Delhi pollution stubble burning Diwali air pollution CPCB data


diwali air pollution
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Weather situation, stubble burning lead increased pollution on Diwali: CPCB

The ranges of air pollution throughout Diwali this 12 months had been discovered a lot increased as in comparison with the final 12 months whereas a big dip was present in noise pollution degree, the Central Pollution Control Board (CPCB) revealed on Sunday. In a particular report, the CPCB stated virtually all pollution reported increased values on Diwali day and pre-Diwali day this 12 months as in comparison with 2019. “It is observed that if compared with 2019 pre-Deepawali day (21.10.2019) concentrations of NO2, PM10 and PM2.5 were found to be much higher on pre-Deepawali day (on 09.11.2020) at all the monitored locations, while SO2 concentrations were at a similar level. On Deepawali day (14.11.2020), almost all the pollutants reported higher values as compared to 2019 Diwali day,” the report said.

However, the report attributed its final result to the excessive share of stubble burning and meteorological situations and the perennial subject of deteriorated air high quality throughout November in Delhi-NCR, not on account of fire-cracker bursting. Though Pitampura recorded a rise in PM and SO2 indicating the impression of firecracker bursting on Deepawali day, it added.

“The contribution of stubble burning in Delhi’s PM2.5 concentration was 32 per cent on Diwali day this year as compared to 19 per cent last year. Therefore, it may be inferred that elevated PM2.5 concentrations in 2020 in comparison to previous year had enhanced contribution of stubble burning and the same is also reflected in elevated levels of CO and NO2,” the report revealed.

The CPCB noticed that the hourly common focus of PM2.5 began rising from 11 p.m. on November 14, it reached peak in a lot of the stations at round 1 a.m. and continued at increased ranges until 5 a.m. The city-level common calculated for PM10 and PM2.5 concentrations on Deepawali day (14.11.2020) had been 645 µg/m3 and 483 µg/m3 respectively.

“Most of the parameters including PM2.5 monitored by stations set-up at IHBAS (Dilshad Garden), DMS (Shadipur) and NSIT (Dwarka) were found more on both pre-Deepawali and Deepawali days compared to 2019,” the report added.

Meanwhile, the central company seen a big drop within the noise pollution degree this 12 months compared to 2019.

The handbook monitoring of six areas earlier than Diwali revealed that the noise degree was discovered declined at Lajpat Nagar, Mayur Vihar Phase-II, and Janakpuri, compared to the earlier 12 months. However, the very best degree was recorded at Kamla Nagar this 12 months on pre-Deepawali day, the report said

Meanwhile, real-time monitoring of ten stations confirmed that day time noise ranges have decreased in 2020 as in comparison with pre-Deepawali day of 2019 at seven areas. Only NSIT Dwarka, R.Ok. Puram and ITO stations have recorded a slight enhance in day time noise. The night-time noise discovered elevated at Anand Vihar and ITO, the report stated.

CPCB carried out the ambient air high quality and noise degree monitoring on choose pre-Deepawali day (09.11.2020) and on Deepawali day (14.11.2020) in Delhi like earlier years. Ambient Air Quality was monitored at 40 areas (three handbook stations and 37 real-time stations). The ambient Noise degree was monitored at 16 areas (06 handbook and 10 real-time noise monitoring stations). Three steady air high quality stations (operated by CPCB, NABL accredited) have been used for comparability with the final 5 years’ data.

CPCB carried out ambient air high quality and noise degree monitoring on pre-Deepawali and Deepawali day in Delhi. The air high quality was monitored at 40 areas with three handbook stations and 37 real-time stations. Meanwhile, the ambient noise degree was monitored at 16 areas together with 6 handbook and 10 real-time noise monitoring stations.

The air high quality dipped to extreme at a number of locations throughout the nationwide capital on Saturday night time owing to a mix of stubble burning and firecrackers burst throughout the Diwali celebrations in violation of a ban on the identical.

The Air Quality Index (AQI) for PM 2.5 pollutant stood at 481 in Anand Vihar, 444 in IGI Airport space, 457 in ITO, and 414 in Lodhi Road space, all 4 within the ‘extreme’ class, at 11 pm on Saturday, in response to the Delhi Pollution Control Committee (DPCC) data.

A thick blanket of smog was seen at a number of locations throughout the nationwide capital because the Diwali celebrations got here to an finish late Saturday night time. Meanwhile, the air high quality was 460 at Anand Vihar, 382 at IGI Airport space, 415 at ITO, and 322 at Lodhi Road.

(With IANS inputs)

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