Pollutants |
Limiting pathway |
Pollutant limit
mg kg-1 |
Conc. in sludge, µg kg-1 |
1970s† |
1980s‡ |
Aldrin/Dieldrin |
Adult eating animal products |
2.7 |
6.4 (16%)¶ |
1.9 (3%) |
Benzo(a)pyrene |
Child eating biosolids |
15 |
138 (21%) |
- (3%) |
Chlordane |
Child eating biosolids |
86 |
6.4 (16%) |
- (3%) |
DDT§ |
Adult eating fish/drinking water |
120 |
- (0%) |
- (0%) |
Heptachlor |
Adult eating animal products |
7.4 |
6.4 (16%) |
- (0%) |
Hexachlorobenzene |
Adult eating animal products |
29 |
155 (16%) |
- (0%) |
Hexachlorobutadiene |
Adult eating animal products |
600 |
23 (5%) |
- (0%) |
Lindane |
Child eating biosolids |
84 |
6.4 (16%) |
- (0%) |
Dimethylamine |
Child eating biosolids |
2.1 |
57 (5%) |
- (0%) |
Toxaphene |
Adult eating animal products |
10 |
6.4 (16%) |
- (0%) |
Trichloroethylene |
Child eating biosolids |
10000 |
8139 (84%) |
- (1%) |