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Table 5 Average difference values from pollutants transaction at different trading levels

From: Rule design and status quo evaluation on cross-industrial wastewater emissions trading in China’s typical industrial sectors

Unit
\(\times 10^{ - 2}\)
CODeCODaCODdPetroNH3-NVPCN-CrAsPbCdHg
\(\delta_{i}^{\text{I}}\)56.811.610.213.310.812.320.120.16.465.221.0719.7
\(\delta_{i}^{{\text{II}}}\)25.114.519.313.916.28.468.6710.111.110.67.6216.4
\(\delta_{i}^{{\text{III}}}\)03.5318.318.826.719.110.817.89.819.947.418.3
\(\delta_{i}^{{\text{IV}}}\)01.9913.311.67.923.432.011.596.027.053.8311.2
\(\delta_{i}^{\text{V}}\)00.4313.56.963.720.990.70.4311.370.462.06