Breathless in Pune - Blame it On Chilling Temperatures and Trapped Pollutants

People living in Hadapsar, Katraj, Bhosari and Shivajinagar may be more
susceptible to respiratory infections such as asthma and chronic
bronchitis because the chill the city is currently experiencing has
pushed air pollution levels to a new high in these places.
, IndiaThere was a marked difference in the air quality which remained good to
moderate on November 30 and on December 10. The minimum temperature on
November 30 was close to 22 degrees Celsius and only Shivajinagar,
Alandi and Hadapsar recorded PM10 levels a little above the permissible
limits.
On December 10, all locations--Pashan, Shivajinagar, airport area,
Hadapsar, Alandi, Katraj, Bhosari, Nigdi and Manjari had PM10 levels
hitting the roof, ranging from 103 ug/m3 to 221 ug/m3.
The minimum temperature on December 10 was considerably lower, with the
city experiencing around 9 degrees celsius as per IITM data. "Hence, the
increase in pollution levels," said Gufran Beig, IITM chief scientist
and project director of System of Air Quality Forecasting and Research
(SAFAR).On December 10, all locations--Pashan, Shivajinagar, airport area,
Hadapsar, Alandi, Katraj, Bhosari, Nigdi and Manjari had PM10 levels
hitting the roof, ranging from 103 ug/m3 to 221 ug/m3.
The minimum temperature on December 10 was considerably lower, with the
city experiencing around 9 degrees celsius as per IITM data. "Hence, the
increase in pollution levels," said Gufran Beig, IITM chief scientist
and project director of System of Air Quality Forecasting and Research
(SAFAR).
On December 10, all locations--Pashan, Shivajinagar, airport area,
Hadapsar, Alandi, Katraj, Bhosari, Nigdi and Manjari had PM10 levels
hitting the roof, ranging from 103 ug/m3 to 221 ug/m3.
The minimum temperature on December 10 was considerably lower, with the
city experiencing around 9 degrees celsius as per IITM data. "Hence, the
increase in pollution levels," said Gufran Beig, IITM chief scientist
and project director of System of Air Quality Forecasting and Research
(SAFAR).
The term Particulate Matter (PM) includes both solid particles and
liquid droplets found in air. Many man-made and natural sources emit PM
emissions directly or emit other pollutants that react in the atmosphere
to form PM. These solid and liquid particles come in a wide range of
sizes. PM has two sets of cautionary statements, which correspond to the
two sizes of PM that are measured:
- Particles up to 2.5 micrometers in diameter (PM 2.5)
- Particles up to 10 micrometers in diameter (PM 10)