Pollution watchdog CPCB seeks solution to high ammonia content in Yamuna within 1 month

The study group will review the current monitoring protocol and requirement of strengthening monitoring mechanism, analyse past data and carry out field surveys to identify hotspots of high ammonia.

The Central Pollution Control Board (CPCB) has constituted a study group to suggest solutions for increase in ammoniacal nitrogen in the Yamuna. The study group will comprise of Delhi Jal Board (DJB), Haryana State Pollution Control Board, Delhi Pollution Control Committee, Irrigation and Water Resources departments of Haryana and Delhi.

CPCB convened a meeting on January 4, with the officials of Delhi and Haryana to discuss the recurring issue of increase in Ammoniacal Nitrogen in the Yamuna and short and long term remedial actions required. (AFP PHOTO.)

The group will review the current monitoring protocol and requirement of strengthening monitoring mechanism, analyse past data and carry out field surveys to identify hotspots of high ammonia.

The study group has been asked to submit its report within a month.

CPCB convened a meeting on January 4, with the officials of Delhi and Haryana to discuss the recurring issue of increase in Ammoniacal Nitrogen in the Yamuna and short and long term remedial actions required.

It was agreed at the meeting to constitute a joint surveillance squad comprising DJB, DPCC, Irrigation and Flood Control Departments of Delhi and Haryana.

Officials said the possible reasons for high ammoniacal nitrogen could be discharge of untreated sewage from upstream towns in Haryana, discharge from industrial units, common effluent treatment plants (CETPs), sewage treatment plants (STPs), illegal discharge of sewage from unsewered colonies in outer Delhi through tankers, lean flow in the Yamuna and anaerobic decomposition of accumulated sludge on the riverbed.

Ammonia is one of several forms of nitrogen that exist in aquatic environments. Unlike other forms of nitrogen, which can cause nutrient over-enrichment of a water body at elevated concentrations and indirect effects on aquatic life, ammonia causes direct toxic effects on aquatic life according to the US Environment Protection Agency. Ammonia is mainly produced for commercial fertilizers and other industrial applications.