Non-carcinogens

Dirf /

Pb

1.4 ×10-3

Hg

3.0 ×10-4

Cu

4.0 ×10-2

Zn

3.0 ×10-1

NH3-N

9.7 ×10-1

NO3--N

1.6

Table 2: Coefficient of noncarcinogenic intensity.