Table 3.
Cases Mean (SD) |
Controls Mean (SD) |
p | |
---|---|---|---|
DBPs water concentration | |||
Trihalomethanes (THMs), μg/L | |||
Chloroform | 43.6 (40.6) | 41.9 (40.3) | 0.26 |
Brominated THM | 6.2 (4.4) | 6.0 (3.9) | 0.47 |
Total THMs | 49.8 (39.9) | 47.9 (39.4) | 0.20 |
Haloacetic acids (HAAs), μg/L | |||
Dichloroacetic acid | 15.7 (15.1) | 15.3 (15.0) | 0.59 |
Trichloroacetic acid | 17.8 (21.2) | 17.0 (21.1) | 0.47 |
Total AAH (5 species)a | 36.6 (36.8) | 35.3 (36.7) | 0.47 |
Total AAH (9 species)b | 44.8 (37.4) | 43.5 (37.1) | 0.47 |
DBPs internal dose | |||
Trihalomethanes (THMs) multiexposure dose, μg/day | |||
Chloroform | 134.9 (149.8) | 132.7 (151.6) | 0.66 |
Brominated THM | 18.2 (16.9) | 18.4 (16.5) | 0.91 |
Total THM | 153.1 (152.5) | 151.0 (153.1) | 0.72 |
Haloacetic acids (HAAs) internal dose, μg/day | |||
Dichloroacetic acid | 14.5 (20.6) | 12.1 (19.2) | 0.007 |
Trichloroacetic acid | 16.2 (26.3) | 13.2 (25.6) | 0.005 |
Total AAHs (5 species)a | 34.0 (50.0) | 28.0 (46.7) | 0.005 |
Total AAHs (9 species)b | 41.2 (54.1) | 34.5 (50.7) | 0.006 |
HAA(5)=sum of the main five HAA species (DCAA, TCAA, monochloracetic acid, monobromacetic acid, dibromoacetic acid)
HAA(9) =sum of all HAA species
SD : Standard deviation