Yamuna is a little bit cleaner

THE Yamuna river is showing some signs of improvement in its water quality. The levels of biological oxygen demand (BOD) in the Najafgarh drain evidenced a notable reduction of 33 percent, compared to the previous year, in May 2023. A lower BOD level signifies a decrease in organic pollutants and an overall healthier aquatic environment.

This drain contributes to approximately 70 percent of the wastewater discharge into the Yamuna in Delhi. The BOD value at Kashmere Gate dipped from 55 milligrams of oxygen per litre (mg/l) in May 2022 to 38 mg/l in May 2023. This indicates a positive trend in terms of improved water quality. However, the desirable value in a healthy river should be less than 3 mg/l. Therefore, a lot has to be done to see an appreciable improvement in water quality of the river. The most important step is to make all the Sewage Treatment Plants (STPs) functional and discharge fresh water into the river during the lean season.

Yamuna is a little bit cleaner

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