Atmospheric and Tributary Inputs of Toxic Substances to Lake Erie

Kelly, Thomas J.; Czuczwa, Jean M.; Sticksel, Philip R.; Sverdrup, G.M.; Koval, Paul J.; Hodanbosi, Robert F.

doi:10.1016/s0380-1330(91)71386-5

Cited by 32 publications

(7 citation statements)

References 52 publications

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“…1). Middle Sister Island is continuously exposed to organic contaminants from the Detroit River [23], but it is far from direct sources of PAH and PCB contamination. Thus, the contaminant distribution in the food web is assumed to reflect local processes.…”

Section: Sample Collectionmentioning

confidence: 99%

“…Western Lake Erie has recently received much attention due to changes, such as invasion of dreissenid mussels, that may be causing elevated biological exposure of organic contaminants to top predators because of increased benthic-pelagic coupling [22]. The major source of PAHs and PCBs into Lake Erie is through industrial processes along the Detroit River, USA [23], which is one of the more polluted aquatic ecosystems in the world. Approximately 73% of sediment-bound pollutants from the Detroit River entering Lake Erie are accumulated within the sediment of the western basin, resulting in potentially high levels of chemical exposure to the biota of this system [24].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of polycyclic aromatic hydrocarbon and polychlorinated biphenyl dynamics in benthic invertebrates of Lake Erie, USA

Gewurtz

Lazăr

Haffner

2000

Enviro Toxic and Chemistry

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Abstract-The distribution patterns of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) were determined in four benthic invertebrate species of western Lake Erie, USA, to assess and compare the processes governing the exposure dynamics of these two classes of contaminants. Significant differences in the sum of 17 PAH compounds were observed among the four species, with mayflies containing the highest PAH body burden, followed by dreissenid mussels, amphipods, and crayfish. For PCBs, mayflies contained significantly higher concentrations of the sum of 39 PCB congeners than the other organisms, and dreissenids had higher levels than crayfish. No significant differences were found in the ⌺PCB levels between dreissenids and amphipods or between amphipods and crayfish. For PCBs, the relationship between biota-sediment accumulation factors (BSAFs) and log K ow followed a parabolic pattern indicative of selective bioaccumulation. In contrast, BSAFs for PAHs were inversely related to log K ow , suggesting that metabolism of the higher K ow compounds was occurring. These results support the conclusion that mayflies and dreissenids play major roles in the transfer of PAHs and PCBs to upper trophic levels, and they demonstrate that the exposure dynamics of PAHs and PCBs are different in the benthic components of aquatic food webs.

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Section: Sample Collectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of polycyclic aromatic hydrocarbon and polychlorinated biphenyl dynamics in benthic invertebrates of Lake Erie, USA

Gewurtz

Lazăr

Haffner

2000

Enviro Toxic and Chemistry

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“…Although atmospheric deposition contributes to PAH input into Lake Erie, major sources are the out#ow of the Detroit River (Kelly et al, 1991) and other point sources of emission on the lake (Eadie et al, 1982;Metcalfe et al, 1997). Total PAHs in sediment of the Detroit River have been found in high concentrations (Furlong et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

Intact and Photomodified Polycyclic Aromatic Hydrocarbons Inhibit Photosynthesis in Natural Assemblages of Lake Erie Phytoplankton Exposed to Solar Radiation

Marwood

Smith

Solomon

et al. 1999

Ecotoxicology and Environmental Safety

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“…Mercury can enter an ecosystem through rain and snow. A model for this process is found in the literature [4].…”

Section: Wet Deposition Of Mercurymentioning

confidence: 99%

“…Dry deposition, especially industrial output into the atmosphere, provides another avenue of entry for mercury. The literature, [4], again provides a model.…”

Section: Dry Deposition Of Mercurymentioning

confidence: 99%

The Bioaccumulation of Methylmercury in an Aquatic Ecosystem

Johns¹,

Kurtzman²,

Shtasel-Gottlieb³

et al. 2011

Biomat 2010

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A model for the bioaccumulation of methyl-mercury in an aquatic ecosystem is described. This model combines predator-prey equations for interactions across three trophic levels with pharmacokinetic equations for toxin elimination at each level. The model considers the inflow and outflow of mercury via tributaries, precipitation, deposition and bacterial methylation to determine the concentration of toxin in the aquatic system. A sensitivity analysis shows that the model is most sensitive to the rate of energy transfer from the first trophic level to the second. Using known elimination constants for methyl mercury in various fish species and known sources of input of methyl mercury for Lake Erie, the model predicts toxin levels at the three trophic levels that are reasonably close to those measured in the lake. The model predicts that eliminating methyl mercury input to the Lake from two of its tributary rivers would result in a 44 percent decrease in toxin at each trophic level.

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Atmospheric and Tributary Inputs of Toxic Substances to Lake Erie

Cited by 32 publications

References 52 publications

Comparison of polycyclic aromatic hydrocarbon and polychlorinated biphenyl dynamics in benthic invertebrates of Lake Erie, USA

Comparison of polycyclic aromatic hydrocarbon and polychlorinated biphenyl dynamics in benthic invertebrates of Lake Erie, USA

Intact and Photomodified Polycyclic Aromatic Hydrocarbons Inhibit Photosynthesis in Natural Assemblages of Lake Erie Phytoplankton Exposed to Solar Radiation

The Bioaccumulation of Methylmercury in an Aquatic Ecosystem

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