globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2016.05.007
Scopus记录号: 2-s2.0-84969535071
论文题名:
Can PBDE natural formation and degradation processes interfere with the identification of anthropogenic trends and sources? Evidences from sediments of the Nador Lagoon (Morocco)
作者: Piazza R.; Bellucci L.G.; Giuliani S.; Romano S.; Frignani M.; Pizzini S.; Polo F.P.; Vecchiato M.; Zambon S.; El Moumni B.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 108, 期:2018-01-02
起始页码: 15
结束页码: 23
语种: 英语
英文关键词: Contamination ; Degradation ; Morocco ; Nador Lagoon ; Natural formation ; Polybrominated diphenyl ethers (PBDEs)
Scopus关键词: Contamination ; Degradation ; Lakes ; Sediments ; Anaerobic degradation ; Congener compositions ; Morocco ; Nador Lagoon ; Natural formations ; Polybrominated diphenyl ether (PBDEs) ; Structural analogue ; Surficial concentration ; Organic pollutants ; anthropogenic source ; concentration (composition) ; degradation ; lacustrine deposit ; lake pollution ; PBDE ; pollutant source ; Article ; concentration (parameters) ; controlled study ; degradation ; ecosystem ; endangered species ; Morocco ; pollutant ; porosity ; river basin ; sediment ; analysis ; chemistry ; environmental monitoring ; sediment ; water pollutant ; Morocco ; Nador Lagoon ; Oriental ; diphenyl ether derivative ; water pollutant ; Environmental Monitoring ; Geologic Sediments ; Halogenated Diphenyl Ethers ; Morocco ; 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: This paper presents the first results related to PBDE concentrations in sediments of the Nador Lagoon (N-E Morocco), an area endangered by different pollutant sources. Analyses were performed by HRGC-LRMS and confirmed by HRGC-HRMS on selected samples. Total surficial concentrations were 0.059-8.2 ng g-1. The maxima were found close to Nador City. Along the sedimentary records, the highest total concentrations (11 and 2.2 ng g-1) were found at depths corresponding to times (1930s-1950s) when these chemicals were not yet produced. Dehydroxylation or demethoxylation of naturally occurring structural analogues of PBDEs under reducing conditions was suggested. BDE-47 dominated the congener compositions, while BDE-209, when present, could be detected only by HRGC-HRMS, proving that analytical degradation modified the original assemblage. Microbial anaerobic degradation could have changed congener compositions in sediments deposited from the 1970s to the 2000s. Current values are not harmful, but increasing trends call for constant monitoring. © 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/86996
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: Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Via Torino, 155, Venice Mestre (VE), Italy; CNR-Institute for the Dynamics of Environmental Processes, Via Torino, 155, Venice Mestre (VE), Italy; CNR-Institute of Marine Sciences, Via Gobetti 101, Bologna, Italy; Faculty of Sciences and Techniques, University of Tangier, BP 416, Ancienne Route de l'Aéroport, Km 10, Ziaten, Tangier, Morocco; Polydisciplinary Faculty of Larache, BP 745, Route de Rabat, Larache, Tangier Region, Morocco

Recommended Citation:
Piazza R.,Bellucci L.G.,Giuliani S.,et al. Can PBDE natural formation and degradation processes interfere with the identification of anthropogenic trends and sources? Evidences from sediments of the Nador Lagoon (Morocco)[J]. Marine Pollution Bulletin,2016-01-01,108(2018-01-02)
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