City report · North Sumatra, Indonesia
Kisaran Air quality today
Air quality in Kisaran currently reads AQI 56 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 56
Moderate
- PM2.5, fine particles (µg/m³)
- 9.0
- tree cover
- 61.4%
- trees in this area
- 192K
- more trees needed
- 0
Measured across a 2 km radius around East Kisaran, Kota Kisaran Timur, Asahan Regency, North Sumatra, Indonesia (12.57 km²), from a satellite image of Aug 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Kisaran · AQI 56 (Moderate)
Kisaran's tree count comes to 192,122 trees across 12.52 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Kisaran today: AQI 56, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 19 ground-station cities within 245 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 19 station cities within 245 km, e.g. Kecamatan Perbaungan and Kecamatan Beringin
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
9.0
PM10
15.1
NO₂
1.5
O₃
83.0
SO₂
2.4
CO
357.0
- 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 Kisaran's daily AQI at 85 on average, from 73 on Nov 5 to an hourly peak of 150 on Nov 7.
This is the US EPA AQI. How it differs from Indonesia's ISPU
Where Kisaran stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Kisaran: Healthy tree cover
61.4% tree cover against a 30% healthy-neighborhood target, across 12.52 km² of land.
Trees in this area
192,122
Target trees
192,122
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Kisaran lost?
Since 2001, the area within 10 km of Kisaran has lost about 11,000 hectares of forest (about 15,000 football pitches): 44% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from April 2017 of a 5 × 5 km area about 6 km northeast of the city center.
- Forest lost since 2001
- 11,000 haabout 15,000 football pitches
- Share of its forest
- 44%of what there was in 2000
- Cleared for good
- 11,000 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 766 hectares a year in 2021–2025, up from 339 hectares a year in 2016–2020. The worst year was 2025, when about 1,570 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 | 416 ha | under 1 ha | 416 ha |
| 2002 | 193 ha | under 1 ha | 193 ha |
| 2003 | 247 ha | under 1 ha | 247 ha |
| 2004 | 714 ha | under 1 ha | 714 ha |
| 2005 | 724 ha | under 1 ha | 724 ha |
| 2006 | 434 ha | under 1 ha | 434 ha |
| 2007 | 320 ha | under 1 ha | 320 ha |
| 2008 | 14 ha | under 1 ha | 14 ha |
| 2009 | 294 ha | under 1 ha | 294 ha |
| 2010 | 507 ha | under 1 ha | 507 ha |
| 2011 | 413 ha | under 1 ha | 413 ha |
| 2012 | 357 ha | under 1 ha | 357 ha |
| 2013 | 160 ha | under 1 ha | 160 ha |
| 2014 | 517 ha | under 1 ha | 517 ha |
| 2015 | 201 ha | under 1 ha | 201 ha |
| 2016 | 296 ha | under 1 ha | 296 ha |
| 2017 | 306 ha | under 1 ha | 306 ha |
| 2018 | 95 ha | under 1 ha | 95 ha |
| 2019 | 745 ha | under 1 ha | 745 ha |
| 2020 | 252 ha | under 1 ha | 252 ha |
| 2021 | 635 ha | under 1 ha | 635 ha |
| 2022 | 215 ha | under 1 ha | 215 ha |
| 2023 | 186 ha | under 1 ha | 186 ha |
| 2024 | 1,220 ha | under 1 ha | 1,220 ha |
| 2025 | 1,570 ha | 1 ha | 1,570 ha |
What is causing deforestation around Kisaran?
- Farms, pasture and plantationscleared for goodover 99% · 11,000 ha
Also: towns and roads, 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
- 27,100 ha
- Forest in 2020
- 27,300 ha
- Overall change
- +193 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Kisaran stayed about the same size, at about 27,300 hectares: new forest grew on about 1,990 hectares, and about 1,800 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 Kisaran
Same 2 km radius, same index — so they compare directly.
- Tanjungbalai20.6 km
Indonesia
- Tree cover
- 36%
- Air quality
- 54
- Pematangsiantar60.8 km
Indonesia
- Tree cover
- 24%
- Air quality
- 35
- Tebingtinggi63.2 km
Indonesia
- Tree cover
- 35%
- Air quality
- 52
- Perbaungan97.8 km
Indonesia
- Tree cover
- 54%
- Air quality
- 128
- Rantauprapat101.3 km
Indonesia
- Tree cover
- 47%
- Air quality
- 26
- Percut109.7 km
Indonesia
- Tree cover
- 30%
- Air quality
- 128
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Frequently asked
Questions about Kisaran
What is the air quality (AQI) in Kisaran right now?
The latest reading for Kisaran shows an AQI of 56 (Moderate), observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 19 ground-station cities within 245 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 Kisaran today?
At AQI 56 (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 Kisaran been like this week?
Over the last 7 days, the CAMS air-quality model put Kisaran's daily AQI at 85 on average, from 73 on Nov 5 to an hourly peak of 150 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
Is Kisaran'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 Kisaran lost since 2001?
Since 2001, the area within 10 km of Kisaran has lost about 11,000 hectares of forest (about 15,000 football pitches): 44% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is speeding up: about 766 hectares a year in 2021–2025, up from 339 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Kisaran stayed about the same size, at about 27,300 hectares: new forest grew on about 1,990 hectares, and about 1,800 hectares were lost.
What is the tree count in Kisaran?
Kisaran has an estimated 192,122 trees across the 12.52 km² of land measured — 61.4% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Kisaran need?
Kisaran has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Kisaran'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 East Kisaran; the tree count is an estimate derived from that cover.
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