Environmental Engineering Reference
In-Depth Information
Table 1. Potential ecological risk factors of 7 industrial districts in China
Individual potential ecological risk factor E i f
District
As
Grade
Cd
Grade
Cr
Grade
Cu
Grade
Dongbei
70.04
Medium
8882
Very strong
2.24
Slight
24.07
Slight
Huabei
11.19
Slight
985
Very strong
2.84
Slight
12.05
Slight
Huadong
18.4
Slight
204
Very strong
4.04
Slight
12.67
Slight
Huanan
23.43
Slight
1562
Very strong
3.23
Slight
24.26
Slight
Xibei
10.32
Slight
99.4
Strong
2.20
Slight
6.91
Slight
Huaxi
40.91
Medium
1080
Very strong
2.86
Slight
17.77
Slight
Huazhong
46.52
Medium
1439
Very strong
2.41
Slight
12.67
Slight
China
27.36
Slight
1246
Very strong
3.45
Slight
16.34
Slight
Integrated potential
ecological risk index RI
Individual potential ecological risk factor E i f
District
Hg
Grade
Pb
Grade
Zn
Grade
RI
Grade
Dongbei
162.3
Stronger
30.83
Slight
15.96
Slight
9188
Stronger
Huabei
1887
Very strong
13.22
Slight
3.60
Slight
2915
Stronger
Huadong
93.13
Strong
6.78
Slight
2.02
Slight
341
Strong
Huanan
87.7
Medium
11.47
Slight
4.72
Slight
1716
Stronger
Xibei
371.4
Very strong
5.72
Slight
1.39
Slight
497
Strong
Huaxi
159.7
Strong
18.83
Slight
4.18
Slight
1324
Stronger
Huazhong
335.3
Very strong
32.15
Slight
3.53
Slight
1872
Stronger
China
241.2
Stronger
12.25
Slight
3.75
Slight
1550
Stronger
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