<span style="color: #222222;">A study group comprising Delhi Jal Board, Haryana State Pollution Control Board, Delhi Pollution Control Committee, Irrigation and Water Resources Department, Haryana, Irrigation and Flood Control Department, Delhi has been constituted on the issue of increase in Ammonical Nitrogen in River Yamuna.</span><br />'' <br />'' <span style="color: #222222;">The group will review uniform monitoring protocol and requirement of strengthening monitoring mechanism, analyse past data and carry out field survey to identify critical hotspots as well as period of high ammonia levels. It has also been asked to suggest short and long term measures for sustained solutions, and submit its report within a month.</span><br />'' <br />'' <span style="color: #222222;">The Central Pollution Control Board, CPCB convened a meeting on Monday with the officials of Delhi Pollution Control Committee, Haryana State Pollution Control Board, Delhi Jal Board, Irrigation and Water Resources Department, Haryana and Irrigation and Flood Control Department, Delhi, to discuss the issue.</span><br />'' <br />'' <span style="color: #222222;">The long deliberations on the issue identified and agreed that possible reasons could be discharge of untreated sewage from upstream towns in Haryana, discharge from industrial units, Common Effluent Treatment Plants and Sewage Treatment Plants, illegal discharge of sewage from unsewered colonies in outer Delhi through tankers, lean flow in the River Yamuna and anaerobic decomposition of accumulated sludge on river bed.</span><br />'' <br />'' <span style="color: #222222;">A Joint Surveillance Squad will also be constituted comprising of Delhi Pollution Control Committee, Haryana State Pollution Control Board, Delhi Jal Board, Irrigation and Water Resources Department, Haryana and Irrigation and Flood Control Department, Delhi.</span><br />