air pollution (thing)

Pollutant...........................Safe Exposure (8 h/day, 5 days/wk)
Asbestos..............................0.2 fiber/cm3 ** 
Benzene...............................0.3  mg/m3** 
Bromine...............................0.66 mg/m3
Cadmium...............................0.002 mg/m3
Carbon Dioxide........................9,000 mg/m3
Carbon Disulfide......................31 mg/m3
Carbon Monoxide.......................29 mg/m3
Carbon Tetrachloride..................31 mg/m3***
Chlorine..............................1.5 mg/m3
Chloroform............................49 mg/m3*
Cresol................................22 mg/m3
Ethyl Alcohol (ethanol)...............1,880 mg/m3
Fluorine..............................1.6 mg/m3
Formaldehyde..........................0.37 mg/m3*
Gasoline..............................890 mg/m3
Hydrogen Cyanide......................11  mg/m3
Iodine................................1 mg/m3
Iron Oxide (fume).....................5 mg/m3
Isopropyl Alcohol.....................980 mg/m3
Lead (dust & fume)....................0.2 mg/m3
Manganese.............................0.2 mg/m3
Mercury...............................0.01 mg/m3
Methyl Alcohol (Methanol).............260 mg/m3
Nitric Oxide..........................30 mg/m3
Nitrogen Dioxide......................5.6 mg/m3
Propane...............................simple asphyxiant
Selenium..............................0.2 mg/m3
Sulfur Dioxide........................5.2 mg/m3
Sulfuric Acid.........................1 mg/m3
Tellurium.............................0.1 mg/m3
Tetraethyl lead.......................0.1 mg/m3
Toluene...............................188 mg/m3
Turpentine............................560 mg/m3
Vinyl Chloride........................13 mg/m3**
Zinc Oxide (fume).....................5 mg/m3


*   Suspected Human Carcinogen (1993)

** Confirmed Human Carginogen (1993)

*** Animal Carcinogen (1993)


source: American Industrial Hygiene Association: 1993