Delhi govt–IIT Madras MoU to test 'smog-eating' photocatalytic coatings on roads

Exam-focused facts from the 24 March 2026 current affairs briefing.

Key facts

Delhi government signed a six-month collaboration with Indian Institute of Technology Madras (IIT Madras) on 13 March to evaluate photocatalytic coatings that break down nitrogen dioxide (NO₂) and volatile organic compounds (VOCs).
The project is funded by the Delhi government and led by Professor Somnath C Roy of IIT Madras.
Laboratory testing will precede field trials in Delhi; specific trial locations are yet to be decided.
Titanium dioxide (TiO₂) surfaces will be assessed for their ability to dismantle pollutants under sunlight.
Deployment modes under study include mixing TiO₂ into concrete and asphalt, applying it as coatings, and developing rooftop or streetlight-mounted panels.