CSIR chief warns of health risks from CNG

By: | Updated: August 7, 2015 1:14 PM

Stoking a serious controversy over the much-touted eco-friendliness of “clean” natural fuels such as CNG, which are aggressively being promoted...

CNG priceDr MO Garg, director-general of the Council of Scientific and Industrial Research (CSIR), on Thursday said a study conducted by his organisation show that vehicles running on these fuels emit dangerous carcinogenic nano carbon particles. (PTI)

Stoking a serious controversy over the much-touted eco-friendliness of “clean” natural fuels such as CNG, which are aggressively being promoted as the preferred fuel for operating vehicles, Dr MO Garg, director-general of the Council of Scientific and Industrial Research (CSIR), on Thursday said a study conducted by his organisation show that vehicles running on these fuels emit dangerous carcinogenic nano carbon particles.

Addressing an inaugural session of the two-day ‘Global Green Nanotechnology Conclave 2015’ organised by CII in Ahmedabad, Garg said, “Natural gas is supposed to be a clean fuel… We did a study with a professor from the University of Alberta (Canada), where he developed a machine that measures the particle size and distribution of the exhaust from an IC (internal combustion) engine. We put this machine on (the exhaust tail pipe of) a natural gas-powered DTC bus in Delhi and rode around the city.”

Garg said the real-life case study, conducted in joint collaboration between the Indian Institute of Petroleum, Dehradun and the University of Alberta found “nano carbon particles” coming out of the exhaust of the CNG bus.

“You have these nano carbon particles floating around the atmosphere of Delhi. These nano carbon particles can enter straight through your nose into your lungs and can penetrate through the membranes right into your blood.

They can be very rich in polynuclear aromatics which is carcinogenic,” he said at the event.

Garg also hailed nanotechnology as a potential solution for most of the world’s future problems. According to him, India is already third in nanotechnology research in the world with over 500 patents having been filed by Indians.

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