Hellow guys, Welcome to my website, and you are watching Why did post diwali air quality improve in Delhi this time?. and this vIdeo is uploaded by Down To Earth at 2022-10-26T05:55:25-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
| Name | Why did post diwali air quality improve in Delhi this time? |
| Video Uploader | Video From Down To Earth |
| Upload Date | This Video Uploaded At 26-10-2022 12:55:25 |
| Video Discription | The AQI in the National Capital Region worsened on Diwali as citizens defied cracker bans and stubble burning incidents increased. Even before Diwali, winds had slowed down and local emissions had begun to accumulate, steadily driving up pollution levels. Air quality in Delhi is likely to remain in the ‘very poor’(AQI 301-**400) category until *October 26, 2022. PM 2.5 share in the capital has reached 55%. But, the post Diwali AQI has seen an improvement since 2015 (303 on 25th October). It was 462 last year, in the ‘severe’ category. The wind speed from the westerly-southwesterly direction this year has prevented too many pollutants from accumulating in the air and helped disperse some pollution from stubble burning (1400 fires - October 23rd, 1484 fires - October 24th). Wind speeds increased to 15-20kmph on October 25 during the day, with the visibility improving in several parts of Delhi. Additionally, warmer temperature during Diwali this time has also prevented the boundary layer(lowest part of the troposphere) from becoming thinner and allowed particulate matter to disperse quickly. The boundary layer is where particulate matter gets trapped. There have been 5,798 crop residue burning events recorded in Punjab from September 15 to ***October 25 as compared to 6,134 last year. Unseasonal rains in October have pushed the dense stubble burning period to November leading to slightly lower farm fires. Stubble burning contributed 10% to the pollution on Diwali and 5-6%on Tuesday as compared to 36% on Diwali last year. *System of Air Quality and Weather Forecasting and Research (SAFAR)**Central Pollution Control Board (CPCB) ***Indian Agricultural Research Institute |
| Category | Science & Technology |
| Tags | Environment | Science | Sustainable Development | health Mobility | Down to Earth |
