From: Case control study of the geographic variability of exposure to disinfectant byproducts and risk for rectal cancer
Bromoform
Bromodichloro-methane
Chloroform
Chlorodibromo-methane
Total 551
Mean
1.30
8.72
19.75
4.11
35.07
Median
0.45
8.48
17.61
3.80
33.00