An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Potassium cyanide Results - AEGL Program

Potassium cyanide 151-50-8   04/01/15   (Final)
  10 min 30 min 60 min 4 hr 8 hr
(mg/m3)
AEGL 1 6.6 mg/m3 6.6 mg/m3 5.3 mg/m3 3.5 mg/m3 2.7 mg/m3
AEGL 2 45 mg/m3 27 mg/m3 19 mg/m3 9.3 mg/m3 6.6 mg/m3
AEGL 3 72 mg/m3 56 mg/m3 40 mg/m3 23 mg/m3 18 mg/m3

NOTE THAT VALUES ARE IN mg/m3, NOT ppm.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.