Growing awareness about harmful crackers leads to decrease in RSPM.
With growing awareness among people about the harmful implications of burning crackers and self-discipline, Indore saw 50% reduction in air and noise pollution levels this Diwali as compared to the last year’s figures.
The data generated by the MPPCB has revealed that the dust, smoke and overall particulate matter present in the air and the decibel levels released from burning of crackers on Diwali have reduced to half this year against 2012.
The data reveals that the Respirable Suspended Particulate Matter (RSPM) which is responsible for breathing and other respiration problem, reduced to 272.3 micrograms per cubic meter this year against last year's record of 589.88 micrograms per cubic meter at Vijay Nagar monitoring station. Similarly it reduced from 580 micrograms per cubic meter to 475.3 micrograms cubic meter this year at the MIG Square monitoring station. As per the CPCB guidelines, the permissible RSPM limit in the air is 100 micrograms per cubic meter.
“The RSPM level continues to be higher than the standard limit but it has shown significant decline against last year," claimed MPPCB chief chemist Aparna Bapat. Atul Kotiya, scientist at the board, claimed that the reduced RSPM level is on account of the reduction in the crackers burnt as well as the higher atmospheric temperature which left the particles suspended in air during the recording.
However, no significant change in the RSPM has been recorded at the Kothari Market station which has been the most polluted areas of the city since the last five years.
Although the sulphur and nitrogen oxide emissions did not show remarkable change as comparison to previous years, the level was still within the standard limit of 80 micrograms per cubic metre at all stations. The noise level received this year has also shown significant reduction, claimed officials.
The maximum noise level was recorded at Kothari market (125 decibels) followed by CHL Apollo station (120 decibels) and then Vijay Nagar station (110 decibels)," Kotiya claimed. He said that the standard noise level as prescribed by the CPCB is 75 decibels. Residents too feel that the pollution level apparently appeared to have reduced this year.
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