City report · Gilan Province, Iran
Lāhījān Air quality today
Air quality in Lāhījān currently reads AQI 16 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 16
Good
- PM2.5, fine particles (µg/m³)
- 3.2
- tree cover
- 26.6%
- trees in this area
- 82.2K
- more trees needed
- 10.5K
Measured across a 2 km radius around Lahijan, Gilan Province, Iran (12.57 km²), from a satellite image of Sep 21, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Lāhījān · AQI 16 (Good)
Lāhījān's tree count comes to 82,229 trees across 12.37 km² of land, 3 points below the 30% tree-cover level considered healthy for this area, so roughly 10,511 more trees would close the gap.
Air quality detail
Air quality in Lāhījān today: AQI 16, Good
Main pollutant: PM2.5 · Observed Nov 10, 17:30 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.2
PM10
3.6
NO₂
8.2
O₃
59.0
SO₂
1.6
CO
166.0
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Lāhījān's daily AQI at 32 on average, from 5 on Nov 9 to an hourly peak of 73 on Nov 4.
Where Lāhījān stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Lāhījān: Below target
26.6% tree cover against a 30% healthy-neighborhood target, across 12.37 km² of land.
Trees in this area
82,229
Target trees
92,740
More trees needed
10,511
CO₂ if planted / yr
231.2 t
Deforestation · 2001–2025
How much forest has Lāhījān lost?
Since 2001, the area within 10 km of Lāhījān has lost about 2 hectares of forest: under 1% of the forest it had in 2000. The biggest cause was farms, pasture and plantations (27%). Almost none of it was deforestation, meaning forest cleared for good.
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 2 ha
- Share of its forest
- under 1%of what there was in 2000
- Cleared for good
- under 1 hadeforestation: turned into farms, mines or towns
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 | under 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 Lāhījān?
- Farms, pasture and plantationscleared for good27% · under 1 ha
- Unknown causescause unknown67% · 1 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
- 7,340 ha
- Forest in 2020
- 7,250 ha
- Overall change
- −91 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Lāhījān stayed about the same size, at about 7,250 hectares: new forest grew on about 34 hectares, and about 125 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
In the same region
Measured cities near Lāhījān
Same 2 km radius, same index — so they compare directly.
- Rasht38.1 km
Iran
- Tree cover
- 11%
- Air quality
- 44
- Bandar-e Anzalī57.2 km
Iran
- Tree cover
- 20%
- Air quality
- 11
- Qazvin104.0 km
Iran
- Tree cover
- 5%
- Air quality
- 64
- Chālūs139.5 km
Iran
- Tree cover
- 32%
- Air quality
- 32
- Zanjan146.7 km
Iran
- Tree cover
- 4%
- Air quality
- 37
- Naz̧arābād148.9 km
Iran
- Tree cover
- 3%
- Air quality
- 85
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Frequently asked
Questions about Lāhījān
What is the air quality (AQI) in Lāhījān right now?
The latest reading for Lāhījān shows an AQI of 16 (Good), observed Nov 10, 17:30 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Lāhījān today?
At AQI 16 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Lāhījān been like this week?
Over the last 7 days, the CAMS air-quality model put Lāhījān's daily AQI at 32 on average, from 5 on Nov 9 to an hourly peak of 73 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Lāhījān lost since 2001?
Since 2001, the area within 10 km of Lāhījān has lost about 2 hectares of forest: under 1% of the forest it had in 2000. The biggest cause was farms, pasture and plantations (27%). Almost none of it was deforestation, meaning forest cleared for good. Comparing satellite maps from 2000 and 2020, the forest around Lāhījān stayed about the same size, at about 7,250 hectares: new forest grew on about 34 hectares, and about 125 hectares were lost.
What is the tree count in Lāhījān?
Lāhījān has an estimated 82,229 trees across the 12.37 km² of land measured — 26.6% tree cover, 3 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Lāhījān need?
Lāhījān needs roughly 10,511 more trees to close a 3-point shortfall against its 30% tree-cover target — about 231.2 t of extra CO₂ absorbed per year once grown.
How are Lāhījān's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Lahijan; the tree count is an estimate derived from that cover.
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