Bioaccumulation of persistent organic pollutants in lichen-caribou-wolf food chains of Canada's central and western Arctic

Article Abstract:

Samples from lichen, willow leaves, caribou, and wolves are taken from Canada's Arctic region to determine the bioaccumulation of first generation POPs in the Arctic ecosystem. The authors claim that current limits on toxic emissions are insufficient because of instinces of biomagnification of POPs in the food chain.

Environmental aspects, Wolves, Caribou, Lichens, Northern Canada

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Chlorothalonil and its 4-hydroxy derivative in simple quartz sand soils: a comparison of sorption processes

Article Abstract:

The following experiment examined quartz sandy soils from North Carolina and Simcoe, Ontario, Canada, and found that the chlorothalonil sorption properties were almost the same.

United States, Analysis, Soils, Soil analysis, Soil absorption and adsorption, Absorption, Soil science

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Development and verification of a benthic/pelagic food web bioaccumulation model for PCB cogeners in Western Lake Erie

Article Abstract:

A benthic/pelagic food web bioaccumulation model was developed using data accumulated from Western Lake Erie. The model was designed to derive chemical concentration estimates from filter-feeding and detritovorous benthic invertebrates, zooplankton, phytoplankton, and fish. Data on PCB concentrations in the lake was used to test the model.

Industrial Organic Chemicals, Polychlorinated Biphenyls, Cyclic Crude and Intermediate Manufacturing, Models, Food chains (Ecology), Food chains, Bioaccumulation, Lake Erie

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