| Mumbai |
Printed: July 1, 2020 2:19:11 am
At 12, Mumbai on Tuesday afternoon recorded its greatest Air High quality Index (AQI) up to now this yr. Tuesday’s AQI equalled the all-time greatest AQI recorded – additionally 12 – on September 4, 2019. The AQI rose to 19 (good) by night.
“Intense rainfall over Mumbai on Monday night and the high moisture content in air, combined with wind speed, allowed swift dispersion of pollutants close to the surface. In addition, the lockdown restrictions had brought down the PM (particulate matter) concentration and there was no accumulation of pollutants,” mentioned Gufran Beig, director of System of Air High quality and Climate Forecasting And Analysis.
In 24 hours ending at 8.30 am on Tuesday, India Meteorological Division (IMD) Colaba observatory had recorded 101 mm of rainfall.
The focus of PM 2.5 – tiny particulate matter lower than 2.5 microns in diameter that may enter deep into the lungs and even the bloodstream – was recorded at 12 on Tuesday night. Whereas the World Well being Organisation’s secure restrict is 25 µg/m3 for 24 hours, the nationwide security customary for PM 2.5 is 60 µg/m3.
Town’s PM 2.5 focus has been beneath 60 µg/m3 throughout the lockdown interval. PM 10 (massive coarse particulate matter of 10-micron dimension or smaller) was 14 µg/m3 in opposition to the protection restrict of 60 µg/m3.
AQI and PM focus is prone to stay within the “good” class, as extra rains are predicted over the town within the coming days. The IMD has forecast heavy rain at remoted locations for Mumbai from July 2 to 4.
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