Hydrocarbon and nitrogen oxide emissions norms for twoand three-wheelers would also be regulated separately for the first time. At present, these are combined for regulations, creating a margin to cushion higher NOx emissions from twowheelers. Two-wheelers will also come equipped with onboard diagnostic systems to alert about engine malfunction and wayward emissions.
According to rating agency ICRA, prices of two-wheelers will go up by Rs5,000-6,000 when the emission standards are implemented because the automobile industry will have to go for electronic fuel injection (EFI) system and make changes in the exhaust system. At present, two-wheelers plying on roads in India follow BS-III emission norms.
New Delhi’s Centre for Science and Environment (CSE) welcomed the notification, saying it was a significant move forward because given the sheer numbers of two-wheelers, their contribution to particulate load in cities tend to be high. This can now be controlled.
Last year, automobiles in the city released an estimated 12.6 thousand tonnes of particulate matter -as much as was 35.71% increase from the levels in 2010. The emission is certain to multiply this year.Pune, having high density of two-wheelers, figures among the top cities in vehicular pollution chart.
According to CSE, Euro VI standards will nearly close the gap between diesel and petrol emissions. Under the current BSIV emissions standards, diesel cars are legally allowed to emit three times more NOx than petrol cars.This difference will reduce to 1.3 times under BSVI emission standards. This will also reduce the cancer-causing potential of the new diesel fleet.For the first time, clean diesel fuel with 10 ppm sulphur will come to India. It will enable adoption of advanced emission control systems needed for Euro VI standards.
“Emission benefits from this move will be significant,“ said CSE executive director Anumita Roychowdhury . In case of cars, the particulate matter norm will reduce by 82 per cent and nitrogen oxide (NOx) by 68 per cent; particulate matter and NOx emissions from two-wheelers will reduce by 89 per cent and 76 per cent, respectively; and particulate matter and NOx emissions from trucks and buses will drop by 50 per cent and 89 per cent, respectively .
Roychowdhury added, “This is a game-changer decision and will help India leapfrog to much cleaner emissions. The number of vehicles that India will add in the next decade is more than twi ce the current vehicle stock in the country . This is a much needed step to cut the toxic risk in all our cities and towns.“
The United Nations’ environment section documents state that diesel vehicles and two-stroke motorcycles without emission control technologies tend to emit more particles. Moreover, particles are formed by the transformation of gaseous emissions like oxides of sulphur and nitrogen and VOCs, into secondary pollutants.
“I am not sure if this step will help. The best way to curb vehicular pollution is to take steps to stop personal vehicles coming on road. Instead of setting new emission norms of two-wheelers, it is best to stop two-wheelers hitting the streets. This would be possible only when personal use of vehicles is discouraged by imposing congestion charges and charging heavy parking fee. Public transport services must be improved so that people stop using their own vehicles,“ said Sujit Patwardhan of Parisar organization.
Source : TOI