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The direct and indirect impact of the air quality on the Covid-19 mortality rate in different age classes.
| Air Quality | Elderly |
Middle Age |
Adulthood |
Children |
|||||
|---|---|---|---|---|---|---|---|---|---|
| Direct | Indirect | Direct | Indirect | Direct | Indirect | Direct | Indirect | ||
| Covid-19 mortality rate | NO2 | 3.10% | 2.04% | 2.80% | 1.85% | 2.10% | 1.42% | 2.90% | 1.97% |
| PM2.5 | insignificant | 2.10% | insignificant | 1.91% | insignificant | 1.47% | insignificant | 2.04% | |
| PM10 | insignificant | 1.92% | insignificant | 1.75% | insignificant | 1.35% | insignificant | 1.88% | |
