Industry Rankings
| Rank | Name | PM2.5 - Particulate Matter <= 2.5 Micrometers |
|---|---|---|
| 1945 | Central Heating and Cooling Plant - University of Calgary | 1.12 |
| 1945 | Marshall - Richardson Pioneer Ltd. | 1.12 |
| 1945 | LRE - Eaglesham 01-25 - Long Run Exploration Ltd | 1.12 |
| 1954 | Pancosma Canada Inc. - Drummondville - Pancosma Canada Inc. | 1.11 |
| 1954 | ASPENLEAF 04-25-67-09W5 - Aspenleaf Energy Ltd. | 1.11 |
| 1954 | Northland Utilities Wekweeti - Northland Utilities (NWT) Limited | 1.11 |
| 1954 | Oerlikon Metco (Canada) Inc. - Fort Saskatchewan Operations - Oerlikon Metco (Canada) Inc. | 1.11 |
| 1954 | CONDILLO FOODS - AIRDRIE - Old Dutch Foods Ltd. | 1.11 |
| 1954 | BarretteBois - Roberval - BarretteBois inc | 1.11 |
| 1954 | Midale Terminal - Kingston Midstream Westspur Limited | 1.11 |
| Rank | Name | Province | City | PM2.5 - Particulate Matter <= 2.5 Micrometers | |
|---|---|---|---|---|---|
| 1945 | Central Heating and Cooling Plant - University of Calgary | Alberta | Calgary | 1.12 | |
| 1945 | Marshall - Richardson Pioneer Ltd. | Saskatchewan | Marshall East | 1.12 | |
| 1945 | LRE - Eaglesham 01-25 - Long Run Exploration Ltd | Alberta | Watino | 1.12 | |
| 1954 | Pancosma Canada Inc. - Drummondville - Pancosma Canada Inc. | Quebec | Drummondville | 1.11 | |
| 1954 | ASPENLEAF 04-25-67-09W5 - Aspenleaf Energy Ltd. | Alberta | Swan Hills | 1.11 | |
| 1954 | Northland Utilities Wekweeti - Northland Utilities (NWT) Limited | The Northwest Territories | Wekweeti | 1.11 | |
| 1954 | Oerlikon Metco (Canada) Inc. - Fort Saskatchewan Operations - Oerlikon Metco (Canada) Inc. | Alberta | Fort Saskatchewan | 1.11 | |
| 1954 | CONDILLO FOODS - AIRDRIE - Old Dutch Foods Ltd. | Alberta | Airdrie | 1.11 | |
| 1954 | BarretteBois - Roberval - BarretteBois inc | Quebec | Roberval | 1.11 | |
| 1954 | Midale Terminal - Kingston Midstream Westspur Limited | Saskatchewan | Midale | 1.11 |
