New Delhi: Report by Delhi Pollution Control Committee (DPCC) on the ratings of water quality Drains said 16 out of 30 sewers to Yamuna did not meet the parameters determined from the demand for biochemical oxygen (BOD).
Some waterways also lights up the standards that are prescribed from the demand for chemical oxygen (COD) and total suspended solids (TSS).
In addition to analyzing the quality of Yamuna water at eight sites, the DPCC took samples from the water channel to identify the contaminating.
The latest water quality status report, which is based on the sample collected in June, states that the disposal of the sweeper colony is the most polluted.
This contributes 120mg / L Bod, 544mg / LCOD and 310MG / LTSS.
The standard specified for waterways is 30mg / L for directors, 250mg / L for COD and 100mg / L for TSS.
Two more waterways, which do not meet the standard COD standards, are molarband (384mg / L) and metcalf houses (256 mg / l) waterways.
Nine channels failed to meet the TSS parameters.
A DPCC official said, “Because each channel is trapped, the increase in water quality is accessed through this parameter.
Many small waterways join the main water channel and hence, water quality assessment helps in identifying light channels that issue a lot of pollutants that end up the river.
“The analysis will also help in identifying where waste enters into systems or industrial estates that issue waste untreated to the river, he added.
Monthly reports are divided into various authorities to help them improve water quality.
According to officials, there were 18 main channels that fell into Yamuna in stretching between Wazirabad and Okhla in Delhi.
“Of these, traps have been completed in 13 channels and two medium channels – Najafgarh and Shahdara – including in the interseptor sewer project where substantial sub-drivers under the area of ​​their command will be trapped and treated.
Furthermore, treatment in situ inside This channel is also being proposed, “said a report submitted by the Department of Environment to the Union Jal Shakti Minister.
The report states that for the remaining three waterways, the planned action has been prepared, which requires the construction of a waste treatment plant (STP) in the mouth of two waterways, the gate of Mori and barapullah.