The pollution level in the Indian capital of New Delhi is reported to be 20 times higher 20 times higher than the safe level recommended by World Health Organisation.  The problem is very worrying and the issue, including the measures that followed afterwards, received huge attention, and rightly so, in the news media, within India and beyond.

The average trend of PM2.5 for the last 19 months Delhi has witnessed unhealthy and hazardous levels for most of the past year. Air pollution is determined by the level of atmospheric particulate matter (PM) The finer the matter, the deeper it can reach in lungs and blood stream causing more harm.