Estimates of the proportion of chemicals that were carcinogenic or anticarcinogenic in bioassays conducted by the National Toxicology Program

Article Abstract:

Estimates of the fraction of chemicals that are carcinogenic or anticarcinogenic have been made in rodent bioassays conducted as part of the National Toxicology Program (NTP). Global patterns of p-values from statistical tests applied to individual experiments were used. Most chemicals will, at high enough doses, cause some kind of perturbation in tumor rates. As much evidence for anticarcinogenesis as for carcinogenesis was seen in the study and perhaps there was more. Estimates were that 85% of the chemicals were carcinogenic or anticarcinogenic at some site in some sex-species group.

Canada, Health aspects, Statistical Data Included, Research, Usage, Cancer research, Chemicals, Cancer, Rats, Databases, Carcinogens, Biological assay, Bioassay

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Toxicology: judge data or dollars?

Article Abstract:

The relationship between scientific research and the democratic process is examined, focusing on the right of the people to be informed about environmental research and the need to protect intellectual property and maintain high standards of information. Topics include freedom of information regulations under the 1999 Omnibus Spending Bill, the tension between demand for environmental policy and incomplete scientific studies, and professional and political biases in the scientific process.

Editorial, Political aspects, Environmental policy research

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Audit-privilege laws: the right to know nothing

Article Abstract:

The right of companies to insist on privacy of information gained through their own environmental audits, under self-audit privilege laws, is discussed, focusing on the points of views of citizen groups and corporations. Topics include the activities of a waste management firm in Ohio and an audit law enacted in Texas.

Social aspects, Refuse disposal industry, Waste management industry, Environmental policy, Hazardous waste management industry, Environmental law

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