Asthma research at NIEHS
Learn about studies sponsored by the National Institute of Environmental Health Sciences. The website also provides allergy prevention information, and links to more than a half dozen organizations engaged in related research and prevention.

Asthma mortality maps
The National Heart, Lung and Blood Institute reports disparities in asthma mortality rates in hundreds of communities in the United States. Maps allow the user to seek data by state, county and city.

Community Health Status Indicators
The U.S. Health Resources and Services Administration offers detailed health statistics for 3,082 counties, and compares the results with "peer" counties.

Emerging Infectious Diseases Journal
The Centers for Disease Control publishes this peer-reviewed journal to help professionals identify new and re-emerging diseases around the world.

Material Safety Data Sheets
The University of Vermont supplies a web-based directory of material safety data sheets and chemical toxicity information.

Scorecard
The Environmental Defense Fund, at its Scorecard website, ranks and compares the pollution situation in areas across the United States.