| 1 | Good | NO2 | NO2 | None | None |
| 20 | Good | Ozone | Ozone | None | Children and people with asthma are the groups most at risk. |
| 1 | Good | NO2 | NO2 | None | None |
| 19 | Good | Ozone | Ozone | None | Children and people with asthma are the groups most at risk. |
| 1 | Good | NO2 | NO2 | None | None |
| 19 | Good | Ozone | Ozone | None | Children and people with asthma are the groups most at risk. |
| 2 | Good | NO2 | NO2 | None | None |
| 18 | Good | Ozone | Ozone | None | Children and people with asthma are the groups most at risk. |
| 4 | Good | NO2 | NO2 | None | None |
| 12 | Good | Ozone | Ozone | None | Children and people with asthma are the groups most at risk. |
| 3 | Good | NO2 | NO2 | None | None |