| 2 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 1 | Good | NO2 | NO2 | None | None |
| 23 | 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. |
| 2 | Good | NO2 | NO2 | None | None |
| 27 | 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. |
| 2 | Good | NO2 | NO2 | None | None |
| 28 | 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. |
| 2 | Good | NO2 | NO2 | None | None |
| 31 | 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 |
| 36 | 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. |
| 3 | Good | NO2 | NO2 | None | None |