
Marine pollution bulletin 2019 v.140 pp. 107-115
ISSN:
0025-326X
Subject:
atmospheric deposition,   etc   ; dibutyl phthalate; gas chromatography-mass spectrometry; leaching; microplastics; risk; seamounts; seawater; water pollution; Pacific Ocean;     Show all 10 Subjects
Abstract:
... A total of 14 phthalate esters (PAEs) were analysed by gas chromatography–mass spectrometry (GC–MS) to better understand its occurrence and distribution in seawater samples of M2 seamount in the Tropical Western Pacific Ocean (TWPO). The concentrations of ΣPAEs in the seawater ranged from 12.13 ng L−1 to 60.69 ng L−1 (av. 28.86 ng L−1), dominated by dibutyl phthalate (DBP), di(2‑ethylhexyl) phthal ...
DOI:
10.1016/j.marpolbul.2019.01.015

15. An Integrated Model for Input and Migration of Mercury in Chinese Coastal Sediments

Author:
Meng, Mei; Sun, Ruo-yu; Liu, Hong-wei; Yu, Ben; Yin, Yong-guang; Hu, Li-gang; Shi, Jian-bo; Jiang, Gui-bin
Source:
Environmental science & technology 2019 v.53 no.5 pp. 2460-2471
ISSN:
1520-5851
Subject:
atmospheric deposition,   etc   ; biogeochemical cycles; coastal sediments; environmental management; estuaries; industrial wastewater; isotopes; marine sediments; mercury; mixing; statistical models;     Show all 11 Subjects
Abstract:
... Coastal sediments are a major sink of the global mercury (Hg) biogeochemical cycle, bridging terrestrial Hg migration to the open ocean. It is thus of substantial interest to quantify the Hg contributors to coastal sediments and the extents to which the Hg sequestered into coastal sediments affects the ocean. Here, we measured concentrations and isotope compositions of Hg in Chinese coastal sedime ...
DOI:
10.1021/acs.est.8b06329

16. Study of the bioavailability of heavy metals from atmospheric deposition on the soil-pakchoi (Brassica chinensis L.) system

Author:
Liu, Hai-Long; Zhou, Jun; Li, Min; Hu, Yuan-mei; Liu, Xiaoli; Zhou, Jing
Source:
Journal of hazardous materials 2019 v.362 pp. 9-16
ISSN:
0304-3894
Subject:
atmospheric deposition,   etc   ; Brassica rapa subsp. chinensis; bioavailability; cadmium; copper; heavy metals; lead; photosynthesis; pot culture; reciprocal translocation; risk; topsoil;     Show all 12 Subjects
Abstract:
... The objective of this study was to investigate the bioavailability of heavy metals from atmospheric deposition on the soil-pakchoi (Brassica chinensis L.) system near a smelter. Soil reciprocal translocation experiment was conducted with seven groups of pot culture (filled with soils of gradient levels of heavy metals) in three sites of gradient atmospheric heavy metal depositions. Results showed ...
DOI:
10.1016/j.jhazmat.2018.09.032

17. Approaches to modelling radioactive contaminations in forests – Overview and guidance

Author:
Diener, A.; Hartmann, P.; Urso, L.; Vives i Batlle, J.; Gonze, M.A.; Calmon, P.; Steiner, M.
Source:
Journal of environmental radioactivity 2017 v.178-179 pp. 203-211
ISSN:
0265-931X
Subject:
atmospheric deposition,   etc   ; forests; models; radioactivity; radionuclides; wastes;     Show all 6 Subjects
Abstract:
... Modelling the radionuclide cycle in forests is important in case of contamination due to acute or chronic releases to the atmosphere and from underground waste repositories. This article describes the most important aspects to consider in forest model development. It intends to give an overview of the modelling approaches available and to provide guidance on how to address the quantification of ra ...
DOI:
10.1016/j.jenvrad.2017.09.003

18. Distribution and isotopic composition of sedimentary black carbon in a subtropical estuarine-coastal region of the western Taiwan Strait: Implications for tracing anthropogenic inputs

Author:
Wu, Yuling; Ya, Miaolei; Chen, Hanzhe; Li, Yongyu; Guo, Weidong; Wang, Xinhong
Source:
The Science of the total environment 2019 v.684 pp. 509-518
ISSN:
0048-9697
Subject:
atmospheric deposition,   etc   ; anthropogenic activities; biomass; burning; carbon; coastal sediments; coasts; estuaries; fossil fuels; inventories; oxidation; reflectance; rivers; sediment transport; soot; stable isotopes; water currents; Taiwan; Yangtze River;     Show all 19 Subjects
Abstract:
... Estuarine and coastal margins are strongly influenced by anthropogenic inputs. To trace anthropogenic inputs to the subtropical Jiulong River Estuary (JRE) and the adjacent western Taiwan Strait (WTS), black carbon (BC) and its stable carbon isotope composition (δ13СBC) in surface sediments were investigated as an indicator of human activities. The concentrations of sedimentary BC were measured by ...
DOI:
10.1016/j.scitotenv.2019.05.165

19. How closely do mercury trends in fish and other aquatic wildlife track those in the atmosphere? – Implications for evaluating the effectiveness of the Minamata Convention

Author:
Wang, Feiyue; Outridge, Peter M.; Feng, Xinbin; Meng, Bo; Heimbürger-Boavida, Lars-Eric; Mason, Robert P.
Source:
The Science of the total environment 2019 v.674 pp. 58-70
ISSN:
0048-9697
Subject:
atmospheric deposition,   etc   ; aquatic environment; bioavailability; biogeochemistry; case studies; climate; climate change; emissions; environmental monitoring; fish; human food chain; humans; inventories; mercury; niches; wildlife;     Show all 16 Subjects
Abstract:
... The Minamata Convention to reduce anthropogenic mercury (Hg) emissions entered into force in 2017, and attention is now focused on how to best monitor its effectiveness at reducing Hg exposure to humans. A key question is how closely Hg concentrations in the human food chain, especially in fish and other aquatic wildlife, will track the changes in atmospheric Hg that are expected to occur followin ...
DOI:
10.1016/j.scitotenv.2019.04.101

20. Anthropogenic and lithogenic fluxes of atmospheric lead deposition over the past 3600 years from a peat bog, Changbai Mountains, China

Author:
Guo, Bobo; Wang, Jing; Lin, Chunye; He, Mengchang; Ouyang, Wei
Source:
Chemosphere 2019 v.227 pp. 225-236
ISSN:
0045-6535
Subject:
atmospheric deposition,   etc   ; anthropogenic activities; bogs; carbon; cesium; climate; climate change; cold; economic development; emissions; gasoline; geochemistry; lead; mountains; peat; peatlands; radiometry; radionuclides; volcanic activity; China;     Show all 20 Subjects
Abstract:
... Ombrotrophic peatlands are widely used to reconstruct atmospheric metal deposition histories. Here, we estimated the long-term atmospheric Pb deposition flux using ombrotrophic peatland data from the Changbai Mountains, northeast China. A peat profile of 320-cm depth was sampled and cut into 164 slices for measurement of Pb and other elements by ICP-MS and ICP-AES and radiometric dating by 210Pb, ...
DOI:
10.1016/j.chemosphere.2019.04.047