Delhi’s evening commute may be far more hazardous than its already notorious smog suggests.

A new five-year analysis has found that people travelling during the city’s post-work rush hours inhale nearly 40 percent higher doses of particulate matter (PM) 2.5 and 23 percent higher concentrations of PM10 compared to morning commuters.

The study, conducted by researchers from Netaji Subhas University of Technology and AARC Engineers and Consultants India, offers one of the most comprehensive insights yet into how daily, seasonal, and geographical variations shape real-time pollution exposure in the national capital.

India continues to rank among the countries worst affected by air pollution. According to the IQAir World Air Quality Report 2023, nine of the ten most polluted cities in the wo

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