. "5 Data Systems and Opportunities for Advances." Environmental Epidemiology, Volume 2: Use of the Gray Literature and Other Data in Environmental Epidemiology. Washington, DC: The National Academies Press, 1997.
Ambient concentrations, emissions, and compliance data for airborne criteria pollutants
Microbiology and residue computer information system
Contaminant data from samples of meat and poultry at slaughtering establishments and from import shipments
Information for tracking the permit, compliance, and enforcement of permittees under the Clean Water Act
Response Epidemiologic Studies
Health assessments (ATSDR)
ATSDR assessments to identify potential health concerns among populations living near National Priority List sites
Indoor air study
A pilot project to assess contaminants in indoor air
broad and systematic collections of data on biologic markers in the general population are few, and surveys have yielded little information with which to characterize the subjects' exposures. Direct measures of internal dose are not usually included in health-assessment studies (conducted by ATSDR) or health-hazard evaluations (conducted by NIOSH), but these sources could be modified to include internal-dose assessments.
ATSDR conducts public-health assessments to determine where, and for whom, public-health actions should be undertaken (ATSDR, 1992). Each assessment characterizes the nature and extent of hazards and identifies communities where public-health actions are needed. However, the assessment is largely or entirely a compilation and analysis of existing data, which rarely include internal doses of toxicants in the population of concern. The health-assessment format does not require the collection of