Reconstruction of historical 2,3,7,8-tetrachlorodibenzo-p-dioxin discharges from a former pesticide manufacturing plant to the Lower Passaic River

Parette, Robert; Velinsky, David J.; Pearson, W N

doi:10.1016/j.chemosphere.2018.08.100

Cited by 6 publications

(1 citation statement)

References 14 publications

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“…In terms of toxic equivalents, concentrations generally ranged from 0.18 (S1) to 0.22 pg TEQ/L (S3), and all of the samples were dominated by 2,3,7,8‐TCDD comprising 64 to 73% of the total TEQ concentrations in the porewater. The dominance of 2,3,7,8‐TCDD in the Passaic has been documented in previous studies (Rubinstein et al 1990; Albrecht et al 1999; Fu et al 2001; Parette et al 2018).…”

Section: Resultssupporting

confidence: 66%

Assessing Benthic Bioaccumulation of Polychlorinated Dioxins/Furans and Polychlorinated Biphenyls in the Lower Passaic River (NJ, USA) Based on In Situ Passive Sampling

Khairy

Lohmann

2020

Enviro Toxic and Chemistry

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Passive sampling has emerged as a promising tool to assess the presence of hydrophobic organic contaminants (HOC) in water, sediment, and biota, such as polychlorinated dibenzo‐p‐dioxins/furans (PCDD/Fs) or polychlorinated biphenyls (PCBs). Previous work evaluated the ability of passive samplers to predict the bioavailability of sedimentary HOCs mostly in the laboratory, often for marine organisms. The present study assessed the use of low‐density polyethylene (LDPE) to derive freely dissolved concentrations of PCDD/Fs and PCBs in porewater in situ versus ex situ and in river water. An LDPE‐based multisampler system was deployed at 4 locations along the lower Passaic River (NJ, USA) in sediment and the water column, where sediment and benthic species samples were also collected. Good agreement was generally observed for PCDD/F and PCB concentrations comparing in situ and ex situ approaches (within 0.30–39%). Significant linear relationships were derived between log LDPE–based and log lipid–based concentrations of PCDD/Fs and PCBs. The in situ multisampler system showed promise to derive HOC concentrations in porewater and river water and to predict the bioaccumulation potential of HOCs in benthic biota. Environ Toxicol Chem 2020;39:1174–1185. © 2020 SETAC

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