In:
Environmental Toxicology and Chemistry, Wiley, Vol. 34, No. 8 ( 2015-08), p. 1720-1733
Abstract:
Currently, there is an effort under way to encourage remedial project managers at contaminated sites to use passive sampling to collect freely dissolved concentrations (C free ) of hydrophobic organic contaminants to improve site assessments. The objective of the present study was to evaluate the use of passive sampling for measuring water column C free for several hydrophobic organic contaminants at 3 US Environmental Protection Agency Superfund sites. Sites investigated included New Bedford Harbor (New Bedford, MA, USA), Palos Verdes Shelf (Los Angeles, CA, USA), and Naval Station Newport (Newport, RI, USA); and the passive samplers evaluated were polyethylene, polydimethylsiloxane‐coated solid‐phase microextraction fibers, semipermeable membrane devices, and polyoxymethylene. In general, the different passive samplers demonstrated good agreement, with C free values varying by a factor of 2 to 3. Further, at New Bedford Harbor, where conventional water sample concentrations were also measured (i.e., grab samples), passive sampler–based C free values agreed within a factor of 2. These findings suggest that all of the samplers were experiencing and measuring similar C free during their respective deployments. Also, at New Bedford Harbor, a strong log‐linear, correlative, and predictive relationship was found between polyethylene passive sampler accumulation and lipid‐normalized blue mussel bioaccumulation of polychlorinated biphenyls ( r 2 = 0.92, p 〈 0.05). The present study demonstrates the utility of passive sampling for generating scientifically accurate water column C free values, which is critical for making informed environmental management decisions at contaminated sediment sites. Environ Toxicol Chem 2015;34:1720–1733. Published 2015 SETAC. This article is a US Government work and is in the public domain in the USA.
Type of Medium:
Online Resource
ISSN:
0730-7268
,
1552-8618
Language:
English
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
2027441-5
SSG:
12
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