City report · Cundinamarca, Colombia
Chía Air quality today
Air quality in Chía currently reads AQI 33 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 33
Good
- PM2.5, fine particles (µg/m³)
- 6.0
- tree cover
- 12.7%
- trees in this area
- 39.9K
- more trees needed
- 54.4K
Measured across a 2 km radius around Br. Tranquilandia, Chía, Cundinamarca, Colombia (12.57 km²), from a satellite image of Jun 11, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Chía · AQI 33 (Good)
Chía's tree count comes to 39,898 trees across 12.57 km², 17 points below the 30% tree-cover level considered healthy for this area, so roughly 54,350 more trees would close the gap.
Air quality detail
Air quality in Chía today: AQI 33, Good
Main pollutant: PM2.5 · Observed Nov 11, 09:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Guaymaral, Bogota, Colombia, 8.5 km away
Health signal
Air quality is satisfactory for everyone.
PM2.5
6.0
PM10
32.4
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, OAB - El Observatorio Ambiental de Bogotá
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Chía's daily AQI at 60 on average, from 49 on Nov 8 to an hourly peak of 106 on Nov 4.
Where Chía stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Chía: Critically low
12.7% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
39,898
Target trees
94,248
More trees needed
54,350
CO₂ if planted / yr
1,196 t
Deforestation · 2001–2025
How much forest has Chía lost?
Since 2001, the area within 10 km of Chía has lost about 1,370 hectares of forest (about 1,900 football pitches): 12% of the forest it had in 2000. Most of it (89%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2019: satellite photo from December 2018 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 1,370 haabout 1,900 football pitches
- Share of its forest
- 12%of what there was in 2000
- Cleared for good
- 1,230 hadeforestation: turned into farms, mines or towns
The worst year was 2007, when about 343 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 | 234 ha | 41 ha | 275 ha |
| 2002 | 62 ha | 10 ha | 73 ha |
| 2003 | 12 ha | 3 ha | 15 ha |
| 2004 | 37 ha | under 1 ha | 38 ha |
| 2005 | 44 ha | 4 ha | 48 ha |
| 2006 | 49 ha | under 1 ha | 50 ha |
| 2007 | 334 ha | 9 ha | 343 ha |
| 2008 | 41 ha | 4 ha | 45 ha |
| 2009 | 168 ha | 15 ha | 183 ha |
| 2010 | 63 ha | 10 ha | 73 ha |
| 2011 | 22 ha | 3 ha | 26 ha |
| 2012 | 68 ha | 11 ha | 79 ha |
| 2013 | 17 ha | 2 ha | 19 ha |
| 2014 | 10 ha | 10 ha | 20 ha |
| 2015 | 3 ha | under 1 ha | 3 ha |
| 2016 | 6 ha | 3 ha | 9 ha |
| 2017 | 14 ha | under 1 ha | 14 ha |
| 2018 | 4 ha | 5 ha | 9 ha |
| 2019 | 8 ha | under 1 ha | 8 ha |
| 2020 | 9 ha | 4 ha | 13 ha |
| 2021 | 4 ha | under 1 ha | 4 ha |
| 2022 | 4 ha | under 1 ha | 4 ha |
| 2023 | 3 ha | under 1 ha | 3 ha |
| 2024 | 8 ha | 6 ha | 14 ha |
| 2025 | 5 ha | 2 ha | 7 ha |
What is causing deforestation around Chía?
- Farms, pasture and plantationscleared for good77% · 1,060 ha
- Towns and roadscleared for good12% · 164 ha
- Loggingcan grow back10% · 141 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
- 10,300 ha
- Forest in 2020
- 10,100 ha
- Overall change
- −254 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Chía shrank from about 10,300 hectares to 10,100 hectares, a net loss of about 254 hectares (−2.5%). New forest grew on about 290 hectares, but 544 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 Chía
Same 2 km radius, same index — so they compare directly.
- Zipaquirá19.1 km
Colombia
- Tree cover
- 30%
- Air quality
- 64
- Madrid26.8 km
Colombia
- Tree cover
- 14%
- Air quality
- 52
- Bogotá27.8 km
Colombia
- Tree cover
- 4%
- Air quality
- 46
- Facatativá33.2 km
Colombia
- Tree cover
- 15%
- Air quality
- 69
- Soacha35.7 km
Colombia
- Tree cover
- 3%
- Air quality
- 53
- Villavicencio94.0 km
Colombia
- Tree cover
- 25%
- Air quality
- 47
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Frequently asked
Questions about Chía
What is the air quality (AQI) in Chía right now?
The latest reading for Chía shows an AQI of 33 (Good), measured Nov 11, 09:00 local time by the Guaymaral, Bogota, Colombia ground monitoring station, 8.5 km away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Chía today?
At AQI 33 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Chía been like this week?
Over the last 7 days, the CAMS air-quality model put Chía's daily AQI at 60 on average, from 49 on Nov 8 to an hourly peak of 106 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 Chía lost since 2001?
Since 2001, the area within 10 km of Chía has lost about 1,370 hectares of forest (about 1,900 football pitches): 12% of the forest it had in 2000. Most of it (89%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Chía shrank from about 10,300 hectares to 10,100 hectares, a net loss of about 254 hectares (−2.5%). New forest grew on about 290 hectares, but 544 hectares were lost.
What is the tree count in Chía?
Chía has an estimated 39,898 trees across the 12.57 km² measured — 12.7% tree cover, 17 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Chía need?
Chía needs roughly 54,350 more trees to close a 17-point shortfall against its 30% tree-cover target — about 1,196 t of extra CO₂ absorbed per year once grown.
How are Chía's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Br. Tranquilandia, 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 Br. Tranquilandia; the tree count is an estimate derived from that cover.
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