There are currently around 90 cities that India's Central Pollution Control Board (CPCB) identified as critically polluted. Particulate matter (PM), especially fine particulate matter (PM2.5), dominates the concern. Other air pollutants such as NO2, ozone (O3), and air toxics are also problematic. The health problems caused by these pollutants are affecting not only large cities, but also many smaller, rapidly expanding cities across India.

This study presents emissions of different pollutants from transport sector in Delhi. Results show that emissions of pollutants have increased during 2001-2009 as follows: CO2, 4395-6423; CH4, 1.03-3.32; N2O, 0.04-0.05; CO, 238-329; NOx, 44-64; and NMVOC, 44-60 Gg. However, CO2 emissions per unit of vehicle types for gasoline driven vehicles show a decrease as follows: two wheelers, 2.7; and cars, 4.3%; while in case of diesel driven vehicles, this reduction is 1.6%, indicating impact of better vehicle technologies introduced.

Centre for Science and Environment (CSE) has welcomed and supported the move of finance minister Pranab Mukherjee to consider removing diesel fuel subsidy for diesel car owners. CSE has consistently raised its voice over misuse of public policy on fuel pricing inciting dieselisation, increasing toxic risk from diesel emissions, worsening energy guzzling from bigger diesel engines and aggravating revenue losses from luxury consumption of diesel in cars.

New Delhi-based Centre for Science and Environment (CSE) and TVE Asia Pacific jointly organise a media briefing in Colombo on the Challenges of Air Quality and Mobility Management in South Asian Cities . Colombo, like Delhi, is facing a serious air pollution problem – toxic risk from rapidly growing numbers of vehicles, many of which run on diesel.

New Delhi-based Centre for Science and Environment (CSE) and TVE Asia Pacific jointly organise a media briefing in Colombo on the Challenges of Air Quality and Mobility Management in South Asian Cities . Colombo, like Delhi, is facing a serious air pollution problem – toxic risk from rapidly growing numbers of vehicles, many of which run on diesel.

The European Commission has proposed new emissions standards for two and three-wheeled powered vehicles and quadricycles, collectively termed L-category vehicles, as part of a broader regulation that would also cover safety and market surveillance.
From an air-quality perspective the primary objective is to keep constant or reduce the share of total road-transport emissions from L-category vehicl

Seoul/Beijing: Auto sales rose strongly in August, benefiting from government moves to encourage purchases of new and cleaner vehicles, though an uncertain US economy and slowing growth in China look set to curb demand.

In China, the world's biggest auto market, car sales jumped almost 60% for the month, a sharp improvement from July.

"Overall sales growth in the US is already slowing down a

Beijing, the capital of China, has experienced rapid motorization since
1990; a trend that is likely to continue. The growth in vehicles and
the corresponding emissions create challenges to improving the urban
air quality.

 Pune The Automotive Research
Association of India (ARAI) has developed an HCNG (Hydrogen blended CNG ) fuel
engine complying with EURO V standards for light commercial vehicles. HCNG is
greener than CNG and perceived as the ultimate alternative for fossil fuels.
ARAI claims to be the first Indian institute to develop HCNG fuel engine.

Hiroko Tabuchi

 Two pedals, centimetres apart

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