- BOD is a measure of the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material present in a water sample. - A high BOD means there is a large amount of organic matter in the water. - Microbes (bacteria and other microorganisms) consume oxygen as they decompose this organic matter. - Therefore, high BOD signifies a high concentration of biodegradable organic pollution, which leads to high microbial activity and oxygen consumption.
High Biological Oxygen Demand (BOD) indicates
Asked in PPSC CS Prelims 2015 · Topic: Pollution (Water Pollution: Sources, common pollutants, water quality indicators (BOD, COD, DO), effects, control measures.)
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