Chemistry Reference
In-Depth Information
TABLE 7.1
Occupational Exposure Limits
Occupational Safety and
Health Administration
(OSHA 2006)
American Conference of Governmental
Industrial Hygienists (ACGIH 2009)
National Institute for Occupational
Safety and Health (NIOSH 2005)
Chemical
Abstracts
Service Registry
Number
(CASRN)
Threshold Limit
Values-Time Weighted
Average (TLV-TWA)
Recommended
Exposure Limits
(RELs)
Chemical
Name
Permissible Exposure
Limits (PELs)
Critical Effects
Target Organs
Aluminum,
metal
7429-90-5
1 mg/m
3
Pneumoconiosis; lower
respiratory tract
irritation; and
neurotoxicity
15 mg/m
3
(total dust)
15 mg/m
3
(respirable
fraction)
Eyes, skin,
respiratory system
15 mg/m
3
(total dust)
5 mg/m
3
(respirable
fraction)
Antimony and
compounds
7440-36-0
0.5 mg/m
3
Skin and upper
respiratory tract
irritation
0.5 mg/m
3
Eyes, skin,
respiratory system,
cardiovascular
system
0.5 mg/m
3
Arsenic
7440-38-2
0.01 mg/m
3
Lung cancer
0.5 mg/m
3
Carcinogen
Liver, kidneys, skin,
lungs, lymphatic
system
0.01 mg/m
3
(inorganic
compounds)
0.5 mg/m
3
(organic
compounds)
Barium and
compounds
7440-39-3
0.5 mg/m
3
Eye, skin, and
gastrointestinal
irritation; muscular
stimulant
0.5 mg/m
3
—
0.5 mg/m
3
(soluble
compounds)
