Diesel is considered relatively cleaner when advanced emissions control systems are used, with 10 ppm (parts per million) sulphur content. But the diesel sulphur level in India is as high as 350 ppm which is much higher than the global benchmark. The diesel vehicles, cars included, are adding to the burden of particulate matter, nitrogen oxides and ozone .
Yet the automobile industry is against any proposal that would impose an additional tax on diesel cars. Their stand? Diesel is more energy-saving, more fuel-efficient than petrol and when compared to other industries, the contribution of cars and diesel to pollution is ‘very low’. What do you think?