An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Homeland Security Research



EPA's Homeland Security Research Program provides science and technology needed to effectively respond to, and recover from, intentional or accidental  environmental catastrophes. Natural or manmade disasters can result in pollution that threatens human health, the environment and our economy. The United States is regularly affected by such disasters. Communities must be resilient to such catastrophes. Resilience requires scientific information to support good decisions.