The flora and fauna of Sankey Tank have been deteriorating rapidly in the last three months due to sewage flooding the tank from surrounding areas. It is estimated that 200 fish have died there and the influx of migrating birds had reduced considerably.

As the World Environment Day would be celebrated on Thursday, the Yamuna river would project a grim picture about increasing pollution level and dip in the water quality. "The Biochemical Oxygen Demand (BOD) load, an important indicator of pollution level has increased by 13 per cent over last year," Central Pollution Control Board (CPCB) has said in its latest 2007 report.

With World Environment Day being celebrated on Thursday, the Yamuna river today projects a grim picture of increasing pollution levels. "The Biochemical Oxygen Demand (BOD) load, an important indicator of pollution levels, has increased by 13 per cent over last year,' Central Pollution Control Board (CPCB) has said in its latest report. This rise might be because of increase in generation of BOD load in the city or decrease in treatment efficiency of sewage treatment plants (STPs).

21 drains of Delhi, one from Uttar Pradesh carry untreated effluent into the river'

The quality of ground water across the Bareilly city has been determined by analyzing different physico-chemical parameters. Alkalinity and hardness of groundwater is beyond the WHO limits. Water quality index of different sites is also calculated.

Effluent samples were collected from a tannery in Ambur, near North Arcot Dist, Tamil Nadu, India. The physico-chemical parameters of the effluent viz, colour, odour, pH, Electrical conductivity, TSS, TDS, BOD, COD, total hardness, calcium hardness, magnesium hardness, chloride, sulphate and total chromium were determined. The results revealed that almost all the parameters of Tannery Effluent were found to be high and exceeding the CPCB limits.

The wastewater generated from textile industries of Bhilwara city is studied for its characterization. Wastewater of textile industry was found to contain a high degree of pollutants with high TDS and suspended solids. The wastewater is highly colored and viscous due to dyestuff and suspended solids respectively.

The data on flow, BOD, COD, TSS and TDS were collected from the common effluent treatment plant (CETP) for the period from June '96 to November '96. The data were analysed to assess the performance of the CETP in terms of removal efficiency for the above mentioned parameters. The original design of individual units in the CETP were scrutinized for their authenticity.

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