What is chloroform?

What is chloroform?
Chloroform (CHCl3) is a colorless liquid that quickly evaporates into gas. It can harm the eyes, skin, liver, kidneys, and nervous system. Chloroform can be toxic if inhaled or swallowed. Exposure to chloroform may also cause cancer. Workers may be harmed from exposure to chloroform. The level of exposure depends upon the dose, duration, and work being done.

Chloroform is used in many industries. It is released from pulp and paper mills, hazardous waste sites, chlorinated water, and certain landfills. Chloroform is used in some refrigerants, solvents, and chemical manufacturing. Some examples of workers at risk of being exposed to chloroform include the following:

Workers involved in paper manufacture or recycle industries
Service employees exposed to some air conditioner refrigerants
Equipment operators working at sanitary landfills
Workers who work in water treatment plant
Technical information for chloroform
CAS Number: 67-66-3
Chemical Formula: CHCl3
Carcinogenicity (EPA): B2 – Probable human carcinogen.
MCL (Drinking Water): 0.07 mg/L (Maximum Contaminant Level Goal (MCLG) - The level of a contaminant in
drinking water below which there is no known or expected risk to health.)
OSHA Standards: 50 ppm (9.78 mg/m3
) (ceiling limit not to be exceeded at any time)
NIOSH Standards: 2 ppm (9.78 mg/m3
). (limited to 60-minute exposure)
ACGIH: 10 ppm, 8 hr Time Weighted Avg (TWA)
How is chloroform poisoning treated?
Persons exposed to chloroform should be removed from the source of exposure. Contact medical personnel
immediately for advice on further treatment.

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