http://www.atsdr.cdc.gov/tfacts6.html#bookmark03
What happens to chloroform when it enters the environment?
Chloroform evaporates easily into the air.
Most of the chloroform in air breaks down eventually, but it is a slow process.
The breakdown products in air include phosgene and hydrogen chloride, which are both toxic.
It doesn't stick to soil very well and can travel through soil to groundwater.
Chloroform dissolves easily in water and some of it may break down to other chemicals.
Chloroform lasts a long time in groundwater.
Chloroform doesn't appear to build up in great amounts in plants and animals.
(phosgene and hydrogen chloride are both gasses, checking for residue)
http://www.dshs.state.tx.us/lab/mrs_en_test_air.htm#Formaldehyde
Volatile Organics in Air
1,1,1-Trichloroethane, 1,2,4-Trimethylbenzene, 1,4-Dichlorobenzene, 1,4-Dichlorobenzene, 2-Ethoxy ethyl acetate, 2-Heptanone, 2-Propanol, Acetone, Benzene, Butoxy ethanol, Butyl acetate, Cumene (isopropyl benzene), Cyclohexane, Cyclohexanone, Ethanol, Ethyl acetate, Ethyl methacrylate, Ethylbenzene, Heptane, Chloroform, Hexachloroethane, iso-Butanol, Isoamyl acetate, Limonene, m/p-Xylene, Methyl ethyl ketone (MEK), Methyl isobutyl ketone, Methyl methacrylate, n-Propyl acetate, Naththalene, o-Xylene, Phenol, alpha-Pinene, sec-Butanol, Styrene, Tetrachloroethylene, Tetrahydrofuran, Toluene, Trichloroethylene Matrix
Air sample/ Charcoal tube
Method
NIOSH 1500 Volatiles in air
Sample Size Container
Charcoal tube
Preservation
25° C
Holding Time
14 days
Fee
135.00