City report · Rio de Janeiro, Brazil
Macaé Air quality today
Air quality in Macaé currently reads AQI 16 (Good): Air quality is satisfactory for everyone.
AQI 16
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 3.3
- tree cover
- 21.4%
- trees in this area
- 51.7K
- more trees needed
- 20.8K
Measured across a 2 km radius around Visconde de Araújo, Macaé - RJ, 27970-020, Brazil (12.57 km²), from a satellite image of Oct 11, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Macaé · AQI 16 (Good)
Macaé's tree count comes to 51,700 trees across 9.67 km² of land, 9 points below the 30% tree-cover level considered healthy for this area, so roughly 20,777 more trees would close the gap.
Air quality detail
Air quality in Macaé today: AQI 16, Good
Main pollutant: PM2.5 · Observed Nov 11, 02:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 165 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 4 station cities within 165 km, e.g. São Gonçalo and Niterói
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.3
PM10
20.9
NO₂
1.7
O₃
53.0
SO₂
0.5
CO
132.0
- 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 Macaé's daily AQI at 58 on average, from 53 on Nov 11 to an hourly peak of 82 on Nov 5.
Where Macaé stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Macaé: Below target
21.4% tree cover against a 30% healthy-neighborhood target, across 9.67 km² of land.
Trees in this area
51,700
Target trees
72,477
More trees needed
20,777
CO₂ if planted / yr
457.1 t
Deforestation · 2001–2025
How much forest has Macaé lost?
Since 2001, the area within 10 km of Macaé has lost about 200 hectares of forest (about 280 football pitches): 9.3% of the forest it had in 2000. Most of it (98%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 200 haabout 280 football pitches
- Share of its forest
- 9.3%of what there was in 2000
- Cleared for good
- 197 hadeforestation: turned into farms, mines or towns
The worst year was 2002, when about 21 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 | 13 ha | under 1 ha | 13 ha |
| 2002 | 21 ha | under 1 ha | 21 ha |
| 2003 | 11 ha | under 1 ha | 11 ha |
| 2004 | 5 ha | under 1 ha | 5 ha |
| 2005 | 2 ha | under 1 ha | 2 ha |
| 2006 | 7 ha | under 1 ha | 7 ha |
| 2007 | 8 ha | under 1 ha | 8 ha |
| 2008 | 8 ha | under 1 ha | 8 ha |
| 2009 | 5 ha | under 1 ha | 5 ha |
| 2010 | 14 ha | under 1 ha | 14 ha |
| 2011 | 11 ha | under 1 ha | 11 ha |
| 2012 | 9 ha | under 1 ha | 10 ha |
| 2013 | 4 ha | under 1 ha | 4 ha |
| 2014 | 16 ha | under 1 ha | 16 ha |
| 2015 | 4 ha | under 1 ha | 4 ha |
| 2016 | 13 ha | under 1 ha | 13 ha |
| 2017 | 16 ha | under 1 ha | 17 ha |
| 2018 | 7 ha | under 1 ha | 7 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | 3 ha | under 1 ha | 3 ha |
| 2021 | 4 ha | under 1 ha | 4 ha |
| 2022 | 5 ha | under 1 ha | 5 ha |
| 2023 | 4 ha | under 1 ha | 4 ha |
| 2024 | 4 ha | under 1 ha | 4 ha |
| 2025 | 3 ha | under 1 ha | 3 ha |
What is causing deforestation around Macaé?
- Towns and roadscleared for good68% · 135 ha
- Farms, pasture and plantationscleared for good24% · 48 ha
- Mining and energycleared for good6.9% · 14 ha
Also: storms, floods and other natural causes, 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
- 1,380 ha
- Forest in 2020
- 1,400 ha
- Overall change
- +21 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Macaé stayed about the same size, at about 1,400 hectares: new forest grew on about 112 hectares, and about 90 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 Macaé
Same 2 km radius, same index — so they compare directly.
- Rio das Ostras22.9 km
Brazil
- Tree cover
- 28%
- Air quality
- 20
- São Pedro da Aldeia60.2 km
Brazil
- Tree cover
- 28%
- Air quality
- 14
- Cabo Frio61.2 km
Brazil
- Tree cover
- 14%
- Air quality
- 14
- Nova Friburgo77.8 km
Brazil
- Tree cover
- 63%
- Air quality
- 9
- Araruama79.0 km
Brazil
- Tree cover
- 31%
- Air quality
- 17
- Campos dos Goytacazes84.4 km
Brazil
- Tree cover
- 17%
- Air quality
- 40
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Frequently asked
Questions about Macaé
What is the air quality (AQI) in Macaé right now?
The latest reading for Macaé shows an AQI of 16 (Good), observed Nov 11, 02:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 165 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Macaé today?
At AQI 16 (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 Macaé been like this week?
Over the last 7 days, the CAMS air-quality model put Macaé's daily AQI at 58 on average, from 53 on Nov 11 to an hourly peak of 82 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Macaé lost since 2001?
Since 2001, the area within 10 km of Macaé has lost about 200 hectares of forest (about 280 football pitches): 9.3% of the forest it had in 2000. Most of it (98%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Macaé stayed about the same size, at about 1,400 hectares: new forest grew on about 112 hectares, and about 90 hectares were lost.
What is the tree count in Macaé?
Macaé has an estimated 51,700 trees across the 9.67 km² of land measured — 21.4% tree cover, 9 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Macaé need?
Macaé needs roughly 20,777 more trees to close a 9-point shortfall against its 30% tree-cover target — about 457.1 t of extra CO₂ absorbed per year once grown.
How are Macaé'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 Visconde de Araújo; the tree count is an estimate derived from that cover.
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