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Biological Oxygen Demand (BOD) is a measure of the oxygen used by microorganisms to decompose this waste. If there is a large quantity of organic waste in the water supply, there will also be a lot of bacteria present working to decompose this waste.
A BOD level of 1-2 ppm is considered very good. There will not be much organic waste present in the water supply. A water supply with a BOD level of 3-5 ppm is considered moderately clean. In water with a BOD level of 6-9 ppm, the water is considered somewhat polluted because there is usually organic matter present and bacteria are decomposing this waste. At BOD levels of 100 ppm or greater, the water supply is considered very polluted with organic waste.
A water supply with a Biological Oxygen Demand (BOD) level of 3-5 ppm is considered moderately clean. In water with a BOD level of 6-9 ppm, the water is considered somewhat polluted because there is usually organic matter present and bacteria are decomposing this waste.
Closer to zero, especially for canned water and stagnant water
According to WHO standard not more then 3-5ppm or 5-6ppm
Between 3 - 5 ppm is target for drinking water
Bioloical oxygen demand for drinking water is 3.5-6, more than 6 is not generally prefered
A bod level of 1TO2 ppm is considered very good.
A BOD level of 1-2 ppm is considered very good. There will not be much organic waste present in the water supply.
for safe drinking water it should be between 3-5 ppm
for safe drinking water BOD should be Nill (zero)
Biological Oxygen Demand in drinking water is 3 to 5 ppm
