Harvard study finds one-third of Delhi’s PM2.5 is ammonium sulfate: What is it and how harmful is it for human health

A big new study, with researchers from Harvard and CREA, just uncovered something troubling about Delhi’s air: almost a third ...
TODAYonline

Explainer: Confused over AQI, PSI, PM2.5? With the haze threat back, here’s how to interpret the various air quality readings

Besides PSI readings and PM2.5, other readings are available online, such as the World Air Quality Index website (aqicn.org). For example, Singapore’s AQI was 132 at 6pm on Friday, which is classified ...
Indiatimes

Delhi pollution: Under test conditions, this technology cut PM2.5 by 90%

National Physical Laboratory of India (NPLI) on Tuesday certified a ground-level air purifying technology that can improve air quality even in an open environment. Therefore, it might be possible to ...