Table 3 Provinces that exceeded the WHO AQG threshold in the period 2014–2019.
Air pollutants | WHO AQG threshold | National averages | Provinces with long-term violations | Province with at least 1-year violation |
|---|---|---|---|---|
NO2 | 40 µg/m3 | 26.3279 | 11 | 15 |
O3 (8 h) | > 100 µg/m3 | 28.2256a | 95a | 95a |
PM2.5 | 10 µg/m3 | 15.3609 | 85 | 88 |
PM10 | 20 µg/m3 | 24.952 | 86 | 93 |
PM10 | > 50 µg/m3 | 25.1509 | 106 | 106 |
Benzene | No safe level | 1.2069 | – | – |
BaP | No safe level | 0.4363 | – | – |
As | No safe level | 0.9559 | – | – |
Cd | 5 ng/m3 | 0.343 | 0 | 0 |
Ni | No safe level | 3.6301 | – | – |
