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Bhubaneswar: With the exit of monsoon from Odisha, aerosols cover in the atmosphere over Odisha have increased.
Even as the Aerosol Optical Depth (AOD) value for Odisha has been estimated at around 0.8-0.9, which is almost at par with Delhi's AOD, the air quality index (surface air) of Odisha looks far healthier than Delhi.
As per the data available with State Polution Control Board, the air quality index of Bhubaneswar on Saturday is estimated at around 80, which is however not good quality or termed as of moderate quality, whereas the AQI of Delhi is put at 188, which is considered poor.
Odisha's most polluted place has been Brajarajnagar with an AQI value of 102 at 4 PM today.
However, a detailed look shows that, though, Bhubaneswar has low PM 2.5 and PM 10 than Delhi, the CO (Carbon Monoxide) in Bhubaneswar air has been far higher than Delhi. While the CO in Delhi Air today has been estimated at 49 microgram/m3, whereas the CO in Bhubaneswar air is measured at 241microgram/m3.
The PM2.5 in Bhubaneswar is 33 micrograms/m3, whereas it is measured higher at 128 micrograms/m3 in Delhi. The values for Semilipada (Angul) have been 23 micrograms/m3, which is better than the Capital city.
The CO level in Brajrajnagar and Talcher has been measured at 99 and 72 micrograms/m3, respectively, today.
The O3 (Ozone concentration) in the City air is less than Delhi. When the value for Delhi has been estimated at 108 micrograms/m3, it's at 87 micrograms/m3 in the Temple town today.
The values for Brarajnagar and Talcher have been 5 and 15 micrograms/m3, respectively.
A look at the pollutants in Bhubaneswar air shows how the vehicular pollution, especially the combustion of fossil fuels like petrol & diesel, is playing havoc with the City air much worse than Delhi.
The reason: the City air has higher CO and O3, which are the harmful by-products of combustion of fossil fuels like petrol and diesel.
This Ozone pollutant is formed in the lower atmosphere, when exhausts from cars react chemically to form ozone compound that is very harmful. In scientific terms, it is being known as bad Ozone to distinguish with ozone layer in the upper atmosphere, and for the conservation of which, climate summits are organised every year in UN.
