| 5 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 25 | Good | NO2 | NO2 | None | None |
| 5 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 23 | Good | NO2 | NO2 | None | None |
| 5 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 22 | Good | NO2 | NO2 | None | None |
| 5 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 20 | Good | NO2 | NO2 | None | None |
| 3 | Good | CO | CO | None | People with heart disease are the group most at risk. |
| 20 | Good | NO2 | NO2 | None | None |
| 3 | Good | CO | CO | None | People with heart disease are the group most at risk. |