Environmental Engineering Reference
In-Depth Information
Table 2. Potential ecological risk factors of 4 types of water bodies in China
Individual potential
ecological risk factor
E
i
f
Types
As
Grade
Cd
Grade
Cr
Grade
Cu
Grade
Lake
13.76
Slight
882
Very strong
2.84
Slight
8.9
Slight
River
42.99
Medium
1260
Very strong
3.42
Slight
26.01
Slight
Sea
22.57
Slight
1419
Very strong
3.81
Slight
11.75
Slight
Wetland
12.52
Slight
506
Very strong
2.82
Slight
11.98
Slight
Individual potential ecological risk factor
E
i
f
Types
Integrated potential ecological risk index
RI
Hg
Grade
Pb
Grade
Zn
Grade
RI
Grade
Lake
510
Very strong
7.59
Slight
1.78
Slight
1426
Stronger
River
526
Very strong
19.49
Slight
5.21
Slight
1883
Stronger
Sea
50.57
Medium
8.41
Slight
3.61
Slight
1520
Stronger
Wetland
90.86
Strong
8.49
Slight
1.97
Slight
635
Stronger
