| Subject | English | Russian |
| tech. | self-clarification | самоочищение (водоёма или водотока) |
| tech. | self-clarification | самоосветление |
| construct. | self-clarification | самоочищение |
| hydr. | self-clarification | самоочищение (напр. водотока) |
| energ.ind. | self-clarification | самоочищение (напр., водоёма микроорганизмами) |
| Makarov. | self-clarification | самоочищение (внешней среды) |
| ecol. | water self-clarification | самоочищение вод |