title: Polycyclic aromatic hydrocarbons in surface sediments and marine organisms from the Daya Bay, South China.
abstract: Polycyclic aromatic hydrocarbons (PAHs) were investigated in the marine ecosystem of the Daya Bay, South China. The PAH concentrations ranged from 340 to 710 ng/g dry weight in the sediments and from 110 to 520 ng/g wet weight in marine organisms, respectively. The dominant compounds were three- and four-ring PAHs in the sediments (53%-89%) and two- and three-ring PAHs in the marine species (67%-94%), respectively. PAHs mainly originated from both pyrolytic and petrogenic sources. Comparison with the effects-based sediment quality guideline values suggested that the ecological risk caused by the total PAHs was relatively low (less than 25% incidence of adverse effects) in the sedimentary environment. The median cancer risk level via seafood consumption (1.6 × 10(-5) for urban residents and 1.2 × 10(-5) for rural residents, respectively) was slightly higher than the maximum admissible level (10(-5)) set by US EPA, but lower than the priority risk level (10(-4)).
authors.affiliation: South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Fishery Ecology and Environment of Guangdong Province, Guangzhou 510300, China; Key Laboratory of Ministry of Agriculture for South China Sea Fishery Resources Exploitation & Utilization, Guangzhou 510300, China; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Run-Xia
authors.initials: RX
authors.lastname: Sun
authors.affiliation: South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Fishery Ecology and Environment of Guangdong Province, Guangzhou 510300, China; Key Laboratory of Ministry of Agriculture for South China Sea Fishery Resources Exploitation & Utilization, Guangzhou 510300, China. Electronic address: linqinscs@126.com.
authors.forename: Qin
authors.initials: Q
authors.lastname: Lin
authors.affiliation: South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Fishery Ecology and Environment of Guangdong Province, Guangzhou 510300, China; Key Laboratory of Ministry of Agriculture for South China Sea Fishery Resources Exploitation & Utilization, Guangzhou 510300, China.
authors.forename: Chang-Liang
authors.initials: CL
authors.lastname: Ke
authors.affiliation: South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Fishery Ecology and Environment of Guangdong Province, Guangzhou 510300, China; Key Laboratory of Ministry of Agriculture for South China Sea Fishery Resources Exploitation & Utilization, Guangzhou 510300, China.
authors.forename: Fei-Yan
authors.initials: FY
authors.lastname: Du
authors.affiliation: South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Fishery Ecology and Environment of Guangdong Province, Guangzhou 510300, China; Key Laboratory of Ministry of Agriculture for South China Sea Fishery Resources Exploitation & Utilization, Guangzhou 510300, China.
authors.forename: Yang-Guang
authors.initials: YG
authors.lastname: Gu
authors.affiliation: Center of Fishery Resources and Ecology Environment Research, Chinese Academy of Fishery Sciences, Beijing 100141, China.
authors.forename: Kun
authors.initials: K
authors.lastname: Cao
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Xiao-Jun
authors.initials: XJ
authors.lastname: Luo
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Bi-Xian
authors.initials: BX
authors.lastname: Mai
mesh_terms: D059001:Aquatic Organisms / Q000187:drug effects* / Q000378:metabolism; D061006:Bays; D002681:China; D017753:Ecosystem; D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000378:metabolism; D018570:Risk Assessment; D017747:Seafood / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000378:metabolism
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical
keywords: Daya Bay; Marine organisms; PAHs; Sediments