1Toksyczność Me odÚwki
THE TOXICITY OF HEAVY ELEMENTS TO HUMAŃ BEINGS
(b) Toxic element*
Fig. 15.1 The relationship between health response and the concentrations o f the elements, (a) essential elements, (b) toxic elements.
(a) Essential elements
Deficient Toxic
TABLE 15.4 Apparent Stability Constants for Mercury, Cadmium, and Lead for Different Biochemical Groups
|
Group |
Log K (pH |
= 7) | |
|
Hg |
Cd |
Pb | |
|
Carboxyl |
5.6 |
1.8 |
1.9 |
|
Amino |
6.0 |
0.3 |
-0.5 |
|
Imidazole |
3.7 |
2.7 |
2.2 |
|
Thiol |
10.2 |
5.6 |
4.9 |
|
Fhosphate |
- |
2.7 |
t 3.1 |
|
Chloride |
7.3 |
2.0 |
1.6 |
Source of data; Kagi and Hapke, 1984 [55].
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