City report · Antioquia, Colombia
Bello Air quality today
Air quality in Bello currently reads AQI 60 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 60
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 14.0
- tree cover
- 20.3%
- trees in this area
- 63.8K
- more trees needed
- 30.5K
Measured across a 2 km radius around Las Granias, Bello, Antioquia, Colombia (12.57 km²), from a satellite image of Sep 17, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Bello · AQI 60 (Moderate)
Bello's tree count comes to 63,774 trees across 12.57 km², 10 points below the 30% tree-cover level considered healthy for this area, so roughly 30,473 more trees would close the gap.
Air quality detail
Air quality in Bello today: AQI 60, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 10:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Aranjuez, Medellín, Colombia, 5.2 km away · median of 3 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
14.0
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Área Metropolitana del Valle de Aburrá
- 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 Bello's daily AQI at 42 on average, from 29 on Nov 7 to an hourly peak of 73 on Nov 4.
Where Bello stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Bello: Below target
20.3% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
63,774
Target trees
94,247
More trees needed
30,473
CO₂ if planted / yr
670.4 t
Deforestation · 2001–2025
How much forest has Bello lost?
Since 2001, the area within 10 km of Bello has lost about 1,420 hectares of forest (about 2,000 football pitches): 7.7% of the forest it had in 2000. Most of it (82%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from September 2017 of a 5 × 5 km area about 7 km northwest of the city center.
- Forest lost since 2001
- 1,420 haabout 2,000 football pitches
- Share of its forest
- 7.7%of what there was in 2000
- Cleared for good
- 1,170 hadeforestation: turned into farms, mines or towns
The worst year was 2009, when about 145 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 | 113 ha | 3 ha | 116 ha |
| 2002 | 50 ha | 2 ha | 53 ha |
| 2003 | 22 ha | under 1 ha | 23 ha |
| 2004 | 61 ha | 32 ha | 93 ha |
| 2005 | 97 ha | 11 ha | 108 ha |
| 2006 | 126 ha | 16 ha | 142 ha |
| 2007 | 106 ha | 17 ha | 123 ha |
| 2008 | 76 ha | 17 ha | 92 ha |
| 2009 | 115 ha | 30 ha | 145 ha |
| 2010 | 52 ha | 10 ha | 62 ha |
| 2011 | 64 ha | 16 ha | 80 ha |
| 2012 | 55 ha | 14 ha | 69 ha |
| 2013 | 32 ha | 8 ha | 40 ha |
| 2014 | 29 ha | 6 ha | 36 ha |
| 2015 | 8 ha | 1 ha | 9 ha |
| 2016 | 25 ha | 18 ha | 43 ha |
| 2017 | 26 ha | 8 ha | 34 ha |
| 2018 | 13 ha | 3 ha | 16 ha |
| 2019 | 12 ha | 10 ha | 22 ha |
| 2020 | 14 ha | 3 ha | 17 ha |
| 2021 | 3 ha | 1 ha | 5 ha |
| 2022 | 6 ha | 1 ha | 7 ha |
| 2023 | 32 ha | 13 ha | 44 ha |
| 2024 | 21 ha | 5 ha | 26 ha |
| 2025 | 11 ha | 2 ha | 13 ha |
What is causing deforestation around Bello?
- Farms, pasture and plantationscleared for good54% · 765 ha
- Towns and roadscleared for good28% · 394 ha
- Loggingcan grow back17% · 239 ha
Also: mining and energy, 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
- 18,600 ha
- Forest in 2020
- 18,100 ha
- Overall change
- −498 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Bello shrank from about 18,600 hectares to 18,100 hectares, a net loss of about 498 hectares (−2.7%). New forest grew on about 133 hectares, but 632 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
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Frequently asked
Questions about Bello
What is the air quality (AQI) in Bello right now?
The latest reading for Bello shows an AQI of 60 (Moderate), measured Nov 11, 10:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Aranjuez, Medellín, Colombia, 5.2 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Bello today?
At AQI 60 (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 Bello been like this week?
Over the last 7 days, the CAMS air-quality model put Bello's daily AQI at 42 on average, from 29 on Nov 7 to an hourly peak of 73 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Bello lost since 2001?
Since 2001, the area within 10 km of Bello has lost about 1,420 hectares of forest (about 2,000 football pitches): 7.7% of the forest it had in 2000. Most of it (82%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Bello shrank from about 18,600 hectares to 18,100 hectares, a net loss of about 498 hectares (−2.7%). New forest grew on about 133 hectares, but 632 hectares were lost.
What is the tree count in Bello?
Bello has an estimated 63,774 trees across the 12.57 km² measured — 20.3% tree cover, 10 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Bello need?
Bello needs roughly 30,473 more trees to close a 10-point shortfall against its 30% tree-cover target — about 670.4 t of extra CO₂ absorbed per year once grown.
How are Bello's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Las Granias, 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 Las Granias; the tree count is an estimate derived from that cover.
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