The air pollution in river Hindon has continued to worsen with the water samples registering a really excessive presence of faecal coliform, a transparent indicator that untreated sewage is flowing into the river, opposite to the tall claims by officers that the sewage therapy crops (STPs) are “on top of things”.

Based on Uttar Pradesh Air pollution Management Board (UPPCB), an evaluation of samples collected from downstream of Kulesra in Noida in April 2021 discovered the biochemical oxygen demand (BOD) to be 55 milligrams per litre (mg/l) in opposition to 30mg/l in April and December final yr. The permissible limits for BOD — or the minimal ranges of oxygen required to diffuse organic matter — is as much as 3 mg/l.

Equally, faecal coliform was discovered to be 13,00,000 most possible quantity (MPN)/100ml (in opposition to 4,00,000 in April 2020), which is about 520 occasions the max permissible ranges of two,500 MPN/100ml, the UPPCB report stated.

The upper ranges of faecal coliform reveals {that a} excessive quantity of sewage is reaching the river.

Earlier in October, a report by Nationwide Mission for Clear Ganga had acknowledged that 10 of 14 STPs alongside the river in Ghaziabad and Gautam Budh Nagar weren’t complying with the discharge requirements and that each one 14 STPs have been underperforming. Officers within the two districts later stated the STPs have been fastened and at the moment are “working fantastic”.

However the UPPCB information contradicts the declare, because the air pollution degree after the STPs have been fastened (October 2020 onwards) had solely worsened.

The info additionally confirmed that dissolved oxygen degree within the river was nil all year long in opposition to a minimal requirement of 5mg/l. Dissolved oxygen degree (required to maintain aquatic life) is the lifetime of a river, which being nil implies that the river is nearly useless with water unfit for consumption of any variety.

Based on officers, it’s the unauthorised and untapped sewer from unlawful settlements alongside the river that’s polluting the Hindon.

“All STPs have been fastened and are complying with discharge norms in Ghaziabad.A couple of STPs have been earlier not performing however we had them checked and later inspected. They’re now complying with the norms. There are 10 STPs in Ghaziabad of which 4 are alongside the Hindon, and all are presently working,” stated Utsav Sharma, regional officer, UPPCB, Ghaziabad.

The air pollution management board officers from Noida additionally acknowledged that STPs of their jurisdiction are working.

“We’re diluting the sewage that we’re receiving from upstream. There was one STP in Sector 123 that was discovered non-compliant for faecal coliform however we had fastened it. Noida has six STPs and all are complying with norms; solely the Sector 123 STP discharges into the Hindon,” stated Praveen Kumar, regional officer, UPPCB, Noida.

He admitted that there are some drains that vacant into the river untreated.

“There are some drains just like the one in Dasna that empties into the Hindon close to Gaur Metropolis untreated. Although we be sure that no matter industrial effluent it carries is handled, the drain takes a protracted route after originating in Dasna and flowing by means of Ghaziabad, Dadri, villages alongside GT Street and merges with Hindon close to Gaur Metropolis. The perfect we will do is to alert the civic authority involved to care for the native waste,” stated Kumar.

Officers additionally identified that there are a variety of unlawful settlements alongside the river.

“The reality is that we will faucet the unlawful sewage from authorised settlements however there are a variety of huge settlements equivalent to those in Khulsehra, Chhajarsi, Vijay Nagar, Kinauni village and different areas of Ghaziabad and Gautam Budh Nagar which can be located alongside the river and discharge untreated effluents into it — the explanation for the presence of excessive ranges of faecal coliform. The difficulty persists because the sewers in these villages are untapped, there isn’t a information on them both. In addition to, in Ghaziabad, the river is diverted towards the Hindon canal for irrigation, in order that the movement of the river is affected. This challenge stays unaddressed,” stated a senior UPPCB official, on the situation of anonymity.

Based on environmentalists, the main explanation for air pollution is “official apathy”.

“The nationwide mission for Clear Ganga in its report had ordered the district administrations to take acceptable motion in opposition to officers or organisations liable for polluting rivers. It additionally ordered authorized motion in opposition to officers who have been accountable to make sure that STPs are purposeful. Sadly, there isn’t a accountability, neither is anybody held accountable. The result’s that the situation of the Hindon continues to deteriorate by the day,” stated Vikrant Tongad, a Noida-based environmentalist.

The Hindon – west Uttar Pradesh’s most essential river – has a basin space of about 7,000 sq. kilometre. Its tributaries embody the Krishni and Kali, that are additionally extremely polluted. The Hindon originates from the Shivalik vary in Saharanpur district, flowing all the way down to Muzaffarnagar, Shamli, Meerut, Baghpat, Ghaziabad and Gautam Budh Nagar to lastly meet the Yamuna in Noida.

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