| 3 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 20 | Good | NO2 | NO2 | None | None |
| 22 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 3 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 19 | Good | NO2 | NO2 | None | None |
| 21 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 3 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 13 | Good | NO2 | NO2 | None | None |
| 19 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 3 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 15 | Good | NO2 | NO2 | None | None |
| 18 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 3 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 13 | Good | NO2 | NO2 | None | None |
| 16 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 3 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 11 | Good | NO2 | NO2 | None | None |