City report · Rio de Janeiro, Brazil
Nova Iguaçu Air quality today
Air quality in Nova Iguaçu currently reads AQI 77 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 77
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 2.8
- tree cover
- 32.6%
- trees in this area
- 102K
- more trees needed
- 0
Measured across a 2 km radius around Centro, Nova Iguaçu - RJ, Brazil (12.57 km²), from a satellite image of Oct 24, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nova Iguaçu · AQI 77 (Moderate)
Nova Iguaçu's tree count comes to 102,416 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Nova Iguaçu today: AQI 77, Moderate
Main pollutant: Ozone · Observed Nov 11, 15:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Pavuna, 11.2 km away · median of 14 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
2.8
PM10
7.8
NO₂
64.6
O₃
123.7
SO₂
—
CO
343.7
Data: OpenAQ · Rio City Hall, Prefeitura da Cidade do Rio de Janeiro · MonitorAr-Rio
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Nova Iguaçu's daily AQI at 73 on average, from 54 on Nov 8 to an hourly peak of 158 on Nov 4.
Where Nova Iguaçu stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nova Iguaçu: Healthy tree cover
32.6% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
102,416
Target trees
102,416
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Nova Iguaçu lost?
Since 2001, the area within 10 km of Nova Iguaçu has lost about 444 hectares of forest (about 620 football pitches): 4.5% of the forest it had in 2000. Most of it (89%) 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 northeast of the city center.
- Forest lost since 2001
- 444 haabout 620 football pitches
- Share of its forest
- 4.5%of what there was in 2000
- Cleared for good
- 396 hadeforestation: turned into farms, mines or towns
The worst year was 2017, when about 87 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 | 8 ha | under 1 ha | 9 ha |
| 2002 | 4 ha | under 1 ha | 4 ha |
| 2003 | 3 ha | under 1 ha | 3 ha |
| 2004 | 5 ha | under 1 ha | 6 ha |
| 2005 | 11 ha | under 1 ha | 12 ha |
| 2006 | 10 ha | under 1 ha | 10 ha |
| 2007 | 26 ha | 3 ha | 29 ha |
| 2008 | 4 ha | under 1 ha | 4 ha |
| 2009 | 14 ha | under 1 ha | 15 ha |
| 2010 | 17 ha | 1 ha | 18 ha |
| 2011 | 15 ha | under 1 ha | 16 ha |
| 2012 | 5 ha | under 1 ha | 5 ha |
| 2013 | 15 ha | 1 ha | 16 ha |
| 2014 | 43 ha | 1 ha | 44 ha |
| 2015 | 6 ha | under 1 ha | 6 ha |
| 2016 | 5 ha | under 1 ha | 6 ha |
| 2017 | 68 ha | 19 ha | 87 ha |
| 2018 | 63 ha | under 1 ha | 63 ha |
| 2019 | 13 ha | 2 ha | 14 ha |
| 2020 | 9 ha | 1 ha | 10 ha |
| 2021 | 11 ha | under 1 ha | 11 ha |
| 2022 | 6 ha | under 1 ha | 6 ha |
| 2023 | 3 ha | under 1 ha | 3 ha |
| 2024 | 23 ha | 13 ha | 36 ha |
| 2025 | 9 ha | 2 ha | 11 ha |
What is causing deforestation around Nova Iguaçu?
- Farms, pasture and plantationscleared for good41% · 180 ha
- Towns and roadscleared for good39% · 173 ha
- Mining and energycleared for good9.5% · 42 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
- 8,640 ha
- Forest in 2020
- 8,730 ha
- Overall change
- +91 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Nova Iguaçu stayed about the same size, at about 8,730 hectares: new forest grew on about 276 hectares, and about 186 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 Nova Iguaçu
Same 2 km radius, same index — so they compare directly.
- Duque de Caxias14.6 km
Brazil
- Tree cover
- 17%
- Air quality
- 97
- Japeri24.4 km
Brazil
- Tree cover
- 55%
- Air quality
- 25
- Barra da Tijuca28.0 km
Brazil
- Tree cover
- 41%
- Air quality
- 22
- Rio de Janeiro32.1 km
Brazil
- Tree cover
- 21%
- Air quality
- 23
- Itaguaí34.8 km
Brazil
- Tree cover
- 46%
- Air quality
- 11
- Niterói38.2 km
Brazil
- Tree cover
- 33%
- Air quality
- 23
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Frequently asked
Questions about Nova Iguaçu
What is the air quality (AQI) in Nova Iguaçu right now?
The latest reading for Nova Iguaçu shows an AQI of 77 (Moderate), measured Nov 11, 15:00 local time by 14 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Pavuna, 11.2 km away). The main pollutant is Ozone. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Nova Iguaçu today?
At AQI 77 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Nova Iguaçu been like this week?
Over the last 7 days, the CAMS air-quality model put Nova Iguaçu's daily AQI at 73 on average, from 54 on Nov 8 to an hourly peak of 158 on Nov 4. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Nova Iguaçu lost since 2001?
Since 2001, the area within 10 km of Nova Iguaçu has lost about 444 hectares of forest (about 620 football pitches): 4.5% 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 Nova Iguaçu stayed about the same size, at about 8,730 hectares: new forest grew on about 276 hectares, and about 186 hectares were lost.
What is the tree count in Nova Iguaçu?
Nova Iguaçu has an estimated 102,416 trees across the 12.57 km² measured — 32.6% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Nova Iguaçu need?
Nova Iguaçu has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Nova Iguaçu's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Centro, 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 Centro; the tree count is an estimate derived from that cover.
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