The air quality in the capital deteriorated to an alarming level on a hazy Sunday, forcing Sri Lankan cricketers to cover their faces with anti-pollution masks in a Test match at Delhi's Feroz Shah Kotla stadium.

A day after Delhi witnessed its worst 'air quality' and 'smog situation' of the year, Chief Minister Arvind Kejriwal on Wednesday said he wished to meet his Haryana and Punjab counterparts to find a solution to pollution in the National Capital Region.

As per the findings in the study, on several occasions and several locations, between February and May 2017, the ozone concentration was found to be very high - 3.4 times the normal standard.

Although Delhi is known as one of the world's most polluted cities, none of the major political parties have highlighted how they plan to tackle pollution in their manifestos for the upcoming civic election for which voting takes place on Sunday.