Test methods are approved procedures for measuring the presence and concentration of physical and chemical pollutants, evaluating properties such as toxic properties of chemical substances, and measuring the effects of substances under various conditions. The EPA has formulated hundreds of test methods that must be used by U.S. labs. Test methods are made available to the scientific and regulated communities in several ways, including the Code of Federal Regulations, the Technology Transfer Network and through EPA publications.

Recommended EPA Web pages

• Test Method Collections
  Specific test methods and procedures as well as an index for materials not in electronic format.
• Models, Methods, and Databases
  Links to various Office of Research and Development models, methods and databases.

Laboratories

Models
Air Models, Emission Factor Models, Exposure Assessment Models, Livestock Analysis Models, Mass Balance Models, Multimedia Integrated Models, Risk Models, Water Models

Monitoring
Biomonitoring, Monitoring Stations, Monitoring Wells, Remote Sensing, Sampling

Research Grants

Research Publications

Risk Assessment

Technology Transfer

Test Methods
Drinking Water Methods, Marine Water Methods