Trends in Chlorinated Hydrocarbon Levels in Hudson River Basin Sediments

Bopp, Richard F.; Chillrud, Steven N.; Shuster, Edward L.; Simpson, H. J.; Estabrooks, Frank D.

doi:10.2307/3434155

Cited by 18 publications

(24 citation statements)

References 10 publications

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“…The JB core was taken from an area in JB known as Grassy Bay, which essentially acts as a large catchment basin for wastewater effluent (33). This inland bay is poorly flushed by tidal currents and experiences seasonal water-column stratification and bottom water anoxia (43). In contrast, bottom waters at the CB location are well oxygenated year round (40).…”

Section: Geographic Variability In the Environmental Fate Of Both Biomentioning

confidence: 99%

Fate of Triclosan and Evidence for Reductive Dechlorination of Triclocarban in Estuarine Sediments

Miller

Heidler

Chillrud

et al. 2008

Environ. Sci. Technol.

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208

158

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The biocides triclosan and triclocarban are wastewater contaminants whose occurrence and fate in estuarine sediments remain unexplored. We examined contaminant profiles in 137 Cs/ 7 Be-dated sediment cores taken near wastewater treatment plants in the Chesapeake Bay watershed (CB), Maryland and Jamaica Bay (JB), New York. In JB, biocide occurrences tracked the time course of biocide usage and wastewater treatment strategies employed, first appearing in the 1950s (triclocarban) and 1960s (triclosan), and peaking in the late 1960s and 1970s (24 ± 0.54 and 0.8 ± 0.4 29 mg/kg dry weight, respectively). In CB, where time of sediment accumulation was not as well constrained by 137 Cs depth profiles, triclocarban was only measurable in 137 Cs bearing sediments, peaking at 3.6 ± 0.6 mg/kg midway through the core and exceeding 1 mg/kg in recent deposits. In contrast, triclosan concentrations were low or not detectable in the CB core. Analysis of CB sediment by tandem mass spectrometry produced the first evidence for complete sequential dechlorination of triclocarban to the transformation products dichloro-, monochloro-, and unsubstituted carbanilide which were detected at maxima of 15.5 ± 1.8, 4.1 ± 2.4, and 0.5 ± 0.1 mg/kg, respectively. Concentrations of all carbanilide congeners combined were correlated with heavy metals (R 2 > 0.64, P<0.01), thereby identifying wastewater as the principal pathway of contamination. Environmental persistence over the past 40 years was observed for triclosan and triclocarban in JB, and for triclocarban and its diphenylurea backbone in CB sediments.

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Section: Geographic Variability In the Environmental Fate Of Both Biomentioning

confidence: 99%

Fate of Triclosan and Evidence for Reductive Dechlorination of Triclocarban in Estuarine Sediments

Miller

Heidler

Chillrud

et al. 2008

Environ. Sci. Technol.

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208

158

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“…Bopp et al (1991) reached this conclusion (also for 2, 3,7,3,7, and DDT) on the basis of age-dated sediment cores collected near the site and in the surrounding region, noting in particular that: (1) the timing of peak concentration coincides with the production period at the Lister Avenue site; (2) concentrations decline moving away from the site for time horizons in the 1960s and 1980s (also in Bopp et al 1998);(3) the decline between the 1960s and 1980s is consistent with the Lister Avenue site production ceasing in 1969; and (4) high concentrations were found in soil samples collected from the Lister Avenue site. Similar regional spatial and temporal patterns were noted by Chaky (2003) for the 1960s and 1995 periods using age-dated cores from Newark Bay and throughout the New York/New Jersey (NY/NJ) Harbor Estuary.…”

Section: Introductionmentioning

confidence: 99%

“…The LPR has been an effective trap of both sediments and hydrophobic contaminants (Chant et al 2011;Huntley et al 1995;Bopp et al 1991Bopp et al , 1998Chaky 2003). Chant et al (2011) argue, based on a solids mass balance, that the infilling over the 1 The ongoing investigations of the LPR use river miles (RMs) rather than river kilometers to indicate longitudinal position.…”

Section: Introductionmentioning

confidence: 99%

Fate and Transport of Hydrophobic Organic Chemicals in the Lower Passaic River: Insights from 2,3,7,8-Tetrachlorodibenzo-p-Dioxin

Israelsson¹,

Quadrini²,

Connolly³

2014

Estuaries and Coasts

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The fate and transport of hydrophobic organic chemicals (HOCs) is particularly complex in estuaries because of bidirectional longitudinal currents, density stratification, the tendency to trap sediments, and significant dilution in the downstream bay or ocean. Investigations of HOCs in estuaries are further complicated because HOCs typically enter from multiple sources. The distribution of contaminants in estuarine sediment beds reflect a time integration of a complex balance of time-and space-variable fate and transport processes and loading history. A unique opportunity to study HOC fate and transport exists in the Lower Passaic River (LPR), where a pesticide manufacturer was the dominant source of 2, 3,7,3,7, to the estuary and the distribution of this "tracer of opportunity" provides insights about fate and transport processes in estuarine systems. This paper presents observed sediment 2,3,7,8-TCDD patterns within the LPR and the adjacent Newark Bay, and interprets them in terms of fate and transport processes that likely distributed the contaminant from its dominant source, drawing upon other physical datasets as needed. Major observations include that estuarine transport processes have distributed 2,3,7,8-TCDD approximately 18 km upstream of the source and downstream across Newark Bay, and that, generally, HOC trapping processes within the LPR have been highly effective, particularly near the 2,3,7,8-TCDD source and in downstream areas. The present LPR surface sediment 2,3,7,8-TCDD distribution indicates spatially variable recovery, which appears broadly driven by historical net sedimentation patterns, though the dominant processes may be shifting as the system continues to evolve.

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“…For example, lead (19) or cesium (20) isotope data can sometimes provide information about the age of chemical release. Evaluating isoprenoids helps investigators to estimate the age of diesel releases (21)(22)(23).…”

Section: Under the Analytical Frameworkmentioning

confidence: 99%

Allocating Cleanup Costs at Hazardous Waste Sites

Ram¹,

Wiest²,

Davis³

2005

Environ. Sci. Technol.

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Cleanup Costs at WASTE Sites Most people agree that Superfund sites and other complex, multiparty, hazardous waste sites that pose risks to human health and the environment should be remediated. However, the process of apportioning cleanup costs is often disputed among the potentially responsible parties (PRPs). As the available state and federal funding for site cleanup has diminished, pressure has increased for PRP-funded cleanups. Allocating uncertain cleanup costs in a timely, equitable, and mutually acceptable manner among numerous PRPs with different connections to the site, especially given varying legal interpretations and limited data, creates a difficult dilemma. Costly and protracted litigation to determine cost shares is an increasingly unattractive option and provides a strong incentive for devising a fair, understandable, and efficient privately administered approach to allocating costs among PRPs. This article outlines such an approach.Apportioning costs among potentially responsible parties is complicated but can be done with allocation formulas.

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Trends in Chlorinated Hydrocarbon Levels in Hudson River Basin Sediments

Cited by 18 publications

References 10 publications

Fate of Triclosan and Evidence for Reductive Dechlorination of Triclocarban in Estuarine Sediments

Fate of Triclosan and Evidence for Reductive Dechlorination of Triclocarban in Estuarine Sediments

Fate and Transport of Hydrophobic Organic Chemicals in the Lower Passaic River: Insights from 2,3,7,8-Tetrachlorodibenzo-p-Dioxin

Allocating Cleanup Costs at Hazardous Waste Sites

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