Varanasi Air Quality Index (AQI)
India's holiest city faces a unique pollution mix: open wood-pyre cremations at ancient ghats, dense traffic in narrow lanes, crop burning smoke from the northwest, and severe IGP winter inversions. AQI routinely exceeds 200 in winter.
Monthly AQI — Varanasi
The Ghats & Air Quality
Varanasi's 84 ghats along the Ganges are central to its culture and a unique air quality consideration.
Cremation Ghats
- • 80–100 cremations daily, 24/7
- • 200–400 kg wood per cremation
- • PM2.5, CO, dioxins released
- • Locally elevated — worst near Manikarnika
Festival Events
- • Dev Deepawali (Nov): 1M+ oil lamps
- • Diwali fireworks: AQI spikes 300+
- • Ganga Aarti: daily incense burning
- • Cumulatively secondary to traffic + industry
Frequently Asked Questions
How does religious burning at Varanasi's ghats affect air quality?
Varanasi's Manikarnika and Harishchandra ghats are the world's most active open-air cremation sites — estimates suggest 80–100 cremations daily using wood pyres. Each cremation burns 200–400 kg of wood, releasing PM2.5, CO, NOx, and dioxins. The ghats are in a narrow river valley where smoke rises and can be trapped. Additional religious burning includes constant ghee lamps, incense, and the spectacular Dev Deepawali festival (November) when over a million earthen lamps burn along the ghats. These sources add a measurable but quantitatively secondary contribution on top of the dominant vehicle + industrial + crop burning sources.
Is Varanasi's air quality dangerous for tourists?
For short-term healthy visitors, Varanasi is manageable. However, winter visits (November–February) coincide with AQI often in the 200–300 range — genuinely Unhealthy. The narrow lanes of the old city with dense vehicle traffic add localized NO2 and PM2.5 exposure above the city average. Visitors with respiratory conditions should visit in March–April or September–October and monitor IQAir or CPCB's Varanasi station. Morning ghats visits during high-AQI days involve significant smoke exposure.
What's the relationship between crop burning and Varanasi's AQI?
Varanasi is 100+ km downwind of the Punjab-Haryana crop burning belt, but still receives significant smoke transport in October–November. Prevailing northwesterly winds channel smoke from millions of burning fields through the IGP, adding 30–60 μg/m³ of PM2.5 for 3–4 weeks. Combined with Varanasi's own vehicle and industrial sources under winter inversions, this creates peak AQI events of 300–400.
What is the UP government doing about Varanasi's air?
Varanasi received significant infrastructure investment as part of PM Modi's constituency development — but clean air was not the primary focus. Road widening has displaced some congestion but hasn't reduced vehicle numbers. CNG auto-rickshaws were promoted in the city center. The Kashi Vishwanath Corridor project restructured some areas around the temple, reducing some street-level congestion. Varanasi is included in India's NCAP but specific enforcement in the old city's narrow lanes is challenging.