Characterization and health risk assessment of airborne microplastics in Delhi NCR.

ABSTRACT: Exposure to airborne microplastics (MPs) is an emerging environmental and public health concern due to their widespread presence and potential toxicity. This study presents the first comprehensive characterization of airborne MPs in Delhi, India, focusing on their seasonal distribution, morphology, chemical composition, and associated health risks. Particulate matter (PM₁₀, PM₂.₅, and PM₁) was collected using active samplers at Lodhi Road during winter (January-March) and summer (April-June) of 2024. Average(± SD) concentrations of MPs were 1.87 ± 0.5 MPs/m³ for PM₁₀, 0.51 ± 0.2 MPs/m³ for PM₂.₅, and 0.49 ± 0.2 MPs/m³ for PM₁, with notable seasonal variation. Fragments (66%) and fibers (32%) were the dominant morphologies, primarily white/transparent and bl

SUBMITTER: Rao MN 

PROVIDER: S-EPMC12263988 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature