|Title||Polychlorinated biphenyls (PCBs) in recreational marina sediments of San Diego Bay, southern California|
|Publication Type||Journal Article|
|Year of Publication||2018|
|Authors||Neira C., Vales M., Mendoza G., Hoh E., Levin L.A|
|Journal||Marine Pollution Bulletin|
|Type of Article||Article|
|Keywords||baltic; california; chemical concentrations; Diego Bay; dioxin-like; Environmental Sciences & Ecology; factors tefs; marina; Marine & Freshwater Biology; organic; PCB pollution; pollutants; polycyclic aromatic-hydrocarbons; risk-assessment; San; sea; Sediment contamination; spatial distribution; spatial-distribution; surface sediments; toxic equivalency factors|
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.