City report · Minas Gerais, Brazil
Juiz de Fora Air quality today
Air quality in Juiz de Fora currently reads AQI 18 (Good): Air quality is satisfactory for everyone.
AQI 18
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 3.3
- tree cover
- 26.4%
- trees in this area
- 82.9K
- more trees needed
- 11.3K
Measured across a 2 km radius around Centro, Juiz de Fora - MG, Brazil (12.57 km²), from a satellite image of Oct 24, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Juiz de Fora · AQI 18 (Good)
Juiz de Fora's tree count comes to 82,938 trees across 12.57 km², 4 points below the 30% tree-cover level considered healthy for this area, so roughly 11,310 more trees would close the gap.
Air quality detail
Air quality in Juiz de Fora today: AQI 18, Good
Main pollutant: PM2.5 · Observed Nov 10, 16:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 125 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 4 station cities within 125 km, e.g. Queimados and Nova Iguaçu
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.3
PM10
18.9
NO₂
2.7
O₃
52.0
SO₂
2.1
CO
106.0
- 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 Juiz de Fora's daily AQI at 44 on average, from 25 on Nov 9 to an hourly peak of 77 on Nov 6.
Where Juiz de Fora stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Juiz de Fora: Below target
26.4% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
82,938
Target trees
94,248
More trees needed
11,310
CO₂ if planted / yr
248.8 t
Deforestation · 2001–2025
How much forest has Juiz de Fora lost?
Since 2001, the area within 10 km of Juiz de Fora has lost about 903 hectares of forest (about 1,300 football pitches): 7.6% of the forest it had in 2000. Most of it (74%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from June 2017 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 903 haabout 1,300 football pitches
- Share of its forest
- 7.6%of what there was in 2000
- Cleared for good
- 670 hadeforestation: turned into farms, mines or towns
The worst year was 2001, when about 191 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 | 148 ha | 43 ha | 191 ha |
| 2002 | 47 ha | 18 ha | 65 ha |
| 2003 | 15 ha | 13 ha | 28 ha |
| 2004 | 12 ha | 10 ha | 22 ha |
| 2005 | 15 ha | 6 ha | 21 ha |
| 2006 | 37 ha | 15 ha | 52 ha |
| 2007 | 73 ha | 16 ha | 89 ha |
| 2008 | 25 ha | 11 ha | 35 ha |
| 2009 | 13 ha | 6 ha | 19 ha |
| 2010 | 26 ha | 9 ha | 35 ha |
| 2011 | 30 ha | 8 ha | 38 ha |
| 2012 | 11 ha | 8 ha | 19 ha |
| 2013 | 12 ha | 8 ha | 20 ha |
| 2014 | 28 ha | 12 ha | 40 ha |
| 2015 | 9 ha | 4 ha | 13 ha |
| 2016 | 8 ha | 14 ha | 22 ha |
| 2017 | 48 ha | 5 ha | 54 ha |
| 2018 | 11 ha | 5 ha | 15 ha |
| 2019 | 12 ha | 2 ha | 14 ha |
| 2020 | 12 ha | 3 ha | 16 ha |
| 2021 | 15 ha | 2 ha | 17 ha |
| 2022 | 9 ha | under 1 ha | 9 ha |
| 2023 | 14 ha | 3 ha | 17 ha |
| 2024 | 18 ha | 6 ha | 24 ha |
| 2025 | 23 ha | 6 ha | 28 ha |
What is causing deforestation around Juiz de Fora?
- Farms, pasture and plantationscleared for good43% · 389 ha
- Towns and roadscleared for good27% · 242 ha
- Loggingcan grow back24% · 216 ha
Also: mining and energy, wildfires, 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
- 12,500 ha
- Forest in 2020
- 12,700 ha
- Overall change
- +211 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Juiz de Fora stayed about the same size, at about 12,700 hectares: new forest grew on about 397 hectares, and about 187 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 Juiz de Fora
Same 2 km radius, same index — so they compare directly.
- Barbacena74.2 km
Brazil
- Tree cover
- 29%
- Air quality
- 6
- Teresópolis82.1 km
Brazil
- Tree cover
- 59%
- Air quality
- 7
- Ubá83.1 km
Brazil
- Tree cover
- 20%
- Air quality
- 10
- Petrópolis84.3 km
Brazil
- Tree cover
- 74%
- Air quality
- 14
- Barra do Piraí92.5 km
Brazil
- Tree cover
- 41%
- Air quality
- 14
- Nova Friburgo102.2 km
Brazil
- Tree cover
- 63%
- Air quality
- 9
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Frequently asked
Questions about Juiz de Fora
What is the air quality (AQI) in Juiz de Fora right now?
The latest reading for Juiz de Fora shows an AQI of 18 (Good), observed Nov 10, 16:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 125 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Juiz de Fora today?
At AQI 18 (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 Juiz de Fora been like this week?
Over the last 7 days, the CAMS air-quality model put Juiz de Fora's daily AQI at 44 on average, from 25 on Nov 9 to an hourly peak of 77 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Juiz de Fora lost since 2001?
Since 2001, the area within 10 km of Juiz de Fora has lost about 903 hectares of forest (about 1,300 football pitches): 7.6% of the forest it had in 2000. Most of it (74%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Juiz de Fora stayed about the same size, at about 12,700 hectares: new forest grew on about 397 hectares, and about 187 hectares were lost.
What is the tree count in Juiz de Fora?
Juiz de Fora has an estimated 82,938 trees across the 12.57 km² measured — 26.4% tree cover, 4 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Juiz de Fora need?
Juiz de Fora needs roughly 11,310 more trees to close a 4-point shortfall against its 30% tree-cover target — about 248.8 t of extra CO₂ absorbed per year once grown.
How are Juiz de Fora'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 Centro; the tree count is an estimate derived from that cover.
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