Application of passive sampling for measuring dissolved concentrations of organic contaminants in the water column at three marine superfund sites.

摘要: Currently, there is an effort under way to encourage remedial project managers at contaminated sites use passive sampling collect freely dissolved concentrations (Cfree) of hydrophobic organic contaminants improve site assessments. The objective the present study was evaluate for measuring water column Cfree several 3 US Environmental Protection Agency Superfund sites. Sites investigated included New Bedford Harbor (New Bedford, MA, USA), Palos Verdes Shelf (Los Angeles, CA, and Naval Station Newport (Newport, RI, USA); samplers evaluated were polyethylene, polydimethylsiloxane-coated solid-phase microextraction fibers, semipermeable membrane devices, polyoxymethylene. In general, different demonstrated good agreement, with values varying by a factor 2 3. Further, Harbor, where conventional sample also measured (i.e., grab samples), sampler–based agreed within 2. These findings suggest that all experiencing similar during their respective deployments. Also, strong log-linear, correlative, predictive relationship found between polyethylene sampler accumulation lipid-normalized blue mussel bioaccumulation polychlorinated biphenyls (r2 = 0.92, p < 0.05). demonstrates utility generating scientifically accurate values, which critical making informed environmental management decisions sediment Environ Toxicol Chem 2015;34:1720–1733. Published 2015 SETAC. This article Government work in public domain USA.