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Ammonia Levels in Yamuna Spike Again; Raghav Chadha Urges Pollution Control Board to Intervene

AAP MLA Raghav Chadha. (File photo/ANI)

AAP MLA Raghav Chadha. (File photo/ANI)

Ammonia concentration in the river at the Wazirabad barrage has increased to 7 ppm (parts per million) against the permissible limit of 0.8 ppm which is likely to affect the water supply, he said.

New Delhi: Haryana has not stopped discharging industrial pollutants into the Yamuna despite repeated reminders, Delhi Jal Board Vice-Chairman Raghav Chadha said on Tuesday as he urged the Central Pollution Control Board (CPCB) to take immediate remedial measures. Ammonia concentration in the river at the Wazirabad barrage has increased to 7 ppm (parts per million) against the permissible limit of 0.8 ppm which is likely to affect the water supply, he said.

"Discharge of industrial pollutants in Yamuna through Rohtak X-Regulator and DD6 has not stopped despite repeated reminders to the Haryana govt," Chadha said in a tweet. "Such irresponsible behaviour of Haryana govt adversely impacting the water supply in Delhi must be dealt with sternly," he added.

Chadha urged the CPCB and the Upper Yamuna River Board to take immediate cognisance of the "nonchalant" attitude of the Haryana government and take remedial measures. The DJB on Monday said water supply from Wazirabad, Chandrawal and Okhla water treatment plants would remain affected till the ammonia level in the river reduces to a treatable limit. These plants supply drinking water to Central, North, West and South Delhi.

The CPCB had earlier this month raised concerns over pollution and frothing in the river and asked Delhi, Haryana and Uttar Pradesh to ensure effective sewage treatment. According to a CPCB statement, the monitoring of 22 drains in Delhi has found 14 drains "untapped and discharging sewage".

In the past, the CPCB had observed froth formation and increase in ammonia levels in the Yamuna because of discharge of untreated sewage, non-operation of existing STPs, improper functioning of effluent treatment plants installed by the industries and common effluent treatment plants located on the banks of the river.

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first published:December 29, 2020, 14:44 IST