As pollution peaks across Delhi, many stns go blank

Several air quality monitoring stations in Delhi, including RK Puram, went offline for hours on Diwali night, leaving critical PM2.5 data missing during peak pollution hours. Experts said the data gaps skewed average readings and hindered analysis of pollution sources. Sunil Dahiya, founder of EnviroCatalysts, said missing data hampers understanding of pollution trends and called for improved data transparency and monitoring practices.