A big new study, with researchers from Harvard and CREA, just uncovered something troubling about Delhi’s air: almost a third ...
As wildfire smoke blankets the East Coast, Air Quality Index and PM2.5 numbers are everywhere. Here’s what they mean. Air Quality Index, or AQI, and PM2.5, particulate matter which measures 2.5 ...
New research shows ammonium sulphate makes up nearly one-third of Delhi’s PM2.5 pollution and poses serious health risks.
Experts warn that focusing only on AQI masks the real health risks posed by chronic exposure to fine particulate matter ...
A 2025 Harvard-led study, conducted by researchers from Harvard TH Chan School of Public Health, found that sulfate particles ...
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A third of Delhi’s annual PM2.5 load is made up of secondary pollutants. This is how they are formed
Secondary aerosols formed from emissions hundreds of kilometres away can combine in the atmosphere and significantly affect ...
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Choked again - Bangkok’s PM2.5 rises above standard, orange-level alert citywide on Friday (Jan 2)
The current air quality is categorised as "starting to affect health," with the Pathum Wan district recording the highest ...
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Worst PM2.5 levels since January: What is cloud seeding? Can it help with Delhi's pollution?
NEW DELHI: Delhi recorded its worst PM2.5 levels of the year on Diwali and the day after, with pollution continuing to blanket the city well into midweek, according to a new analysis by the Centre for ...
Chonburi Province has called on residents, businesses, and local communities to closely monitor the situation regarding ...
An analysis by the Centre for Research on Energy and Clean Air (CREA) states that a large share of India’s PM2.5 pollution is ...
Its latest analysis found that ammonium sulfate accounts for 49% of PM2.5 pollution in Delhi during the post-monsoon period ...
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