Particles less than 2.5 um (PM25) (0)
| Extremely Poor |
| Very Poor |
| Poor |
| Moderate |
| Fair |
| Good |
| No Data |
Particles less than 10 um (PM10) (1)
|
| Extremely Poor |
|
| Very Poor |
|
| Poor |
|
| Moderate |
|
| Fair |
|
| Good |
|
| No Data |
Nitrogen dioxide (NO2) (2)
|
| Extremely Poor |
|
| Very Poor |
|
| Poor |
|
| Moderate |
|
| Fair |
|
| Good |
|
| No Data |
Ozone (O3) (3)
|
| Extremely Poor |
|
| Very Poor |
|
| Poor |
|
| Moderate |
|
| Fair |
|
| Good |
|
| No Data |
Sulphur dioxide (SO2) (4)
|
| Extremely Poor |
|
| Very Poor |
|
| Poor |
|
| Moderate |
|
| Fair |
|
| Good |
|
| No Data |
|