Polychlorinated biphenyls (PCBs) in recreational marina sediments of San Diego Bay, southern California

MARINE POLLUTION BULLETIN

卷:126

Article

Neira, Carlos¹  Vales, Melissa²  Mendoza, Guillermo¹  Hoh, Eunha²  Levin, Lisa A.¹ 

[1] Scripps Inst Oceanog, Ctr Marine Biodivers & Conservat, Integrat Oceanog Div, La Jolla, CA 92037 USA

[2] San Diego State Univ, Grad Sch Publ Hlth, San Diego, CA 92182 USA

关键词: PCB pollution;    Sediment contamination;    Spatial distribution;    Marina;    San Diego Bay;    California;   

DOI  :  10.1016/j.marpolbul.2017.10.096

来源: Elsevier

【 摘 要 】

Polychlorinated biphenyl (PCB) concentrations were determined in surface sediments from three recreational marinas in San Diego Bay, California. Total PCB concentrations ranged from 23 to 153, 31-294, and 151-1387 ng g(-1) for Shelter Island Yacht Basin (SIYB), Harbor Island West (HW) and Harbor Island East (HE), respectively. PCB concentrations were significantly higher in HE and PCB group composition differed relative to HW and SIYB, which were not significantly different from each other in concentration or group composition. In marina sediments there was a predominance (82-85%) of heavier molecular weight PCBs with homologous groups (6CL-7CL) comprising 59% of the total. In HE 75% of the sites exceeded the effect range median (ERM), and toxicity equivalence (TEQ dioxin-like PCBs) values were higher relative to those of HW and SIYB, suggesting a potential ecotoxicological risk.

【 授权许可】

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