It is the dissolved oxygen required by organisms for the aerobic decomposition of organic matter present in water. The data used for the purposes of this rating should be measured at 20°C and for a period of 5 days (BOD5).
It is the dissolved oxygen required by organisms for the aerobic decomposition of organic matter present in water. The data used for the purposes of this rating should be measured at 20°C and for a period of 5 days (BOD5).
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