Patna records seven times rise in RSPM level on Diwali
Patna recorded nearly seven times the normal amount of respirable suspended particulate matter (RSPM) in the air on Diwali while the ambient noise level was also high.
685.97 micrograms per metre cube of RSPM was recorded on Diwali which is seven times the standard rate of 100 micrograms per metre cube and almost double the average level of RSPM at 335.70 micrograms on normal days.
RSPM is a causative agent of mortality and morbidity.
Fine particles on their own or with combination with other air pollutants are linked with a number of health problems like premature death, aggravated asthma and acute respiratory symptoms.
According to a press release by the Bihar State Pollution Control Board (BSPCB), it chose October 24 to compare the air quality data gathered from the city's Boring Road square.
The level of RSPM was recorded at 487.74 micrograms between 2 PM and 10 PM on Diwali against the 425.43 micrograms of RSPM on the normal day (October 24), the release said.
From 10 PM to 6 AM, 685.97 micrograms per metre cube of RSPM was recorded on Diwali.
The average level of RSPM on the festival was recorded at 498.63 micrograms per metre cube.