Air pollutants less than last year but still above the permissible limit
The quality of air in our city is not really at the best level but as reported in Times of India, a mixed picture-extent of fine particulate matter (PM2.5) is down and so is a percentage of nitrogen dioxide in the ambient air in residential areas like Andheri. PM2.5 and NO2 are produced through construction activity and vehicular pollution.
This means harmful gaseous toxins are less in number this year but averages for various pollutants in Mumbai's atmosphere are still way above the permissible limit.
Air quality is monitored at two traffic junctions in the city, one at Wadala and another at Andheri.
According to data from the BMC's Environment Status Report 2016-17, the study of the last two years indicates that sulphur dioxide (SO2) levels in the air have gone up though they are within prescribed limits.
NO2 shows a drop at Andheri and an increase at Wadala, but levels measured are above prescribed limits in both cases.
Suspended Particulate Matter
PM 2.5 and PM 10 levels are lower than last year but way above the prescribed limits. Many experts have stated that PM 2.5 is a more serious health concern than PM 10 since smaller particles can be ingested more easily and cause more damage.