index | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
pm25 | 20 (Moderate) | 25 (Moderate) | 17 (Moderate) | 8.2 (Good) | 9 (Good) | 8.6 (Good) | 11 (Good) | 11 (Good) | 22 (Moderate) | 19 (Moderate) | 29 (Moderate) | 35 (Moderate) |
pm10 | 22 (Moderate) | 29 (Moderate) | 22 (Moderate) | 15 (Good) | 17 (Good) | 19 (Good) | 20 (Moderate) | 15 (Good) | 33 (Moderate) | 24 (Moderate) | 34 (Moderate) | 39 (Moderate) |
no2 | 13 (Good) | 14 (Good) | 12 (Good) | 9.2 (Good) | 8.3 (Good) | 7.1 (Good) | 6.6 (Good) | 8 (Good) | 12 (Good) | 8.4 (Good) | 15 (Good) | 16 (Good) |