OSHA Substance-Specific Laboratory Air Standards

Action Levels and PELs for 25 CARCINOGENS
Listed in 29 CFR 1910.1001 through 1910.1048

SUBSTANCE	*Action Level (ppm) or if asterisked, in the units indicated**	*PEL (ppm) or if asterisked, as mg/m3**
2-acetylaminofluorene	-	-
acrylonitrile	1.0	2.0
4-aminobiphenyl	-	-
arsenic, inorganic	5.0 ug/m3*	0.01*
asbestos		0.1
benzene	0.5	1.0
benzidine	-	-
bis-chloromethyl ether	-	0.001
coal tar pitch volatiles	-	0.2*
coke oven emissions	-	0.15*
cotton dust, raw	-	1.0*
1,2-dibromo-3-chloropropane	-	0.001
3,3-dichlorobenzidine	-	-
4-dimethylaminoazobenzene	-	-
ethyleneimine	-	0.5
ethylene oxide	0.5	1.0
formaldehyde	0.5	0.75
lead ('lead' means metallic lead, as either a dust or vapor, all inorganic lead compounds, and lead soaps)	30 uG/m3 *	0.05*
methyl chloromethyl ether	-	-
methylene chloride	12.5	25
alpha-naphthylamine	-	-
beta-naphthylamine	-
4-nitrobiphenyl	-
N-nitrosodimethylamine	-	-
beta-propiolactone	-	0.5
vinyl chloride	0.5	1.0