An official website of the United States government.

Sulfur Dioxide Results - AEGL Program

Sulfur Dioxide      7446-09-5     (Final)
  10 min 30 min 60 min 4 hr 8 hr
ppm
AEGL 1 0.20 0.20 0.20 0.20 0.20
AEGL 2 0.75 0.75 0.75 0.75 0.75
AEGL 3 30 30 30 19 9.6
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.