Yamuna pollution remains severe in Delhi despite improvement at some points

The article, published May 8, 2026, summarizes the DPCC's April 2026 data, noting improvements at some points but that faecal coliform and BOD levels remain alarmingly high, and highlighting DPCC's drain data and ongoing data gaps for STPs/CETPs.

The April 2026 DPCC data show slight faecal coliform improvements at four locations but levels remain above the permissible limit of 2,500 MPN/100 ml and well above the desirable 500 MPN/100 ml. At Asgarpur, faecal coliform fell to 310,000 MPN/100 ml; Palla to 2,800; Hindon Cut to 54,000; Okhla Barrage to 120,000. Wazirabad rose to 9,200; ISBT Bridge to 170,000; ITO Bridge to 150,000; Nizamuddin Bridge to 140,000. April BOD values ranged from 3 to 58 mg/L, with Asgarpur at 58 mg/L (the highest); March’s Asgarpur BOD was 60 mg/L. The DPCC also uploaded the April drains data, while April analysis of STPs and CETPs had not yet been uploaded. Wastewater quality in drains discharging into the Yamuna and Najafgarh drains showed high BOD and COD levels.

In March 2026, the following faecal coliform levels were reported across locations: Asgarpur 400,000 MPN/100 ml; Palla 3,200 MPN/100 ml; Hindon Cut 80,000 MPN/100 ml; Okhla Barrage 200,000 MPN/100 ml; Wazirabad 4,300 MPN/100 ml; ISBT Bridge 1,60,000 MPN/100 ml. Data for ITO Bridge and Nizamuddin Bridge in March were not specified in the report.

DPCC data show Asgarpur faecal coliform level at 92,000 MPN/100 ml in February 2026. The February figure follows January’s 350,000 MPN/100 ml and precedes March values reported in the April data.

DPCC data reported Asgarpur faecal coliform level at 350,000 MPN/100 ml in January 2026. The article lists eight sampling locations along the Yamuna but provides January figures only for Asgarpur at this time.