Ground-level ozone pollution: An emerging public health crisis in Delhi
Delhi is facing an escalating public health crisis as dangerous ground-level ozone (O3) pollution surges, displacing particulate matter as the city's dominant summer pollutant. New research from IIT Kharagpur and Kerala University highlights a critical link: heatwaves are drastically intensifying O3 formation, leading to over 26,500 associated deaths in India in 2024 from ischemic heart disease and chronic obstructive pulmonary disease (COPD) during these extreme weather events. This invisible, toxic gas, a byproduct of vehicle and industrial emissions reacting with intense sunlight, is now pervading residential areas for prolonged periods, marking a dire shift in the capital's perennial struggle for breathable air.















