NO₂ in India

Reddish-brown gas produced by high-temperature combustion. A key marker of vehicular pollution and a precursor to ozone and PM2.5.

Live NO₂ levels — top Indian cities right now

Where NO₂ comes from

• Diesel vehicles
• Coal and gas power plants
• Industrial boilers
• Gas stoves and kerosene heaters indoors

How NO₂ harms human health

• Inflammation of airways
• Increased asthma attacks in children
• Reduced lung development
• Increased susceptibility to respiratory infections

What you can do

Reduce personal exposure with N95 masks during peak hours, run a HEPA purifier indoors, and switch to clean transport where possible. Push for systemic change: file an RTI, attend NCAP city consultations, demand transparent station data from your municipality.

Set NO₂ alerts for your city →

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