How Does COD Relate to Biological Oxygen Demand (BOD)?
Chemical Oxygen Demand is often compared to Biological Oxygen Demand (BOD), another key parameter in water quality assessment. While COD measures the total oxygen demand of all oxidizable substances, BOD specifically measures the oxygen required by microorganisms to decompose organic matter. COD is typically higher than BOD as it includes both biodegradable and non-biodegradable substances. The ratio of COD to BOD can provide insights into the nature of the pollutants present.
