An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Common house dust may be an important source of a potentially dangerous class of chemicals called polybrominated diphenyl ethers (PBDEs), according to an...
A new database now available from the Commerce Department's National Institute of Standards and Technology will help measure airborne pollutants from...
Environmental scientists, research chemists, combustion engineers and process chemists can search for data on 9,200 chemical reactions in an expanded database...
NIST Standard Reference Database 46, NIST Critical Stability Constants of Metal Complexes, provides research chemists and chemical engineers with rapid access...
Everyone wants to measure ozone, or so it seems. Scientists are continually monitoring the ozone hole in the upper atmosphere. Weather reports often caution...