Environment
US Environmental Protection Agency The mission of the Environmental Protection Agency is to protect human health and the environment. Since 1970, EPA has been working for a cleaner, healthier environment for the American people.
US Geological Survey Acid Rain Site: National Atmospheric Deposition Program - The purpose of the network is to collect data on the chemistry of precipitation for monitoring of geographical and temporal long-term trends.
Revised on: 23 August, 2006
