Skip to main content

Delhiites Wake Up to ‘Very Poor’ Category Air Quality Level After Witnessing ‘Cleanest October’ Since 2015

New Delhi: On Monday (November 1) morning, residents of the national capital woke up to overall air quality of ‘very poor’ category, as the Centre-run System of Air Quality and Weather Forecasting and Research (SAFAR) recorded Air Quality Index (AQI) of 302. The weather forecasting agency has further predicted that the air quality will “improve to the upper end of poor” due to the expected change in wind direction to westerly/south-westerly reducing transport of emissions from stubble burning. “Isolated rainfall is likely in the upwind region that would improve air quality,” it added. As per SAFAR, the share of crop residue burning emissions in PM2.5 is about 8 per cent.

The air quality level slipped in New Delhi after witnessing the cleanest October air this year since the Central Pollution Control Board (CPCB) started measuring the city’s AQI or air quality index in 2015. Earlier on Sunday, the India Meteorological Department (IMD) predicted that the air quality in the national capital is likely to be in the lower end of the Very Poor category on November 1-2.

“The air quality is likely to remain in the lower end of Very Poor category till November 4 and then deteriorate on November 5-6 significantly. PM2.5 to be the predominant pollutant,” IMD said. As per government agencies, an AQI within the range of 0-5 is regarded as ‘good’, 51-100 is ‘satisfactory’, 101-200 is ‘moderate’, 201-300 is ‘poor’ and 301-400 is ‘very poor’ and 401-500 is considered ‘severe’.

Record-breaking rainfall gave Delhi its cleanest October and best air quality

According to the latest data provided by the CPCB, an extended monsoon season and record-breaking rainfall in October gave Delhi its best air quality in the month in four years. This is also the first time in four years that Delhi did not see a single “very poor” or “severe” air quality day in October which generally records a sharp rise in pollution levels due to unfavorable meteorological conditions and stubble burning in the northwest region of the capital.

However, the capital recorded a “good” air day in October this year, also a first in four years. An AQI between zero and 50 is considered “good”, 51 and 100 “satisfactory”, 101 and 200 “moderate”, 201 and 300 “poor”, 301 and 400 “very poor”, and 401 and 500 “severe”

Delhi gauged 122.5 mm of rainfall in October, the highest in the month since 236.2 mm of precipitation recorded in 1956, according to the India Meteorological Department. Stubble burning and its share in Delhi’s PM2.5 pollution also remained low due to bountiful rain. According to data from the Indian Agricultural Research Institute, Punjab has recorded 10,374 farm fires this season since September 15 as compared to 29,712 stubble burning incidents in the corresponding period last year.

The city recorded an average air quality index of 173 in October this year, the lowest in the month in four years. October saw an average AQI of 265 in 2020; 234 in 2019 and 264 in 2018.

The CPCB data showed the city witnessed three “satisfactory” air quality days in October this year as compared to zero in 2020, four in 2019, and nil in 2018. The capital also saw 19 “moderate” air quality days as against six such days each in 2020, 2019 and 2018. Eight “poor” air quality days this month was the lowest in October since 2018.

(With agency inputs)



source https://www.india.com/news/delhi/delhiites-wake-up-to-very-poor-category-air-quality-level-after-witnessing-cleanest-october-since-2015-5078579/

Comments

Post a Comment

Popular posts from this blog

Bigg Boss 15: Nishant Bhat Becomes New Captain, Asks Boys to do 10 Sit-ups to Apologise Bigg Boss

Bigg Boss 15: In tonight’s episode, when Bigg Boss asked the contestants Shamita Shetty, Nishant Bhat, Pratik Sehajpal, Vishal Kotian, Akasa Sing, Jay Bhanushali and Tejasswi Prakash to nominate two contestants for the captaincy task (Captainc ki race) with aapsi sehamati (mutual consent), they come to a conclusion and choose Nishant and Prateek. The rest of the contestants were asked to help whom they want to support as a captain. Tejasswi Prakash became the sanchalak of the task. The winner of the captaincy task was declared and Nishant Bhat became the new captain of the house. Bigg Boss has asked to take the rights to control the house. After the captaincy task, Nishant and Shamita discuss the decision taken and Bhat made Shetty understand to play the game by not trusting anyone, pointing out on Pratik. After a few minutes, Bigg Boss raised Kukdu Ku alarm back-to-back as most of the contestants were sleeping. Nishant took all the boys outside in the garden, nea...
Post a Comment
Read more

‘Right Decision, Wise Decision and the Best Decision’: US President Biden as He Marks the End of War in Afghanistan

Washington: A day after the last American troops were pulled out of Afghanistan, United States President Joe Biden addressed the nation and defended his decision and said that ending the 20-year war was the best and the right decision for America. President Biden’s address came just 11 days ahead of the 20th anniversary of the 9/11, terrorist attacks that precipitated the US intervention in Afghanistan. During his address, Biden said there was no reason to continue in a war that was no longer in the service of the vital national interest of the American people. He said, “I give you my word: With all of my heart, I believe this is the right decision, a wise decision, and the best decision for America. The war in Afghanistan is now over. I am the fourth president to have faced this issue on how to end this war. I made a commitment to Americans to end this war, I honoured it.” We’ve been a nation too long at war. If you’re 20 years old today, you have never known an America at peace. S...
Post a Comment
Read more

Heavy Rains Lash Delhi-NCR, Waterlogging in Several Parts; More Rains Predicted

New Delhi: People of Delhi and NCR woke up to heavy rains and pleasant weather on Sunday. However, waterlogging was reported in several parts of Delhi-NCR in the morning. According to the India Meteorological Department (IMD), thunderstorms with moderate to heavy intensity rain would occur over and adjoining areas of entire Delhi-NCR today. The IMD tweeted, “Thunderstorm with moderate to heavy intensity rain would occur over and adjoining areas of entire Delhi, NCR ( Bahadurgarh, Gurugram, Manesar, Faridabad, Ballabhgarh, Loni Dehat, Hindon AF Station, Ghaziabad, Indirapuram, Chhapraula, Noida, Dadri, Greater Noida)” Greater Noida) Kaithal, Karnal, Rajaund, Assandh, Safidon, Panipat, Gohana, Gannaur, Sonipat, Narwana, Jind, Rohtak, Hissar, Hansi, Tosham, Bhiwani, Charkhi Dadri, Jhajjar, Loharu, Narnaul, Mahendargarh, Kosali, Farukhnagar, Bawal, Rewari, Nuh, Sohana, Hodal, Palwal (Haryana) — India Meteorological Department (@Indiametdept) August 1, 2021 Vehicles commuting from ...
Post a Comment
Read more