City report · North Sumatra, Indonesia
Perbaungan Air quality today
Air quality in Perbaungan currently reads AQI 128 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 128
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 46.5
- tree cover
- 54.4%
- trees in this area
- 171K
- more trees needed
- 0
Measured across a 2 km radius around Kecamatan Perbaungan, Sumatera Utara, Indonesia (12.57 km²), from a satellite image of Sep 9, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Perbaungan · AQI 128 (Unhealthy for sensitive groups)
Perbaungan's tree count comes to 170,903 trees across 12.57 km², already at or above the 35% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Perbaungan today: AQI 128, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 21:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Medan, Indonesia, 12 km away
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
46.5
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, BMKG | Badan Meteorologi, Klimatologi dan Geofisika
- Outdoor exercise
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Perbaungan's daily AQI at 97 on average, from 78 on Nov 11 to an hourly peak of 179 on Nov 6.
This is the US EPA AQI. How it differs from Indonesia's ISPU
Where Perbaungan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Perbaungan: Healthy tree cover
54.4% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
170,903
Target trees
170,903
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Perbaungan lost?
Since 2001, the area within 10 km of Perbaungan has lost about 5,170 hectares of forest (about 7,200 football pitches): 55% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2020: satellite photo from March 2020 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 5,170 haabout 7,200 football pitches
- Share of its forest
- 55%of what there was in 2000
- Cleared for good
- 5,160 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 355 hectares a year in 2021–2025, against 323 hectares a year in 2016–2020. The worst year was 2018, when about 770 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 | 37 ha | 2 ha | 38 ha |
| 2002 | 46 ha | under 1 ha | 46 ha |
| 2003 | 66 ha | 3 ha | 69 ha |
| 2004 | 70 ha | under 1 ha | 71 ha |
| 2005 | 14 ha | under 1 ha | 14 ha |
| 2006 | 81 ha | under 1 ha | 81 ha |
| 2007 | 84 ha | under 1 ha | 85 ha |
| 2008 | 26 ha | under 1 ha | 27 ha |
| 2009 | 123 ha | under 1 ha | 123 ha |
| 2010 | 125 ha | under 1 ha | 125 ha |
| 2011 | 74 ha | under 1 ha | 74 ha |
| 2012 | 320 ha | under 1 ha | 320 ha |
| 2013 | 197 ha | under 1 ha | 197 ha |
| 2014 | 424 ha | under 1 ha | 424 ha |
| 2015 | 85 ha | under 1 ha | 85 ha |
| 2016 | 268 ha | under 1 ha | 268 ha |
| 2017 | 212 ha | under 1 ha | 212 ha |
| 2018 | 770 ha | under 1 ha | 770 ha |
| 2019 | 86 ha | under 1 ha | 86 ha |
| 2020 | 278 ha | under 1 ha | 278 ha |
| 2021 | 749 ha | under 1 ha | 749 ha |
| 2022 | 95 ha | under 1 ha | 95 ha |
| 2023 | 683 ha | under 1 ha | 683 ha |
| 2024 | 165 ha | under 1 ha | 165 ha |
| 2025 | 82 ha | 1 ha | 83 ha |
What is causing deforestation around Perbaungan?
- Farms, pasture and plantationscleared for goodover 99% · 5,150 ha
Also: towns and roads, logging, 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
- 12,700 ha
- Forest in 2020
- 11,700 ha
- Overall change
- −988 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Perbaungan shrank from about 12,700 hectares to 11,700 hectares, a net loss of about 988 hectares (−7.8%). New forest grew on about 1,060 hectares, but 2,050 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 Perbaungan
Same 2 km radius, same index — so they compare directly.
- Percut12.0 km
Indonesia
- Tree cover
- 30%
- Air quality
- 128
- Medan32.2 km
Indonesia
- Tree cover
- 16%
- Air quality
- 128
- Tebingtinggi35.1 km
Indonesia
- Tree cover
- 35%
- Air quality
- 52
- Belawan38.1 km
Indonesia
- Tree cover
- 38%
- Air quality
- 113
- Binjai52.3 km
Indonesia
- Tree cover
- 50%
- Air quality
- 53
- Pematangsiantar68.8 km
Indonesia
- Tree cover
- 24%
- Air quality
- 35
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Frequently asked
Questions about Perbaungan
What is the air quality (AQI) in Perbaungan right now?
The latest reading for Perbaungan shows an AQI of 128 (Unhealthy for sensitive groups), measured Nov 11, 21:00 local time by the Medan, Indonesia ground monitoring station, 12 km away, via OpenAQ. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Perbaungan today?
At AQI 128 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Perbaungan been like this week?
Over the last 7 days, the CAMS air-quality model put Perbaungan's daily AQI at 97 on average, from 78 on Nov 11 to an hourly peak of 179 on Nov 6. On 4 of those days the average was above 100, unhealthy for sensitive groups.
Is Perbaungan'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 Perbaungan lost since 2001?
Since 2001, the area within 10 km of Perbaungan has lost about 5,170 hectares of forest (about 7,200 football pitches): 55% 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 has stayed about the same: about 355 hectares a year in 2021–2025, against 323 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Perbaungan shrank from about 12,700 hectares to 11,700 hectares, a net loss of about 988 hectares (−7.8%). New forest grew on about 1,060 hectares, but 2,050 hectares were lost.
What is the tree count in Perbaungan?
Perbaungan has an estimated 170,903 trees across the 12.57 km² measured — 54.4% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Perbaungan need?
Perbaungan has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Perbaungan's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Kecamatan Perbaungan, 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 Kecamatan Perbaungan; the tree count is an estimate derived from that cover.
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