DOI: 10.1016/j.marpolbul.2014.01.002
Scopus记录号: 2-s2.0-84893864563
论文题名: Additive modelling reveals spatiotemporal PCBs trends in marine sediments
作者: Everaert G. ; De Laender F. ; Deneudt K. ; Roose P. ; Mees J. ; Goethals P.L.M. ; Janssen C.R.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2014
卷: 79, 期: 2018-01-02 起始页码: 47
结束页码: 53
语种: 英语
英文关键词: Additive modelling
; Marine environment
; Polychlorinated biphenyl (PCB)
; Sediment concentration
; Time trend
Scopus关键词: Additive modelling
; Marine environment
; Polychlorinated biphenyl (PCB)
; Sediment concentration
; Time trend
; Environmental Monitoring
; Geologic Sediments
; Models, Chemical
; Polychlorinated Biphenyls
; Water Pollutants, Chemical
; Water Pollution, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: We developed generalised additive mixed models (GAMMs) to infer spatiotemporal trends of environmental PCB concentrations from an extensive dataset (n=1219) of PCB concentrations measured between 1991 and 2010 in sediments of the Belgian Coastal Zone (BCZ) and the Western Scheldt estuary. A GAMM with time, geographical zone, periodicity and the organic carbon - water partition coefficient as covariates explained 49% of the variability in the log transformed PCB sediment concentrations. The time trends unraveled two to threefold PCB concentration decreases in the BCZ during the last 20. years. However, in the Western Scheldt estuary, time trends were spatially heterogeneous and not significantly decreasing. These results demonstrate that international efforts to cut down emissions of PCBs have been effective to reduce concentrations in open water ecosystems like the BCZ but had little effect in the urbanised and industrialised area of the Scheldt estuary. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85623
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: Ghent University, Laboratory of Environmental Toxicology and Aquatic Ecology, J. Plateaustraat 22, B-9000 Ghent, Belgium; Université de Namur, Biology Department, Research Unit in Environmental and Evolutionary Biology, Rue de Bruxelles, 61, B5000 Namur, Belgium; Flanders Marine Institute VLIZ, InnovOcean Site, Wandelaarkaai 7, B-8400 Ostend, Belgium; Royal Belgian Institute of Natural Sciences, Management Unit, 3de en 23ste Linieregimentsplein, B-8400 Ostend, Belgium
Recommended Citation:
Everaert G.,De Laender F.,Deneudt K.,et al. Additive modelling reveals spatiotemporal PCBs trends in marine sediments[J]. Marine Pollution Bulletin,2014-01-01,79(2018-01-02)