Table 3 Source identification using CO/NOx on four kinds of industrial factories

From: Space-based inversion reveals underestimated carbon monoxide emissions over Shanxi

Industrial sources

4-Year average ratios

CEMS grid numbers

Total grid numbers

Accuracy rate/ Identified proportion (%)

5th, 50th, 95th percentile

Chosen/right grid numbers

Cement

9.9, 14.6, 21.6

483/77

39

149

15.9/51.7

Power

9.2, 14.0, 19.9

455/183

90

269

40.2/68.0

Iron/steel

10.4, 18.0, 24.4

506/72

48

115

14.2/62.6

Coke

9.8, 16.4, 27.0

547/94

52

115

16.4/81.7

  1. Chosen grid numbers refer to the number of grids chosen based on the CO/NOx (central 90% confidence interval) for a given industrial type inside CEMS; right grid numbers refer to the subset of the chosen grids that were correctly identified of the given industrial type according to EP; accuracy rate refer to the proportion of accurately identified grids to the total chosen grids; indentified proportion refer to the proportion of accurately identified grids of the given industrial type according to EP.
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