City report · Nepal
Janakpur Air quality today
Air quality in Janakpur currently reads AQI 162 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
AQI 162
Air quality right now
Unhealthy
- PM2.5, fine particles (µg/m³)
- 71.1
- tree cover
- 28.4%
- trees in this area
- 88.7K
- more trees needed
- 36.2K
Measured across a 2 km radius around Janakpur, Madhesh Province, Nepal (12.57 km²), from a satellite image of Sep 20, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Janakpur · AQI 162 (Unhealthy)
Janakpur's tree count comes to 88,686 trees across 12.49 km² of land, 12 points below the 40% tree-cover level considered healthy for this area, so roughly 36,224 more trees would close the gap.
Air quality detail
Air quality in Janakpur today: AQI 162, Unhealthy
Main pollutant: PM2.5 · Observed Nov 13, 01:45 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Janakpurdham SMC-08, Janaki Eye Hospital, 1.5 km away
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
71.1
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · AirGradient, Clean Energy Nepal (CEN)
- Outdoor exercise
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Janakpur's daily AQI at 154 on average, from 137 on Nov 10 to an hourly peak of 200 on Nov 6.
Where Janakpur stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Janakpur: Below target
28.4% tree cover against a 40% healthy-neighborhood target, across 12.49 km² of land.
Trees in this area
88,686
Target trees
124,910
More trees needed
36,224
CO₂ if planted / yr
796.9 t
Deforestation · 2001–2025
How much forest has Janakpur lost?
There was very little forest around Janakpur in 2000, about 71 hectares, and about 5 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from February 2017 of a 5 × 5 km area in the city center.
The worst year was 2010, when about 1 hectare of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Janakpur?
- Farms, pasture and plantationscleared for good52% · 2 ha
- Unknown causescause unknown50% · 2 ha
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 1,130 ha
- Forest in 2020
- 1,500 ha
- Overall change
- +371 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Janakpur grew from about 1,130 hectares to 1,500 hectares, a net gain of about 371 hectares (+33%). New forest grew on about 379 hectares, while 8 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Janakpur
What is the air quality (AQI) in Janakpur right now?
The latest reading for Janakpur shows an AQI of 162 (Unhealthy), measured Nov 13, 01:45 local time by the Janakpurdham SMC-08, Janaki Eye Hospital ground monitoring station, 1.5 km away, via OpenAQ. The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Janakpur today?
At AQI 162 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Janakpur been like this week?
Over the last 7 days, the CAMS air-quality model put Janakpur's daily AQI at 154 on average, from 137 on Nov 10 to an hourly peak of 200 on Nov 6. On 7 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Janakpur lost since 2001?
There was very little forest around Janakpur in 2000, about 71 hectares, and about 5 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Janakpur grew from about 1,130 hectares to 1,500 hectares, a net gain of about 371 hectares (+33%). New forest grew on about 379 hectares, while 8 hectares were lost.
What is the tree count in Janakpur?
Janakpur has an estimated 88,686 trees across the 12.49 km² of land measured — 28.4% tree cover, 12 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Janakpur need?
Janakpur needs roughly 36,224 more trees to close a 12-point shortfall against its 40% tree-cover target — about 796.9 t of extra CO₂ absorbed per year once grown.
How are Janakpur's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Janakpur, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Janakpur; the tree count is an estimate derived from that cover.
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