Air quality comes down, noise level exceeds limits
This year the knit city of Tirupur had a ‘noisy’ and ‘smoky’ Deepavali as the noise and air pollution levels crossed the permissible limits by ‘miles’ on the festival date.
Violation got revealed in the ambient air quality and noise level studies conducted by the District Environmental Laboratory (DEL) under the Tamil Nadu Pollution Control Board here which in fact carried out surveys a week prior to Deepavali and on the festival day.
The DEL’s air quality study conducted with the help of high volume air sample apparatus recorded a maximum Respirable Suspended Particulate Matter (RSPM) level of 248 micrograms/cubic metre in the city against the permitted ceiling of 100 micrograms/cubic metre for residential localities on the Deepavali day.
Likewise, RSPM level at commercial area and sensitive zones (schools and hospitals) stood at 171 micrograms/cu.m. and 192 micrograms/cu.m, respectively, against the ceiling of 100 micrograms/cu.m.
“When the readings taken a week prior to Deepavali, to be exact on November 6, the RSPM readings at residential, commercial and sensitive zone were only 92 micrograms/cu.m, 124 micrograms/cu.m, and 75 micrograms/cu.m, respectively,” TNPCB officials told The Hindu.
The Board’s officials attributed the significant rise in RSPM levels to the release of powdered chemicals, metallic components and dust in large quantities as revellers these days use fancy crackers and rockets that burst mostly high in the air.
On the noise level, the peak readings of 73.9 decibels and 66.4 decibels were registered on residential and commercial zones, respectively, between 6 p.m. and midnight during the Deepavali day against the permissible limits of 55 decibels in the case of both the areas.
“Seven days ahead of the festival, the noise level readings at residential and commercial areas were just 53.4 decibels and 45.9 decibels, respectively,” DEL officials pointed out.
According to health experts, the authorities concerned need to sincerely act against the production of crackers which produces high-levels of sound at the factory levels itself to prevent its usage and causing inconvenience to society.