Fig. 4
Comparison of original and revised national aggregation data from 1998 to 2015. (a) COD; (b) SO2; (c) NH3-N; (d) NOX. Discrepancies are shown in bars on the secondary axis.
Fig. 4 | Scientific Data
Comparison of original and revised national aggregation data from 1998 to 2015. (a) COD; (b) SO2; (c) NH3-N; (d) NOX. Discrepancies are shown in bars on the secondary axis.
