City report · Maranhão, Brazil
Codó Air quality today
Air quality in Codó currently reads AQI 75 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 75
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 25.0
- tree cover
- 17.5%
- trees in this area
- 55.0K
- more trees needed
- 39.3K
Measured across a 2 km radius around Codó, Maranhão, 65400-000, Brazil (12.57 km²), from a satellite image of Sep 20, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Codó · AQI 75 (Moderate)
Codó's tree count comes to 54,978 trees across 12.57 km², 13 points below the 30% tree-cover level considered healthy for this area, so roughly 39,270 more trees would close the gap.
Air quality detail
Air quality in Codó today: AQI 75, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 18:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
25.0
PM10
26.9
NO₂
6.2
O₃
77.0
SO₂
1.4
CO
464.0
- 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 Codó's daily AQI at 56 on average, from 43 on Nov 4 to an hourly peak of 108 on Nov 8.
Where Codó stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Codó: Critically low
17.5% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
54,978
Target trees
94,248
More trees needed
39,270
CO₂ if planted / yr
863.9 t
Deforestation · 2001–2025
How much forest has Codó lost?
Since 2001, the area within 10 km of Codó has lost about 10,100 hectares of forest (about 14,000 football pitches): 42% of the forest it had in 2000. Most of it (95%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from July 2017 of a 5 × 5 km area about 6 km northeast of the city center.
- Forest lost since 2001
- 10,100 haabout 14,000 football pitches
- Share of its forest
- 42%of what there was in 2000
- Cleared for good
- 9,570 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 623 hectares a year in 2021–2025, against 671 hectares a year in 2016–2020. The worst year was 2016, when about 996 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 | 110 ha | 2 ha | 112 ha |
| 2002 | 390 ha | 6 ha | 396 ha |
| 2003 | 13 ha | under 1 ha | 13 ha |
| 2004 | 238 ha | 23 ha | 261 ha |
| 2005 | 70 ha | 9 ha | 78 ha |
| 2006 | 175 ha | 6 ha | 181 ha |
| 2007 | 172 ha | 7 ha | 179 ha |
| 2008 | 275 ha | 10 ha | 285 ha |
| 2009 | 215 ha | 12 ha | 227 ha |
| 2010 | 156 ha | 2 ha | 158 ha |
| 2011 | 114 ha | 1 ha | 115 ha |
| 2012 | 344 ha | 6 ha | 350 ha |
| 2013 | 372 ha | 28 ha | 400 ha |
| 2014 | 454 ha | 19 ha | 473 ha |
| 2015 | 380 ha | 24 ha | 404 ha |
| 2016 | 902 ha | 94 ha | 996 ha |
| 2017 | 724 ha | 37 ha | 761 ha |
| 2018 | 767 ha | 71 ha | 838 ha |
| 2019 | 369 ha | 25 ha | 394 ha |
| 2020 | 354 ha | 14 ha | 368 ha |
| 2021 | 371 ha | 30 ha | 401 ha |
| 2022 | 496 ha | 20 ha | 516 ha |
| 2023 | 863 ha | 30 ha | 893 ha |
| 2024 | 920 ha | 41 ha | 961 ha |
| 2025 | 329 ha | 16 ha | 345 ha |
What is causing deforestation around Codó?
- Farms, pasture and plantationscleared for good90% · 9,110 ha
- Towns and roadscleared for good4.2% · 424 ha
- Wildfirescan grow back3.7% · 377 ha
Also: shifting farming, mining and energy, storms, floods and other natural causes, logging, 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
- 16,700 ha
- Forest in 2020
- 13,100 ha
- Overall change
- −3,550 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Codó shrank from about 16,700 hectares to 13,100 hectares, a net loss of about 3,550 hectares (−21%). New forest grew on about 610 hectares, but 4,160 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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Frequently asked
Questions about Codó
What is the air quality (AQI) in Codó right now?
The latest reading for Codó shows an AQI of 75 (Moderate), observed Nov 10, 18:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Codó today?
At AQI 75 (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 Codó been like this week?
Over the last 7 days, the CAMS air-quality model put Codó's daily AQI at 56 on average, from 43 on Nov 4 to an hourly peak of 108 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Codó lost since 2001?
Since 2001, the area within 10 km of Codó has lost about 10,100 hectares of forest (about 14,000 football pitches): 42% of the forest it had in 2000. Most of it (95%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss has stayed about the same: about 623 hectares a year in 2021–2025, against 671 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Codó shrank from about 16,700 hectares to 13,100 hectares, a net loss of about 3,550 hectares (−21%). New forest grew on about 610 hectares, but 4,160 hectares were lost.
What is the tree count in Codó?
Codó has an estimated 54,978 trees across the 12.57 km² measured — 17.5% tree cover, 13 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Codó need?
Codó needs roughly 39,270 more trees to close a 13-point shortfall against its 30% tree-cover target — about 863.9 t of extra CO₂ absorbed per year once grown.
How are Codó'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 Codó; the tree count is an estimate derived from that cover.
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