Gas chamber? Rising mercury drives ozone beyond safe limit: Times of India

"NEW DELHI: Not just extreme heat, air pollution levels are also peaking in many parts of the city. Even ozone (O3) levels are beginning to cross the safe standard — PM2.5 concentrations are already nearly twice the safe limit at most locations. While the winter smog is visible to the naked eye, high O3 levels … Continue reading Gas chamber? Rising mercury drives ozone beyond safe limit: Times of India

UPDATE 1-With world’s worst air, Indian city struggles to track pollution: Reuters

"KANPUR, India, May 16 (Reuters) - In the world’s most polluted city, Kanpur in northern India, the biggest hospital is so overcrowded with patients with respiratory ailments that they are often bedded in the ophthalmology ward."   Reuters Read it on Delhiair.org: UPDATE 1-With world's worst air, Indian city struggles to track pollution