From: Rule design and status quo evaluation on cross-industrial wastewater emissions trading in China’s typical industrial sectors
I
II
III
IV
V
COD
P
0%
47.1%
11.8%
23.6%
17.7%
44.2%
40.4%
1.4%
14%
NH3-N
37.5%
25%
12.5
40.1%
24.4%
7.5%
28.1%