assimilative capacity [ assimilatory capacity | waste assimilative capacity | waste assimilation capacity | assimilation potential | self-purifying ability | self-purifying capacity | stream purification capacity ]
capacité d'auto-épuration [ capacité d'autoépuration | pouvoir auto-épurant | pouvoir autoépurant | pouvoir d'autoépuration | pouvoir d'auto-épuration | capacité d'assimilation | capacité autonettoyante ]