City report · Minas Gerais, Brazil
Ubá Air quality today
Air quality in Ubá currently reads AQI 10 (Good): Air quality is satisfactory for everyone.
AQI 10
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 1.9
- tree cover
- 20.0%
- trees in this area
- 62.8K
- more trees needed
- 31.4K
Measured across a 2 km radius around Centro, Ubá - MG, 36500-000, Brazil (12.57 km²), from a satellite image of Sep 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ubá · AQI 10 (Good)
Ubá's tree count comes to 62,832 trees across 12.57 km², 10 points below the 30% tree-cover level considered healthy for this area, so roughly 31,416 more trees would close the gap.
Air quality detail
Air quality in Ubá today: AQI 10, Good
Main pollutant: PM2.5 · Observed Nov 11, 01:00 local time via Open-Meteo / CAMS, corrected with 6 ground-station cities within 205 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 6 station cities within 205 km, e.g. Queimados and Duque de Caxias
Health signal
Air quality is satisfactory for everyone.
PM2.5
1.9
PM10
11.2
NO₂
5.2
O₃
36.0
SO₂
1.0
CO
84.0
- 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 Ubá's daily AQI at 42 on average, from 24 on Nov 9 to an hourly peak of 69 on Nov 6.
Where Ubá stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ubá: Below target
20.0% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
62,832
Target trees
94,248
More trees needed
31,416
CO₂ if planted / yr
691.2 t
Deforestation · 2001–2025
How much forest has Ubá lost?
Since 2001, the area within 10 km of Ubá has lost about 795 hectares of forest (about 1,100 football pitches): 11% of the forest it had in 2000. The biggest cause was farms, pasture and plantations (39%). About 365 hectares (46%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from September 2017 of a 5 × 5 km area about 7 km northeast of the city center.
- Forest lost since 2001
- 795 haabout 1,100 football pitches
- Share of its forest
- 11%of what there was in 2000
- Cleared for good
- 365 hadeforestation: turned into farms, mines or towns
The worst year was 2017, when about 153 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 | 16 ha | 7 ha | 23 ha |
| 2002 | 4 ha | 10 ha | 14 ha |
| 2003 | 7 ha | 10 ha | 17 ha |
| 2004 | 7 ha | 5 ha | 12 ha |
| 2005 | 8 ha | 7 ha | 14 ha |
| 2006 | under 1 ha | under 1 ha | 2 ha |
| 2007 | 68 ha | 41 ha | 109 ha |
| 2008 | 9 ha | 3 ha | 12 ha |
| 2009 | 12 ha | 4 ha | 16 ha |
| 2010 | 15 ha | 17 ha | 32 ha |
| 2011 | 14 ha | 19 ha | 33 ha |
| 2012 | 13 ha | 7 ha | 20 ha |
| 2013 | 4 ha | 5 ha | 8 ha |
| 2014 | 41 ha | 39 ha | 80 ha |
| 2015 | 27 ha | 27 ha | 54 ha |
| 2016 | 7 ha | 9 ha | 15 ha |
| 2017 | 61 ha | 92 ha | 153 ha |
| 2018 | 4 ha | 5 ha | 9 ha |
| 2019 | 6 ha | 7 ha | 13 ha |
| 2020 | 2 ha | 5 ha | 7 ha |
| 2021 | under 1 ha | 10 ha | 11 ha |
| 2022 | 2 ha | 16 ha | 17 ha |
| 2023 | 6 ha | 12 ha | 18 ha |
| 2024 | 14 ha | 30 ha | 44 ha |
| 2025 | 20 ha | 43 ha | 63 ha |
What is causing deforestation around Ubá?
- Farms, pasture and plantationscleared for good39% · 308 ha
- Loggingcan grow back36% · 284 ha
- Wildfirescan grow back17% · 134 ha
Also: towns and roads, 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
- 8,240 ha
- Forest in 2020
- 8,990 ha
- Overall change
- +757 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ubá grew from about 8,240 hectares to 8,990 hectares, a net gain of about 757 hectares (+9.2%). New forest grew on about 1,080 hectares, while 324 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 Ubá
Same 2 km radius, same index — so they compare directly.
- Muriaé59.8 km
Brazil
- Tree cover
- 25%
- Air quality
- 12
- Juiz de Fora83.1 km
Brazil
- Tree cover
- 26%
- Air quality
- 18
- Barbacena86.9 km
Brazil
- Tree cover
- 29%
- Air quality
- 6
- Conselheiro Lafaiete101.4 km
Brazil
- Tree cover
- 23%
- Air quality
- 5
- Itaperuna109.8 km
Brazil
- Tree cover
- 26%
- Air quality
- 19
- Nova Friburgo136.0 km
Brazil
- Tree cover
- 63%
- Air quality
- 9
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Frequently asked
Questions about Ubá
What is the air quality (AQI) in Ubá right now?
The latest reading for Ubá shows an AQI of 10 (Good), observed Nov 11, 01:00 local time via Open-Meteo / CAMS, corrected with 6 ground-station cities within 205 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Ubá today?
At AQI 10 (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 Ubá been like this week?
Over the last 7 days, the CAMS air-quality model put Ubá's daily AQI at 42 on average, from 24 on Nov 9 to an hourly peak of 69 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 Ubá lost since 2001?
Since 2001, the area within 10 km of Ubá has lost about 795 hectares of forest (about 1,100 football pitches): 11% of the forest it had in 2000. The biggest cause was farms, pasture and plantations (39%). About 365 hectares (46%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Ubá grew from about 8,240 hectares to 8,990 hectares, a net gain of about 757 hectares (+9.2%). New forest grew on about 1,080 hectares, while 324 hectares were lost.
What is the tree count in Ubá?
Ubá has an estimated 62,832 trees across the 12.57 km² measured — 20.0% tree cover, 10 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Ubá need?
Ubá needs roughly 31,416 more trees to close a 10-point shortfall against its 30% tree-cover target — about 691.2 t of extra CO₂ absorbed per year once grown.
How are Ubá'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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