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

Abstract:

: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 151-1387ngg-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.

journal_name

Mar Pollut Bull

authors

Neira C,Vales M,Mendoza G,Hoh E,Levin LA

doi

10.1016/j.marpolbul.2017.10.096

subject

Has Abstract

pub_date

2018-01-01 00:00:00

pages

204-214

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(17)30940-2

journal_volume

126

pub_type

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