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The study analysed nanoparticles (10 to 1090 nanometers in diameter) in the city in 2021, over two periods from April to June, and October to November. These “very small particles” may come from natural sources or from human activities.

Kanagaraj rajagopalRajeev kumar mishraAtmospheric sciences divisionDepartment of enviro nmental engineeringDelhi technological universityResearch laboratoryEnviro nmental engineeringPhysical research laboratoryUrban climateBawana roadAcute illnessElhis air pollutionVehicular emissionsEry small particlesNdian express news