Delhi Diesel Vehicle Ban
The Supreme Court has sought the Centre's reply on a report by the
Environment Protection Control Authority, terming Delhi's air pollution
as critical because of the rise of diesel vehicles on the road. The
authority recommended a ban on registration of diesel vehicles for
personal use. "This restriction should also be applied to vehicles
entering the city from neighbouring states as otherwise, the influx of
these vehicles into the city will continue to grow and will negate the
gains of pollution control measures," the report said. The court, which
issued the notice last Friday, has given the Centre four weeks to reply
The pollution report correlated increase in respirable suspended
particulate matter (RSPM) and Nitrogen Oxide (NOX) levels with higher
registration of diesel vehicles in Delhi. The number of diesel cars has
increased by nearly 425 per cent over the last decade, but fell after
the introduction of CNG, the report said. Every day 963 new vehicles
ply Delhi's roads, of which 308 are diesel-run. While registration of
petrol cars has increased at the annual rate of 8.5 per cent, diesel
vehicle registrations have gone up by 16.6 per cent. Quoting
information from the Society of Automobile Association of India, the
report said, the market share of diesel cars has increased to over 30
per cent in the last 18 months and is expected to be 50 per cent by
2010, when Delhi hosts the Commonwealth Games. These additional
vehicles, the report said, would release particulate matter equal to
30,000 diese1buses. This month, the respirable suspended particulate
matter level touched 240 microgram per cubic metre, which is higher
than the level in 2002 when CNG was introduced. "Diesel vehicles in
2004 contributed 23 per cent to RSPM levels," the report said. The
report also said the emission from diesel vehicles is more toxic than
petrol vehicles and cited various studies to substantiate this. The
report also said that diesel cars meeting the Bharat Stage III emission
standards are allowed to emit three times more NOX and RSPM than the
petrol cars. "Petrol cars emit negligible particulate matter while
every diesel car is allowed to emit 0.05 gram per kilometre under the
Bharat Stage III norms," the report said. But in Europe the NOX and
RSPM standards for petrol and diesel vehicles are similar, the report
said. Pointing out that Pollution Under Control System, measuring the
polluting level of diesel vehicles, has not worked the report said that
the standards for the smoke density test for a PUC certificate was
quite low. Hence, of the 50 diesel vehicles checked, none failed the
test. "Worldwide the smoke density test has failed. Countries like
Australia have adopted better technologies," the report said. EPCA also
found out in June 2006 that some PUC centres were fudging their
certificates, which it said, were issued without even starting the
engine of the vehicles or sometimes by tinkering with the machines.
Putting forth the point about the report, amicus curiae Harish Salve
said the time has come to take corrective measures or the gains of
introduction of CNG would be lost.
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