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City report · Rio de Janeiro, Brazil

Araruama Air quality today

Air quality in Araruama currently reads AQI 17 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 17

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
3.0
tree cover
30.8%
trees in this area
77.3K
more trees needed
0

Measured across a 2 km radius around Alto da Boa Vista, Araruama - RJ, 28970-000, Brazil (12.57 km²), from a satellite image of Oct 9, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Araruama · AQI 17 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Oct 9, 2026

Araruama's tree count comes to 77,312 trees across 10.04 km² of land, already at or above the 30% tree-cover level considered healthy for this area.

Air quality detail

Air quality in Araruama today: AQI 17, Good

Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 85 km, US EPA index. Values in µg/m³.

Estimate · model corrected with 2 station cities within 85 km, e.g. São Gonçalo and Niterói

Health signal

Air quality is satisfactory for everyone.

PM2.5

3.0

PM10

18.5

NO₂

0.7

O₃

66.0

SO₂

0.5

CO

103.0

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 Araruama's daily AQI at 50 on average, from 42 on Nov 7 to an hourly peak of 74 on Nov 5.

Last 7 daysavg 50 · peak 74
Nov 5: AQI 61 (peak 74)Nov 6: AQI 58 (peak 70)Nov 7: AQI 42 (peak 52)Nov 8: AQI 42 (peak 54)Nov 9: AQI 48 (peak 55)Nov 10: AQI 50 (peak 53)Nov 11: AQI 49 (peak 56)
Nov 5Nov 11

Where Araruama stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Araruama: Healthy tree cover

30.8% tree cover against a 30% healthy-neighborhood target, across 10.04 km² of land.

Target reached

Trees in this area

77,312

Target trees

77,312

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has Araruama lost?

Since 2001, the area within 10 km of Araruama has lost about 662 hectares of forest (about 930 football pitches): 14% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.

Satellite image of the area around Araruama, June 2017

2017: satellite photo from June 2017 of a 5 × 5 km area about 7 km west of the city center.

Forest lost since 2001
662 haabout 930 football pitches
Share of its forest
14%of what there was in 2000
Cleared for good
609 hadeforestation: turned into farms, mines or towns

The worst year was 2017, when about 92 hectares of forest were lost.

Forest lost each year around Araruama, 2001–2025

Hectares of forest lost each year

Forest lost each year around Araruama, 2001–2025. Use the left and right arrow keys to read each year.91.7

Show the figures as a table
Forest lost each year around Araruama, 2001–2025
YearCleared for goodCan grow backTotal
200123 haunder 1 ha24 ha
200213 haunder 1 ha14 ha
20033 haunder 1 ha3 ha
200410 ha1 ha12 ha
200512 haunder 1 ha12 ha
200616 haunder 1 ha16 ha
200745 haunder 1 ha46 ha
20088 haunder 1 ha8 ha
20096 haunder 1 ha6 ha
201012 haunder 1 ha12 ha
201126 haunder 1 ha26 ha
20129 ha2 ha11 ha
201320 haunder 1 ha20 ha
201454 ha2 ha56 ha
201533 ha5 ha38 ha
20168 ha4 ha12 ha
201775 ha17 ha92 ha
201823 ha3 ha26 ha
201930 ha2 ha32 ha
202018 haunder 1 ha18 ha
202120 ha2 ha22 ha
202227 ha2 ha29 ha
202323 ha4 ha27 ha
202414 ha1 ha16 ha
202580 ha5 ha85 ha

What is causing deforestation around Araruama?

  • Farms, pasture and plantationscleared for good67% · 445 ha
  • Towns and roadscleared for good25% · 164 ha
  • Loggingcan grow back3.9% · 26 ha

Also: wildfires, 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
2,790 ha
Forest in 2020
2,770 ha
Overall change
−26 haless forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Araruama stayed about the same size, at about 2,770 hectares: new forest grew on about 328 hectares, and about 354 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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Araruama air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Araruama

What is the air quality (AQI) in Araruama right now?

The latest reading for Araruama shows an AQI of 17 (Good), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 85 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Araruama today?

At AQI 17 (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 Araruama been like this week?

Over the last 7 days, the CAMS air-quality model put Araruama's daily AQI at 50 on average, from 42 on Nov 7 to an hourly peak of 74 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 Araruama lost since 2001?

Since 2001, the area within 10 km of Araruama has lost about 662 hectares of forest (about 930 football pitches): 14% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Araruama stayed about the same size, at about 2,770 hectares: new forest grew on about 328 hectares, and about 354 hectares were lost.

What is the tree count in Araruama?

Araruama has an estimated 77,312 trees across the 10.04 km² of land measured — 30.8% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does Araruama need?

Araruama has already reached its tree-cover target, so no additional trees are needed to close the gap.

How are Araruama'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 Alto da Boa Vista; the tree count is an estimate derived from that cover.

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