The Environment Pollution (Prevention and Control) Authority has submitted the findings to the Supreme Court, where it has also mentioned the rampant use of Furnace Oil (FO) and Pet Coke, banned since 1996, in Delhi.
The DPCC, which inspected 19 industrial units in March, found that Furnace Oil was being used in seven units. During the inspections, it also found that even CBFS - Carbon Black Feed Stock - was being used.
"It was noted that this fuel, which has a very high black carbon content, is highly polluting and also toxic as it contains high levels of Poly-Aromatic Hydrocarbons. This is clearly very dangerous and toxic and carcinogenic and its use must be stopped," the EPCA report said.
In a separate investigation, undertaken by EPCA chairman Bhure Lal and member Sunita Narain, it was found that furnace oil was openly available in authorised industrial estates of Delhi.
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"Tankers are freely roaming around in the industrial areas with large sales of FO and tire oil. On enquiry EPCA was told that these contained furnace oil that was sold by dealers in Punjabi Bagh.
"It was told by Indian Oil that action is being taken against the private oil tanker for using its logo while selling FO in Delhi. It has also issued a public notice to warn tanker owners that using its trademark or logo could invite criminal prosecution," it said.