| 4 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 7 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 10 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |
| 13 | Good | PM2.5 | PM2.5 | None | People with respiratory or heart disease, the elderly and children are the groups most at risk. |