| Subject | English | Spanish |
| environ. | diffuse pollution source | fuente de contaminación difusa |
| environ. | diffuse pollution source | fuente difusa de contaminación |
| UN, ecol. | diffuse source | fuente no localizada |
| environ. | diffuse source | fuente difusa |
| environ. | diffuse source | fuentes difusas |
| environ. | diffuse source Pollution which arises from various activities with no discrete source | fuente difusa |