City report · West Java, Indonesia
Cianjur Air quality today
Air quality in Cianjur currently reads AQI 63 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 63
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 20.0
- tree cover
- 24.4%
- trees in this area
- 75.4K
- more trees needed
- 17.3K
Measured across a 2 km radius around Cianjur, Cianjur Regency, West Java, Indonesia (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Cianjur · AQI 63 (Moderate)
Cianjur's tree count comes to 75,428 trees across 12.37 km² of land, 6 points below the 30% tree-cover level considered healthy for this area, so roughly 17,311 more trees would close the gap.
Air quality detail
Air quality in Cianjur today: AQI 63, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 18:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 85 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 2 station cities within 85 km, e.g. Bekasi and South Jakarta
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
20.0
PM10
79.9
NO₂
38.3
O₃
109.0
SO₂
19.1
CO
1320.0
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Cianjur's daily AQI at 138 on average, from 115 on Nov 11 to an hourly peak of 204 on Nov 8.
This is the US EPA AQI. How it differs from Indonesia's ISPU
Where Cianjur stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Cianjur: Below target
24.4% tree cover against a 30% healthy-neighborhood target, across 12.37 km² of land.
Trees in this area
75,428
Target trees
92,739
More trees needed
17,311
CO₂ if planted / yr
380.8 t
Deforestation · 2001–2025
How much forest has Cianjur lost?
Since 2001, the area within 10 km of Cianjur has lost about 479 hectares of forest (about 670 football pitches): 3% of the forest it had in 2000. Most of it (84%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km north of the city center.
- Forest lost since 2001
- 479 haabout 670 football pitches
- Share of its forest
- 3%of what there was in 2000
- Cleared for good
- 402 hadeforestation: turned into farms, mines or towns
The worst year was 2008, when about 44 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 | 22 ha | 4 ha | 26 ha |
| 2002 | 8 ha | 2 ha | 10 ha |
| 2003 | 2 ha | under 1 ha | 3 ha |
| 2004 | 7 ha | 2 ha | 9 ha |
| 2005 | 6 ha | under 1 ha | 6 ha |
| 2006 | 19 ha | 4 ha | 23 ha |
| 2007 | 22 ha | 10 ha | 32 ha |
| 2008 | 41 ha | 3 ha | 44 ha |
| 2009 | 21 ha | 6 ha | 27 ha |
| 2010 | 18 ha | 2 ha | 21 ha |
| 2011 | 23 ha | under 1 ha | 23 ha |
| 2012 | 19 ha | 2 ha | 21 ha |
| 2013 | 5 ha | under 1 ha | 5 ha |
| 2014 | 12 ha | under 1 ha | 13 ha |
| 2015 | 17 ha | under 1 ha | 18 ha |
| 2016 | 12 ha | 1 ha | 13 ha |
| 2017 | 32 ha | 5 ha | 37 ha |
| 2018 | 23 ha | 7 ha | 29 ha |
| 2019 | 10 ha | 12 ha | 22 ha |
| 2020 | 18 ha | 6 ha | 24 ha |
| 2021 | 10 ha | 2 ha | 12 ha |
| 2022 | 11 ha | 2 ha | 14 ha |
| 2023 | 19 ha | 2 ha | 21 ha |
| 2024 | 14 ha | under 1 ha | 15 ha |
| 2025 | 13 ha | under 1 ha | 13 ha |
What is causing deforestation around Cianjur?
- Farms, pasture and plantationscleared for good71% · 342 ha
- Towns and roadscleared for good12% · 59 ha
- Loggingcan grow back11% · 54 ha
Also: storms, floods and other natural causes, unknown causes.
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
- 15,400 ha
- Forest in 2020
- 15,000 ha
- Overall change
- −337 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Cianjur shrank from about 15,400 hectares to 15,000 hectares, a net loss of about 337 hectares (−2.2%). New forest grew on about 139 hectares, but 477 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 Cianjur
Same 2 km radius, same index — so they compare directly.
- Sukabumi25.8 km
Indonesia
- Tree cover
- 27%
- Air quality
- 97
- Padalarang36.9 km
Indonesia
- Tree cover
- 29%
- Air quality
- 111
- Purwakarta44.7 km
Indonesia
- Tree cover
- 26%
- Air quality
- 153
- Cimahi44.8 km
Indonesia
- Tree cover
- 11%
- Air quality
- 90
- Bogor46.2 km
Indonesia
- Tree cover
- 30%
- Air quality
- 184
- Cibinong49.3 km
Indonesia
- Tree cover
- 23%
- Air quality
- 184
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Frequently asked
Questions about Cianjur
What is the air quality (AQI) in Cianjur right now?
The latest reading for Cianjur shows an AQI of 63 (Moderate), observed Nov 11, 18:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 85 km, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Cianjur today?
At AQI 63 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Cianjur been like this week?
Over the last 7 days, the CAMS air-quality model put Cianjur's daily AQI at 138 on average, from 115 on Nov 11 to an hourly peak of 204 on Nov 8. On 7 of those days the average was above 100, unhealthy for sensitive groups.
Is Cianjur's AQI the same as Indonesia's ISPU?
No. Airleaf shows the US EPA Air Quality Index (AQI), the scale used by IQAir and most air-quality apps. Indonesia's official index is the ISPU (Indeks Standar Pencemar Udara), published by the environment ministry from its own monitoring stations. Its bands are 0–50 Baik (good), 51–100 Sedang (moderate), 101–200 Tidak Sehat (unhealthy), 201–300 Sangat Tidak Sehat (very unhealthy) and over 300 Berbahaya (hazardous). The two indexes use different breakpoints and averaging times, so the same air can score differently on each.
How much forest has the area around Cianjur lost since 2001?
Since 2001, the area within 10 km of Cianjur has lost about 479 hectares of forest (about 670 football pitches): 3% of the forest it had in 2000. Most of it (84%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Cianjur shrank from about 15,400 hectares to 15,000 hectares, a net loss of about 337 hectares (−2.2%). New forest grew on about 139 hectares, but 477 hectares were lost.
What is the tree count in Cianjur?
Cianjur has an estimated 75,428 trees across the 12.37 km² of land measured — 24.4% tree cover, 6 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Cianjur need?
Cianjur needs roughly 17,311 more trees to close a 6-point shortfall against its 30% tree-cover target — about 380.8 t of extra CO₂ absorbed per year once grown.
How are Cianjur'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 Cianjur; the tree count is an estimate derived from that cover.
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