City report · Māzandarān, Iran
Chālūs Air quality today
Air quality in Chālūs currently reads AQI 32 (Good): Air quality is satisfactory for everyone.
AQI 32
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 5.7
- tree cover
- 32.4%
- trees in this area
- 102K
- more trees needed
- 0
Measured across a 2 km radius around Chalus, Mazandaran Province, Iran (12.57 km²), from a satellite image of Sep 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Chālūs · AQI 32 (Good)
Chālūs's tree count comes to 101,788 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Chālūs today: AQI 32, Good
Main pollutant: PM2.5 · Observed Nov 11, 14:30 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
5.7
PM10
6.9
NO₂
1.9
O₃
78.0
SO₂
7.7
CO
124.0
- 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 Chālūs's daily AQI at 31 on average, from 4 on Nov 9 to an hourly peak of 86 on Nov 5.
Where Chālūs stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Chālūs: Healthy tree cover
32.4% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
101,788
Target trees
101,788
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Chālūs lost?
Since 2001, the area within 10 km of Chālūs has lost about 23 hectares of forest (about 32 football pitches): under 1% of the forest it had in 2000. Most of it (80%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 23 haabout 32 football pitches
- Share of its forest
- under 1%of what there was in 2000
- Cleared for good
- 18 hadeforestation: turned into farms, mines or towns
The worst year was 2010, when about 6 hectares 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 | 5 ha | under 1 ha | 5 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 2 ha | under 1 ha | 2 ha |
| 2005 | 2 ha | under 1 ha | 2 ha |
| 2006 | 2 ha | under 1 ha | 2 ha |
| 2007 | 2 ha | under 1 ha | 2 ha |
| 2008 | 1 ha | under 1 ha | 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | 4 ha | 1 ha | 6 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | 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 Chālūs?
- Towns and roadscleared for good80% · 18 ha
- Loggingcan grow back3.1% · under 1 ha
- Unknown causescause unknown17% · 4 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
- 11,300 ha
- Forest in 2020
- 11,300 ha
- Overall change
- −26 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Chālūs stayed about the same size, at about 11,300 hectares: new forest grew on about 31 hectares, and about 57 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 Chālūs
Same 2 km radius, same index — so they compare directly.
- Āmol85.6 km
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- 6%
- Air quality
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- Karaj99.2 km
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- Air quality
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- Kamālshahr100.9 km
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- Air quality
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- Naz̧arābād106.8 km
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- Air quality
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- Tehran106.8 km
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- Air quality
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- Pardīs106.9 km
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- Tree cover
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- Air quality
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Frequently asked
Questions about Chālūs
What is the air quality (AQI) in Chālūs right now?
The latest reading for Chālūs shows an AQI of 32 (Good), observed Nov 11, 14:30 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 Chālūs today?
At AQI 32 (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 Chālūs been like this week?
Over the last 7 days, the CAMS air-quality model put Chālūs's daily AQI at 31 on average, from 4 on Nov 9 to an hourly peak of 86 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Chālūs lost since 2001?
Since 2001, the area within 10 km of Chālūs has lost about 23 hectares of forest (about 32 football pitches): under 1% of the forest it had in 2000. Most of it (80%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Chālūs stayed about the same size, at about 11,300 hectares: new forest grew on about 31 hectares, and about 57 hectares were lost.
What is the tree count in Chālūs?
Chālūs has an estimated 101,788 trees across the 12.57 km² measured — 32.4% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Chālūs need?
Chālūs has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Chālūs'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 Chalus; the tree count is an estimate derived from that cover.
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