| Subject | English | Portuguese |
| environ. | area emission source | área fonte |
| environ. | area emission source | área de fontes emissoras |
| environ. | emission source | fonte |
| environ. | emission source | fonte de emissão |
| environ. | emission source | fonte emissora |
| environ. | emission source A chemical process, building, furnace, plant or other entity responsible for the discharge of pollutants or contaminants into the environment | fontes de emissão |
| environ. | local emission source | fonte local |
| el. | source of emission | fonte de emissão |
| environ. | source of emission | fonte emissora |
| environ. | source of emission | fonte |