An official website of the United States government
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.
 Image Number D2218-1 |
To accurately determine the total PM10 and PM2.5 emissions from a cotton gin in west Texas, ARS biological science aids Arnold Gomez and Bud Welch directly sample exhaust from the gin’s many cyclones. Samples are then brought back for processing in the ARS Air Quality Laboratory in Lubbock.
Photo by Derek Whitelock.
