Evaluating toxic impact assessment methods: what works best?

Article Abstract:

Four methods namely toxicity-based scoring, sustainable process index, concentration/toxicity equivalency and human toxicity potential were compared to determine their usefulness in assessing human health impacts of chemical emissions. Results revealed that human toxicity potential method proved most useful in comparing toxic emissions because it ideally ranks pollutants on the basis of health risks.

Chemical Manufacturing, Toxic Chemical Wastes, Methods, Risk assessment, Hazardous substances, Hazardous substances risk assessment, Hazardous wastes, Chemical wastes

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Prediction of chemical biotransfer of organic chemicals from cattle diet into beef and milk using the molecular connectivity index

Article Abstract:

The molecular connectivity index (MCI) is offered as a predictor of chemical biotransfer (BTF) of organic chemicals from cattle diet into beef and milk. MCI can predict BTFs more easily and quickly than a measure of lipid/water solubility. Statistical comparison of model reliability linked to Kow and MCI as BTF predictors proves that MCI can be a more reliable BTF predictor than Kow.

Research, Biological transport, Chemical processes

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Steady-state bovine tissue biotransfer factors

Article Abstract:

Research was done at SEC Donohue Inc on steady-state oral exposure biotransfer factors for six metals. Factors were calculated for three bovine tissue types: muscle, liver and kidney. Cadmium and mercury showed the greatest potential for bioaccumulation. Kidney tissue displayed the greatest potential for retaining high levels of cadmium, lead and mercury.

Environmental aspects, Metals, Metals (Materials), Cattle, Food chains (Ecology), Food chains

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