Health and Fitness

Cumulative effect of PM2.5 components is larger than the effect of PM2.5 mass on child health in India

E. Chaudhary, F. George, et al.

This groundbreaking study reveals that increasing PM2.5 exposure in India leads to significant rises in child health issues such as anemia, acute respiratory infections, and low birth weight. Conducted by a team of experts, including Ekta Chaudhary and Sagnik Dey, the research emphasizes the necessity of focusing on specific PM2.5 components rather than total mass for effective health strategies.

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Abstract

This study investigates the differential effects of PM2.5 components on child health in India. Using multiple logistic regression, the researchers found that for every 10 µg/m³ increase in PM2.5 exposure, the prevalence of anemia, acute respiratory infection (ARI), and low birth weight (LBW) increased by 10%, 11%, and 5%, respectively. NO3, elemental carbon, and NH4+ were most strongly associated with these health outcomes. The study concludes that using total PM2.5 mass as a surrogate marker underestimates the true impact of PM2.5 components and that prioritizing control strategies for more toxic species is crucial for improving child health in India.

Publisher

Nature Communications

Published On

Oct 31, 2023

Authors

Ekta Chaudhary, Franciosalgeo George, Aswathi Saji, Sagnik Dey, Santu Ghosh, Tinku Thomas, Anura V. Kurpad, Sumit Sharma, Nimish Singh, Shivang Agarwal, Unnati Mehta

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