City in Bagmati Province, Nepal
Air quality in Patan
Severely polluted
The annual average PM2.5 in Patan was 37 µg/m³ in 2020, about 7.4 times the WHO guideline of 5 µg/m³. Kathmandu Valley has severe winter and pre-monsoon pollution (PM2.5), often unhealthy from Nov to Apr; wear an N95 and check air-quality apps.
Key facts
- PM2.5: 37 µg/m³ yearly average (2020). Measured at Kathmandu, 3 km away.
- PM10: 55.3 µg/m³ (2020).
- Worst months: Nov–Apr.
- Recent average: 38.3 µg/m³ over the last five years of measurements.
PM2.5 by year
| Year | Annual average |
|---|---|
| 2020 | |
| 2019 | |
| 2016 |
Air quality across Nepal
Quick answers
Is the air in Patan bad?
Severely polluted: 37 µg/m³ of PM2.5 on average, 7.4× the WHO guideline. It's usually worst in Nov–Apr.
When is the air worst in Patan?
Kathmandu Valley has severe winter and pre-monsoon pollution (PM2.5), often unhealthy from Nov to Apr; wear an N95 and check air-quality apps.
How does Patan compare with the rest of Nepal?
People in Nepal breathe 53 µg/m³ of PM2.5 on average (2023, World Bank/WHO), against 37 µg/m³ measured here.
More about Patan
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Sources
- WHO Ambient Air Quality Database
- WHO air quality guidelines (2021)
- Live air quality map (WAQI)
- Civil Aviation Authority of Nepal
- Pathao Nepal
- CIWEC Hospital
Annual averages are measured values reported to the WHO; check a live map for today's air. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.