TABLE 8.16 Water Saftey Levels for Aąuatic Life <Mg I'1)
Element |
Maximum level |
24 Hour mean |
As |
400 | |
Cd* |
1.5 |
0.012 |
Hg |
0.0017 |
0.00057 |
Pb* |
74 |
0.75 |
Se |
260 |
35 |
* Levels are a function of the hardness of water. Sources of data; Kirkan4 iester, 1984 [116], Smith, 1986 [195].