Archive · 27 May 2025
DTU Study: Roadside Air in Delhi Contains High Nanoparticle Levels
Scientists in Delhi studied tiny air pollutants called nanoparticles, especially near roads.
They found much more of these particles near roads than other places, and even more after Covid due to more cars.
These nanoparticles can get deep into your lungs, especially in kids.
The research shows that the air pollution standards need to be made stronger to help make the air safer.
Research found 30% higher nanoparticle concentrations near roads compared to other areas.
Post-Covid, nanoparticle levels increased by 35% due to rising traffic.
Nanoparticles emitted from vehicles are found in different sizes depending on the combustion.
Infants face greater risks due to their developing respiratory systems.
The study suggests strengthening current anti-pollution standards.
- Who
- Delhi Technological University (DTU) researchers, including Rajeev Kumar Mishra and Kanagaraj Rajagopal, conducted the study.
- What
- Research analyzed nanoparticle deposits in lungs near roads, revealing high concentrations and potential health risks.
- When
- The research spanned a year, examining seasonal variations.
- Where
- The study focused on northern Delhi, India.
- Why
- To analyze atmospheric nanoparticle concentration in urban roadside environments and their deposition in the human respiratory tract.
- Lead Researchers
- Rajeev Kumar Mishra, Kanagaraj Rajagopal
- Location
- Northern Delhi, India
- Increase post-COVID
- 35%
- Deposition in Alveoli
- Approximately 0.05 µg per day near road
- Seasonal Influence
- Boundary layer height, wind speed, precipitation affect concentration