index of a water contamination by the organic compounds determined by a quantity of oxygen that was taken per a time unit (usually 5 days – BCO5) at the acidification of pollutants contained in a fix volume of water.
«Biological consumption of oxygen (BCO)» boʻyicha 1 ta natija: Ruschaga
index of a water contamination by the organic compounds determined by a quantity of oxygen that was taken per a time unit (usually 5 days – BCO5) at the acidification of pollutants contained in a fix volume of water.