City report · Tamaulipas, Mexico
Heroica Matamoros Air quality today
Air quality in Heroica Matamoros currently reads AQI 58 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 58
Moderate
- PM2.5, fine particles (µg/m³)
- 12.8
- tree cover
- 19.5%
- trees in this area
- 60.9K
- more trees needed
- 32.8K
Measured across a 2 km radius around Zona Centro, 87300 Heroica Matamoros, Tamps., Mexico (12.57 km²), from a satellite image of Aug 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Heroica Matamoros · AQI 58 (Moderate)
Heroica Matamoros's tree count comes to 60,893 trees across 12.49 km² of land, 10 points below the 30% tree-cover level considered healthy for this area, so roughly 32,789 more trees would close the gap.
Air quality detail
Air quality in Heroica Matamoros today: AQI 58, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 09:56 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Brownsville Sensor #6, 2.5 km away · median of 3 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
12.8
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · Clarity
- 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 Heroica Matamoros's daily AQI at 33 on average, from 19 on Nov 10 to an hourly peak of 58 on Nov 4.
Where Heroica Matamoros stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Heroica Matamoros: Below target
19.5% tree cover against a 30% healthy-neighborhood target, across 12.49 km² of land.
Trees in this area
60,893
Target trees
93,682
More trees needed
32,789
CO₂ if planted / yr
721.4 t
Deforestation · 2001–2025
How much forest has Heroica Matamoros lost?
Since 2001, the area within 10 km of Heroica Matamoros has lost about 143 hectares of forest (about 200 football pitches): 15% of the forest it had in 2000. Most of it (93%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from September 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 143 haabout 200 football pitches
- Share of its forest
- 15%of what there was in 2000
- Cleared for good
- 133 hadeforestation: turned into farms, mines or towns
The worst year was 2003, 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 | 5 ha | under 1 ha | 5 ha |
| 2002 | 7 ha | under 1 ha | 8 ha |
| 2003 | 20 ha | under 1 ha | 21 ha |
| 2004 | 2 ha | under 1 ha | 3 ha |
| 2005 | 5 ha | under 1 ha | 6 ha |
| 2006 | 7 ha | 1 ha | 8 ha |
| 2007 | 6 ha | 1 ha | 8 ha |
| 2008 | 2 ha | under 1 ha | 3 ha |
| 2009 | 7 ha | under 1 ha | 7 ha |
| 2010 | 3 ha | under 1 ha | 3 ha |
| 2011 | 10 ha | 2 ha | 12 ha |
| 2012 | 3 ha | 1 ha | 4 ha |
| 2013 | 2 ha | under 1 ha | 2 ha |
| 2014 | 5 ha | under 1 ha | 6 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 17 ha | under 1 ha | 17 ha |
| 2017 | 5 ha | under 1 ha | 5 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | 10 ha | under 1 ha | 10 ha |
| 2021 | 4 ha | under 1 ha | 4 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | 6 ha | under 1 ha | 6 ha |
| 2024 | 5 ha | under 1 ha | 5 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Heroica Matamoros?
- Towns and roadscleared for good54% · 78 ha
- Farms, pasture and plantationscleared for good38% · 55 ha
- Unknown causescause unknown7% · 10 ha
Also: storms, floods and other natural 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
- 1,310 ha
- Forest in 2020
- 1,450 ha
- Overall change
- +139 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Heroica Matamoros grew from about 1,310 hectares to 1,450 hectares, a net gain of about 139 hectares (+11%). New forest grew on about 247 hectares, while 108 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 Heroica Matamoros
Same 2 km radius, same index — so they compare directly.
- McAllen81.0 km
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- Air quality
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- Reynosa81.1 km
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- Air quality
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- Corpus Christi213.9 km
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- Air quality
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- Ciudad Benito Juárez260.4 km
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- Air quality
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- Nuevo Laredo267.4 km
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- Air quality
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- Laredo268.9 km
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- Air quality
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Frequently asked
Questions about Heroica Matamoros
What is the air quality (AQI) in Heroica Matamoros right now?
The latest reading for Heroica Matamoros shows an AQI of 58 (Moderate), measured Nov 11, 09:56 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Brownsville Sensor #6, 2.5 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Heroica Matamoros today?
At AQI 58 (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 Heroica Matamoros been like this week?
Over the last 7 days, the CAMS air-quality model put Heroica Matamoros's daily AQI at 33 on average, from 19 on Nov 10 to an hourly peak of 58 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Heroica Matamoros lost since 2001?
Since 2001, the area within 10 km of Heroica Matamoros has lost about 143 hectares of forest (about 200 football pitches): 15% of the forest it had in 2000. Most of it (93%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Heroica Matamoros grew from about 1,310 hectares to 1,450 hectares, a net gain of about 139 hectares (+11%). New forest grew on about 247 hectares, while 108 hectares were lost.
What is the tree count in Heroica Matamoros?
Heroica Matamoros has an estimated 60,893 trees across the 12.49 km² of land measured — 19.5% tree cover, 10 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Heroica Matamoros need?
Heroica Matamoros needs roughly 32,789 more trees to close a 10-point shortfall against its 30% tree-cover target — about 721.4 t of extra CO₂ absorbed per year once grown.
How are Heroica Matamoros's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Zona 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 Zona Centro; the tree count is an estimate derived from that cover.
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