Controlling pollution from the growing number of diesel cars in Delhi

The Hon’ble Supreme Court has taken important initiatives to clean Delhi’s air. Over the past few years, these efforts have led to improvement, with quantifiable impacts on air pollutants – carbon monoxide, lead and sulphur dioxide. The levels of respirable particulate matter (RSPM) has decreased and stabilised during this period. But the trends are now getting reversed. Levels of two key pollutants – RSPM and nitrogen oxides (NOx) – are on the rise. It is imperative that urgent action is taken to reverse the situation, otherwise the gains made will be negated.