#294430
Nuair nach bhfuil sonraí dá leithéid ar fáil, meastar go léiríonn cóimheas BOD(5 lá)/COD > 0,5 díghrádú tapa.
Where such data are not available, a BOD(5 days)/COD ratio ≥ 0,5 is considered as indicative of rapid degradation.
Nuair nach bhfuil sonraí dá leithéid ar fáil, meastar go léiríonn cóimheas BOD(5 lá)/COD > 0,5 díghrádú tapa.
Where such data are not available, a BOD(5 days)/COD ratio ≥ 0,5 is considered as indicative of rapid degradation.