Table 3 Pollutant threshold ranges associated to selected levels for this study from the WHO guidelines.
From: Cardiac dyspnea risk zones in the South of France identified by geo-pollution trends study
Levels of pollution | NO2 (μg/m3) | O3 (μg/m3) | PM10 (μg/m3) |
|---|---|---|---|
Reference (very good) | 50 | 40 | 10 |
Good | 61–120 | 55–108 | 16–30 |
Moderate | 121–140 | 109–126 | 31–35 |
Lightly | 141–200 | 127–180 | 36–50 |
Heavily | > 200 | > 180 | > 50 |
