Delhi odd-even scheme: Air quality improves slightly on Day 2
The safe levels of PM 2.5 and PM 10 are 60 and 100 ug/m3 respectively.
Apr 16, 2016, 21:19 PM IST
The safe levels of PM 2.5 and PM 10 are 60 and 100 ug/m3 respectively.
Apr 16, 2016, 21:19 PM IST