Air quality
| Barrie | 3 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Belleville | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Brampton | 2 Low Risk | 3 Low Risk | 3 Low Risk | 2 Low Risk | 3 Low Risk |
| Brantford | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Burlington | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Chatham | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Cornwall | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Dorset | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Grand Bend | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Guelph | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Hamilton | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Kingston | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Kitchener | 2 Low Risk | 3 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| London | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Milton | 3 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Mississauga | 2 Low Risk | 3 Low Risk | 3 Low Risk | 2 Low Risk | 3 Low Risk |
| Newmarket | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| North Bay | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Oakville | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Oshawa | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Ottawa | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Parry Sound | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Peterborough | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Port Stanley | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Sarnia | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Sault Ste. Marie | 1 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| St. Catharines | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Sudbury | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Thunder Bay | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Tiverton | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk |
| Toronto | 3 Low Risk | 3 Low Risk | 3 Low Risk | 2 Low Risk | 2 Low Risk |
| 3 Low Risk | 3 Low Risk | 3 Low Risk | 2 Low Risk | 2 Low Risk |
| 3 Low Risk | 3 Low Risk | 3 Low Risk | 2 Low Risk | 2 Low Risk |
| 2 Low Risk | 3 Low Risk | 3 Low Risk | 2 Low Risk | 2 Low Risk |
| 3 Low Risk | 3 Low Risk | 3 Low Risk | 2 Low Risk | 3 Low Risk |
| Windsor | 3 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 3 Low Risk |
| 3 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 3 Low Risk |
| 2 Low Risk | 2 Low Risk | 2 Low Risk | 2 Low Risk | 3 Low Risk |
This table shows a provincial summary of current Air Quality Health Index values and forecast maximums
Data source: Environment Canada