Kya hua
IITM ki nayi inaugurated Aatal lab ne 20 se 24 October ke beech Delhi ke PM2.5 ko divide kiya aur daily load mein 29.3 se 42.2% in-atmosphere aerosols (secondary) paaye.
Mujhe kya farq padta hai
Delhi ke logon ke liye, sardiyon mein bhi 'poor' hawa bani hui hai jahan particulate mass ka sabse bada hissa ab bhi unattributable hai, aur shehar ko alert karne wala forecast model lagbhag ek dashak purane data par chal raha hai.
Yaad rakh
Delhi ke 25% se zyada PM2.5 aise sources se aate hain jinhe IITM abhi bhi point out nahi kar pa raha.
Aur context aur kis par asar
Is hafte Delhi ki hawa CPCB ke 'poor' band mein rahi, aur Pune mein IITM ki ek nayi lab ne yeh apportion karna shuru kar diya hai ki yeh PM2.5 asal mein kahan se aata hai. Iske apne scientists maante hain ki picture abhi sirf half-solved hai.
20 se 24 October tak ki gayi Aatal source study kehti hai ki secondary sources — hawa mein gases jo particles mein convert hoti hain — daily PM2.5 ka 29.3 se 42.2% hissa hain. Gaadiyan doosre number par 19.4 se 27.6% ke saath aati hain, jo us reactive mass se kaafi peeche hai jise IITM abhi tak kisi original emitter tak trace nahi kar pa raha.
Is gap ko aur badhate hue, Delhi ke liye IITM jo DSS forecast model use karta hai woh ab bhi 2016 ke surveys par bani 2021 ki emissions inventory par chal raha hai, jiske replacement ka sirf June 2027 tak ka vaada kiya gaya hai.
- PM2.5 mein secondary sources ka share
- 29.3 to 42.2% 20-24 October ke liye IITM Aatal lab ka estimate, gaadiyon ke 19.4-27.6% se aage.Hindustan Times
- DSS emissions inventory ki umr
- 2021 (from 2016 surveys) Replacement sirf June 2027 tak; koi nitrate ya SOA chemistry simulate nahi ki gayi.Hindustan Times
- Aatal lab ki cost aur scope
- Rs 80 crore, 25 instruments Pune ke New Rajendra Nagar mein IITM Aatal lab, jiska inauguration 24 October ko Union MoS Jitendra Singh ne kiya.Hindustan Times
Timeline
- 20-24 October — IITM Aatal lab ne 29.3 se 42.2% secondary PM2.5 record kiya.
- 24 October — Union MoS Jitendra Singh ne Pune mein 80 crore rupaye ki Aatal lab ka inauguration kiya.
- June 2027 — IITM ki 2021 emissions inventory ko replace karne ki deadline.
General Public
Delhi ke logon ne poore hafte 'poor' hawa mein saans li, jahan particulate mass ka sabse bada hissa ab bhi unattributable raha.
Environment Watchers
29.3 se 42.2% PM2.5 unattributed secondary sources se aane ke karan, IITM regulators ko target karne ke liye kisi ek emitter ki taraf point nahi kar sakta.
Urban Health Readers
Delhi alerts ke liye use hone wala DSS forecast model ab bhi 2016 ke surveys se li gayi 2021 ki emissions inventory par chal raha hai, jiska replacement sirf June 2027 tak hona hai.
ReportingHindustan Times ↗NDTV ↗
Sources aur jaanch2 sources · 4 daave
Yeh is khabar ke source records hain. Source link hona apne aap mein independent confirmation nahi hai.
- Hindustan TimesReporting
Delhi gets pollution source data, but a big chunk stays unexplained ↗
Publish hua Oct 25, 2026 · Dekha gaya Oct 25, 2026 - NDTVReporting
Mumbai Air 'Very Poor' At 322 As Delhi Records Best October 24 In A Decade ↗
Publish hua Oct 24, 2026 · Dekha gaya Oct 25, 2026
Daave aur unke sources
IITM ki Aatal lab ne 20 se 24 October ke beech daily PM2.5 mein secondary sources ko 29.3 se 42.2% par rakha hai, jo gaadiyon ke 19.4 se 27.6% se aage hai.
IITM ke paas abhi tak in reactive secondary aerosols ko kisi original emitting source se attribute karne ka koi system nahi hai.
Delhi ke liye IITM jo DSS forecast model use karta hai woh ab bhi 2016 ke surveys par bani 2021 ki emissions inventory par chal raha hai, jiske replacement ka sirf June 2027 tak ka vaada kiya gaya hai.
Union MoS Jitendra Singh ne 24 October ko Pune ke New Rajendra Nagar mein 80 crore rupaye ki Aatal lab ka inauguration kiya, jisne Delhi ko lagbhag teen saal mein pehli baar pollution source breakdown diya.
