City report · North Sumatra, Indonesia
Binjai Air quality today
Air quality in Binjai 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)
- 12.8
- tree cover
- 50.2%
- trees in this area
- 158K
- more trees needed
- 0
Measured across a 2 km radius around Binjai, Binjai City, North Sumatra, Indonesia (12.57 km²), from a satellite image of Sep 9, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Binjai · AQI 63 (Moderate)
Binjai's tree count comes to 157,708 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 Binjai today: AQI 63, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 09:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 45 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 2 station cities within 45 km, e.g. Medan and Kecamatan Beringin
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
12.8
PM10
14.2
NO₂
5.5
O₃
56.0
SO₂
3.8
CO
469.0
- 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 Binjai's daily AQI at 94 on average, from 77 on Nov 11 to an hourly peak of 184 on Nov 6.
This is the US EPA AQI. How it differs from Indonesia's ISPU
Where Binjai stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Binjai: Healthy tree cover
50.2% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
157,708
Target trees
157,708
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Binjai lost?
Since 2001, the area within 10 km of Binjai has lost about 3,000 hectares of forest (about 4,200 football pitches): 23% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2018: satellite photo from April 2018 of a 5 × 5 km area about 7 km west of the city center.
- Forest lost since 2001
- 3,000 haabout 4,200 football pitches
- Share of its forest
- 23%of what there was in 2000
- Cleared for good
- 3,000 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 49 hectares a year in 2021–2025, down from 175 hectares a year in 2016–2020. The worst year was 2009, when about 421 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 | 127 ha | under 1 ha | 127 ha |
| 2002 | 83 ha | under 1 ha | 83 ha |
| 2003 | 104 ha | under 1 ha | 104 ha |
| 2004 | 101 ha | under 1 ha | 101 ha |
| 2005 | 80 ha | under 1 ha | 80 ha |
| 2006 | 75 ha | under 1 ha | 76 ha |
| 2007 | 58 ha | under 1 ha | 58 ha |
| 2008 | 283 ha | under 1 ha | 283 ha |
| 2009 | 421 ha | under 1 ha | 421 ha |
| 2010 | 148 ha | under 1 ha | 148 ha |
| 2011 | 33 ha | under 1 ha | 33 ha |
| 2012 | 210 ha | 1 ha | 211 ha |
| 2013 | 10 ha | under 1 ha | 10 ha |
| 2014 | 133 ha | under 1 ha | 133 ha |
| 2015 | 16 ha | under 1 ha | 16 ha |
| 2016 | 160 ha | under 1 ha | 160 ha |
| 2017 | 77 ha | under 1 ha | 77 ha |
| 2018 | 268 ha | under 1 ha | 268 ha |
| 2019 | 321 ha | under 1 ha | 321 ha |
| 2020 | 48 ha | under 1 ha | 48 ha |
| 2021 | 66 ha | under 1 ha | 66 ha |
| 2022 | 44 ha | under 1 ha | 44 ha |
| 2023 | 30 ha | under 1 ha | 30 ha |
| 2024 | 51 ha | under 1 ha | 51 ha |
| 2025 | 54 ha | under 1 ha | 54 ha |
What is causing deforestation around Binjai?
- Farms, pasture and plantationscleared for good97% · 2,920 ha
- Towns and roadscleared for good2.8% · 84 ha
Also: 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
- 19,100 ha
- Forest in 2020
- 20,100 ha
- Overall change
- +980 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Binjai grew from about 19,100 hectares to 20,100 hectares, a net gain of about 980 hectares (+5.1%). New forest grew on about 2,320 hectares, while 1,340 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 Binjai
Same 2 km radius, same index — so they compare directly.
- Medan20.2 km
Indonesia
- Tree cover
- 16%
- Air quality
- 166
- Belawan29.4 km
Indonesia
- Tree cover
- 38%
- Air quality
- 155
- Percut42.1 km
Indonesia
- Tree cover
- 30%
- Air quality
- 166
- Perbaungan52.3 km
Indonesia
- Tree cover
- 54%
- Air quality
- 166
- Tebingtinggi81.0 km
Indonesia
- Tree cover
- 35%
- Air quality
- 61
- Pematangsiantar96.3 km
Indonesia
- Tree cover
- 24%
- Air quality
- 52
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Frequently asked
Questions about Binjai
What is the air quality (AQI) in Binjai right now?
The latest reading for Binjai shows an AQI of 63 (Moderate), observed Nov 11, 09:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 45 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 Binjai 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 Binjai been like this week?
Over the last 7 days, the CAMS air-quality model put Binjai's daily AQI at 94 on average, from 77 on Nov 11 to an hourly peak of 184 on Nov 6. On 2 of those days the average was above 100, unhealthy for sensitive groups.
Is Binjai'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 Binjai lost since 2001?
Since 2001, the area within 10 km of Binjai has lost about 3,000 hectares of forest (about 4,200 football pitches): 23% 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 slowing down: about 49 hectares a year in 2021–2025, down from 175 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Binjai grew from about 19,100 hectares to 20,100 hectares, a net gain of about 980 hectares (+5.1%). New forest grew on about 2,320 hectares, while 1,340 hectares were lost.
What is the tree count in Binjai?
Binjai has an estimated 157,708 trees across the 12.57 km² measured — 50.2% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Binjai need?
Binjai has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Binjai'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 Binjai; the tree count is an estimate derived from that cover.
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