globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2016.02.066
Scopus记录号: 2-s2.0-84959504160
论文题名:
The occurrence of PAHs and faecal sterols in Dublin Bay and their influence on sedimentary microbial communities
作者: Murphy B.T.; O'Reilly S.S.; Monteys X.; Reid B.F.; Szpak M.T.; McCaul M.V.; Jordan S.F.; Allen C.C.R.; Kelleher B.P.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 106, 期:2018-01-02
起始页码: 215
结束页码: 224
语种: 英语
英文关键词: Faecal sterols ; Microbial impact ; PAHs ; PLFAs ; Sediment
Scopus关键词: Alcohols ; Aromatic hydrocarbons ; Carbon ; Catchments ; Deposition ; Fatty acids ; Lipids ; Meteorological problems ; Microorganisms ; Organic carbon ; Organic compounds ; Particle size ; Phospholipids ; Pollution ; Sedimentology ; Sediments ; Sewage ; Submarine geology ; Anthropogenic pollution ; Atmospheric depositions ; Faecal sterols ; Microbial impact ; Microbial populations ; Phospholipid fatty acids ; PLFAs ; Polycyclic aromatic hydrocarbons (PAHS) ; Polycyclic aromatic hydrocarbons ; biological marker ; fatty acid ; hydrogen ; nitrogen ; organic matter ; polycyclic aromatic hydrocarbon derivative ; rain ; sterol ; aluminum silicate ; clay ; polycyclic aromatic hydrocarbon ; sewage ; sterol ; water pollutant ; anthropogenic source ; biomarker ; fatty acid ; marine pollution ; marine sediment ; microbial community ; PAH ; particle size ; sediment pollution ; sewage ; sterol ; total organic carbon ; Article ; atmospheric deposition ; bay ; clay ; concentration (parameters) ; controlled study ; feces ; Ireland ; mass fragmentography ; microbial community ; microbial population dynamics ; nonhuman ; particle size ; runoff ; sediment ; sewage ; total organic carbon ; analysis ; chemistry ; environmental monitoring ; microbiology ; sediment ; water pollutant ; County Dublin ; Dublin Bay ; Ireland ; Leinster ; Aluminum Silicates ; Bays ; Biomarkers ; Environmental Monitoring ; Geologic Sediments ; Ireland ; Particle Size ; Polycyclic Aromatic Hydrocarbons ; Sewage ; Sterols ; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: The source, concentration, and potential impact of sewage discharge and incomplete organic matter (OM) combustion on sedimentary microbial populations were assessed in Dublin Bay, Ireland. Polycyclic aromatic hydrocarbons (PAHs) and faecal steroids were investigated in 30 surface sediment stations in the bay. Phospholipid fatty acid (PLFA) content at each station was used to identify and quantify the broad microbial groups present and the impact of particle size, total organic carbon (%TOC), total hydrogen (%H) and total nitrogen (%N) was also considered. Faecal sterols were found to be highest in areas with historical point sources of sewage discharge. PAH distribution was more strongly associated with areas of deposition containing high %silt and %clay content, suggesting that PAHs are from diffuse sources such as rainwater run-off and atmospheric deposition. The PAHs ranged from 12 to 3072 ng/g, with 10 stations exceeding the suggested effect range low (ERL) for PAHs in marine sediments. PAH isomer pair ratios and sterol ratios were used to determine the source and extent of pollution. PLFAs were not impacted by sediment type or water depth but were strongly correlated to, and influenced by PAH and sewage levels. Certain biomarkers such as 10Me16:0, i17:0 and a17:0 were closely associated with PAH polluted sediments, while 16:1ω9, 16:1ω7c, Cy17:0, 18:1ω6, i16:0 and 15:0 all have strong positive correlations with faecal sterols. Overall, the results show that sedimentary microbial communities are impacted by anthropogenic pollution. © 2016 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87316
Appears in Collections:过去全球变化的重建
全球变化的国际研究计划

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作者单位: School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; Geological Survey of Ireland, Beggars Bush, Haddington Rd, Dublin 4, Ireland; School of Biological Sciences, Queens University Belfast, Medical Biology Centre, Lisburn Rd, Belfast, N. Ireland, United Kingdom; Earth, Atmospheric and Planetary Sciences Department, Massachusetts Institute of Technology, E25-653, 45 Carleton St., Cambridge, MA, United States

Recommended Citation:
Murphy B.T.,O'Reilly S.S.,Monteys X.,et al. The occurrence of PAHs and faecal sterols in Dublin Bay and their influence on sedimentary microbial communities[J]. Marine Pollution Bulletin,2016-01-01,106(2018-01-02)
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