Organic pollutants in the central and coastal Beibu Gulf, South China Sea.

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ID: 99848
2015
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Abstract
Surface sediments from the central and coastal Beibu Gulf, southern China, were analyzed for persistent organic pollutants. The absence of polychlorinated biphenyls (PCB; generally below detection limit), low concentrations of polycyclic aromatic hydrocarbons (PAH; 24-647 ng g(-1)), and locally high contamination with organo-chloro pesticides (DDT; 0.03-92 ng g(-1)) reflect the early stages of development in southwest China, with human activities dominated by agriculture and low impact of industry. Concentrations of PCB and PAH indicate no ecological risk, while DDT accumulation poses a probable toxic risk in coastal but not in shelf sediments. Diagnostic ratios suggest PAH originating mainly from combustion of biomass and diesel fuels, and recent DDT use in agriculture and antifouling paint. Distribution patterns along the coastal-shelf-gradient indicate mainly airborne transport of PAH and waterborne transport of DDT. In the central Gulf, also water column samples reveal low concentrations of PAH (1.7-7.8 ng L(-1)) and DDT (0.006-0.053 ng L(-1)).
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kaiser2015organicmarine Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Kaiser, David;Hand, Ines;DanielaUnger, ;Schulz-Bull, Detlef E;Waniek, Joanna J;
Journal Marine pollution bulletin
Year 2015
DOI
10.1016/j.marpolbul.2015.10.023
URL
Keywords
toxicity aquaculture estuary mangrove beibu gulf source attribution

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