India, Jan. 12 -- The latest Delhi Pollution Control Committee (DPCC) report shows that, of Delhi's 37 sewage treatment plants (STPs), 12 did not meet the treatment standards prescribed by the Central Pollution Control Board (CPCB) in Novemberwhile sample could not be lifted from the 13th facility at Sonia Vihar, even as the clean-up of Yamuna is under the spotlight.

The report, dated December 17, is part of the monthly assessment report for November, and it reveals that a large section of the STPs do not meet the prescribed norms set for parameters such as faecal coliform, biological oxygen demand (BOD), Chemical Oxygen Demand (COD) and total suspended solids (TSS), among others. DPCC collects and analyses samples for STPs once every mo...