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Study: Men walking on roads inhaling highest toxic air levels

Hindustan Times Noida

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December 22, 2025

A new five-year study has flagged that exposure to pollution varies by gender, the type of physical activity and time of day, with men walking along Delhi's roadsides inhaling the highest doses of toxic air.

- Jasjeev Gandhiok

The study, carried out by Netaji Subhas University of Technology analysed particulate pollution data between 2019 and 2023. to calculate the respiratory deposition doses (RDD), the amount of particulate matter that actually settles in the lungs. It was published in the peer-reviewed Nature journal on November 28.

Titled Respiratory Deposition of Particulate Matter in Delhi: A Five-Year Assessment of Exposure Patterns and Health Risks, the research was carried out in collaboration with Noida-based environmental consultancy, AARC Engineers and Consultants India Pvt Ltd, and used Central Pollution Control Board (CPCB) data on PM 2.5 and PM 10 to estimate RDDs for adult men and women at both 15-minute and daily intervals.

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