Limited Bioavailability of Sediment Pah Near an Aluminum Smelter: Contamination Does Not Equal Effects

Paine, Michael D.; Chapman, Peter M.; Allard, P.; Murdoch, Mary H.; Minifie, David

doi:10.1897/1551-5028(1996)015<2003:lbospn>2.3.co;2

Cited by 31 publications

(46 citation statements)

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“…Finally, it is important to acknowledge that the screening-level benchmarks, as used in the current study, are useful as part of a burden of evidence approach to assessing the significance and extent of adverse toxicological effects resulting from exposure to these contaminants. Exceedance of any given benchmark does not necessarily result in adverse biological effects [47,48].…”

Section: Discussionmentioning

confidence: 99%

Screening-level ecological and human health risk assessment of polycyclic aromatic hydrocarbons in stormwater detention pond sediments of Coastal South Carolina, USA

Weinstein

Crawford

Garner

et al. 2010

Journal of Hazardous Materials

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Section: Discussionmentioning

confidence: 99%

Screening-level ecological and human health risk assessment of polycyclic aromatic hydrocarbons in stormwater detention pond sediments of Coastal South Carolina, USA

Weinstein

Crawford

Garner

et al. 2010

Journal of Hazardous Materials

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“…To justify using bioremediation or natural attenuation it is necessary to characterize the bioavailability of the PAHs. Not all Ž PAHs are bioavailable Paine et al, 1996;Madsen et . al., 1996 .…”

Section: Discussionmentioning

confidence: 99%

Coal tar in Hamilton Harbour?Attempts at biological restoration guidelines

Murphy¹

2000

Environ. Toxicol.

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Sediments in Hamilton Harbour contain extremely high concentrations of polycyclic ( ) aromatic hydrocarbons PAHs and other contaminants. Two bioassays were used initially to find areas with the worst contamination. Three bioassays were used to develop criteria for cleanup. The bioassays in these sediments yielded the following 50% lethal and 50% effective concentrations for PAHs; Hexagenia 329 g/g, Daphnia 254 g / g, and Microtox TM 89 g / g. The mean bioassay toxicity was rounded down to 200 g / g and used to define areas in need of treatment. Simple aspects like oil content, ship traffic, and water depth were also used to prioritize PAH cleanup. ᮊ 2000 by John Wiley & Sons, Inc. Environ Toxicol 15: 484᎐495, 2000

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“…McGroddy et al (1995) suggested that pyrogenically-associated PAHs may enter aquatic environments associated with soot particles and may not be readily available for exchange with pore water, the more bioavailable fraction. In the MCD system, though some sites had elevated levels of PAHs, the proportion that is bioavailable may be significantly lower than the analyzed fraction due to the presence of pitch or coal particles (Paine et al, 1996).…”

Section: Sedimentsmentioning

confidence: 92%

“…It should also be noted the sediment assessment guideline approach used here does not consider the proportion of the total contaminant that is available for uptake by an organism, that is, the bioavailable fraction. Sedimentary concentrations cannot always be definitively equated to bioavailability (e.g., Paine et al, 1996). For example, Landrum et al (1992) observed enhanced uptake of some PAHs by bioassay organisms when exposed to recently dosed sediments versus historically contaminated or aged sediments.…”

Section: Sedimentsmentioning

confidence: 99%

The Effects of Small Dam Removal on the Distribution of Sedimentary Contaminants

Ashley

Bushaw-Newton

Wilhelm³

et al. 2006

Environ Monit Assess

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With increasing concern over degradation of aquatic resources, issues of liability, and maintenance costs, removal of small dams has become increasing popular. Although the benefits of removal seem to outweigh the drawbacks, there is a relative paucity of studies documenting the extent and magnitude of biological and chemical changes associated with dam removal, especially those evaluating potential changes in contaminant inventories. In August and November of 2000, a run-of-the-river dam on Manatawny Creek (southeast Pennsylvania) was removed in a two-stage process. To assess the effects of dam removal on the contaminant redistribution within the creek, sedimentary concentrations of polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and trace metals (Cd, Cr, Cu, Ni, Pb, Zn) were evaluated prior to and several months after removal. Pre- and post-removal analyses revealed elevated and spatially variable concentrations of total PAHs (ranging from approximately 200 to 81,000 ng(g dry weight) and low to moderate concentrations of trace metals and PCBs. The concentrations of these sedimentary contaminants pre- versus post-removal were not significantly different. Additionally, though the impoundment received storm water run-off and associated contaminants from the adjacent city of Pottstown, the total inventory of fine-grain sediments in the impoundment prior to removal was very low. The removal of the low-level Manatawny Creek dam did not significantly redistribute contaminants downstream. However, each dam removal should be assessed on a case by case basis where the potential of sedimentary contaminant redistribution upon dam removal exists.

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Limited Bioavailability of Sediment Pah Near an Aluminum Smelter: Contamination Does Not Equal Effects

Cited by 31 publications

References 0 publications

Screening-level ecological and human health risk assessment of polycyclic aromatic hydrocarbons in stormwater detention pond sediments of Coastal South Carolina, USA

Screening-level ecological and human health risk assessment of polycyclic aromatic hydrocarbons in stormwater detention pond sediments of Coastal South Carolina, USA

Coal tar in Hamilton Harbour?Attempts at biological restoration guidelines

The Effects of Small Dam Removal on the Distribution of Sedimentary Contaminants

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