Did the second phase of Odd-Even formula from April 15 to April 30 reduce pollution level in Delhi?

air pollution dropped during first 10 days of the scheme but suddenly increased April 23 onwards."

Source: b'Representational Image | Source: Reuters'

The Reason?Crop-burning across Punjab and Haryana and forest fires in Uttarakhand.

So what else did CSE study find?

The study notes: 

"Between April 15 and April 23 PM2.5 (particulate matter) levels declined substantially compared to the previous fortnight. The average PM2.5 level during the first nine days was 24 per cent lower than the average of the previous fortnight."
Source: b'Source: CSE'
Source: b'Source: CSE'

Feature image source:  PTI/Representational Image