| 2 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 1 | Good | NO2 | NO2 | None | None |
| 12 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 2 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 1 | Good | NO2 | NO2 | None | None |
| 17 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 2 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 5 | Good | NO2 | NO2 | None | None |
| 24 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 2 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 6 | Good | NO2 | NO2 | None | None |
| 24 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 2 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 7 | Good | NO2 | NO2 | None | None |
| 25 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 2 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 4 | Good | NO2 | NO2 | None | None |