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Air quality now: AQI48Good, Talcahuano

City report · Biobio, Chile

Talcahuano Air quality today

Air quality in Talcahuano currently reads AQI 48 (Good): Air quality is satisfactory for everyone.

AQI 48

Air quality right now

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
8.2
tree cover
18.9%
trees in this area
44.7K
more trees needed
26.2K

Measured across a 2 km radius around Talcahuano, Bio Bio, Chile (12.57 km²), from a satellite image of Mar 13, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Talcahuano · AQI 48 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Mar 13, 2026

Talcahuano's tree count comes to 44,651 trees across 9.45 km² of land, 11 points below the 30% tree-cover level considered healthy for this area, so roughly 26,224 more trees would close the gap.

Air quality detail

Air quality in Talcahuano today: AQI 48, Good

Main pollutant: PM2.5 · Observed Nov 10, 22:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.

Model estimate · no ground station nearby

Health signal

Air quality is satisfactory for everyone.

PM2.5

8.2

PM10

10.8

NO₂

5.1

O₃

46.0

SO₂

2.6

CO

233.0

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 Talcahuano's daily AQI at 33 on average, from 16 on Nov 6 to an hourly peak of 60 on Nov 4.

Last 7 daysavg 33 · peak 60
Nov 4: AQI 48 (peak 60)Nov 5: AQI 46 (peak 57)Nov 6: AQI 16 (peak 43)Nov 7: AQI 16 (peak 24)Nov 8: AQI 25 (peak 44)Nov 9: AQI 34 (peak 39)Nov 10: AQI 46 (peak 52)
Nov 4Nov 10

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

Tree cover detail

Tree cover in Talcahuano: Below target

18.9% tree cover against a 30% healthy-neighborhood target, across 9.45 km² of land.

11 points below target

Trees in this area

44,651

Target trees

70,875

More trees needed

26,224

CO₂ if planted / yr

576.9 t

Deforestation · 2001–2025

How much forest has Talcahuano lost?

Since 2001, the area within 10 km of Talcahuano has lost about 1,740 hectares of forest (about 2,400 football pitches): 44% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 33 hectares (1.9%) was deforestation: forest cleared for good for farms, mines or towns.

Satellite image of the area around Talcahuano, February 2017

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

Forest lost since 2001
1,740 haabout 2,400 football pitches
Share of its forest
44%of what there was in 2000
Cleared for good
33 hadeforestation: turned into farms, mines or towns

Forest loss is slowing down: about 49 hectares a year in 2021–2025, down from 66 hectares a year in 2016–2020. The worst year was 2017, when about 131 hectares of forest were lost.

Forest lost each year around Talcahuano, 2001–2025

Hectares of forest lost each year

Forest lost each year around Talcahuano, 2001–2025. Use the left and right arrow keys to read each year.131

Show the figures as a table
Forest lost each year around Talcahuano, 2001–2025
YearCleared for goodCan grow backTotal
2001under 1 ha11 ha11 ha
2002under 1 ha25 ha26 ha
20033 ha102 ha105 ha
20041 ha81 ha82 ha
2005under 1 ha100 ha100 ha
20064 ha97 ha101 ha
20074 ha83 ha87 ha
20083 ha91 ha93 ha
20091 ha108 ha109 ha
20102 ha55 ha57 ha
20112 ha40 ha42 ha
20121 ha126 ha127 ha
2013under 1 ha109 ha109 ha
20141 ha92 ha93 ha
2015under 1 ha24 ha25 ha
20162 ha44 ha46 ha
2017under 1 ha130 ha131 ha
2018under 1 ha80 ha81 ha
2019under 1 ha41 ha41 ha
2020under 1 ha29 ha30 ha
20213 ha51 ha54 ha
2022under 1 ha52 ha52 ha
2023under 1 ha91 ha91 ha
2024under 1 ha26 ha26 ha
2025under 1 ha19 ha19 ha

What is causing deforestation around Talcahuano?

  • Loggingcan grow back98% · 1,700 ha
  • Towns and roadscleared for good1.6% · 28 ha

Also: farms, pasture and plantations, 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
3,920 ha
Forest in 2020
4,070 ha
Overall change
+152 hamore forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Talcahuano grew from about 3,920 hectares to 4,070 hectares, a net gain of about 152 hectares (+3.9%). New forest grew on about 485 hectares, while 332 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 Talcahuano

Same 2 km radius, same index — so they compare directly.

  • Concepción

    Chile

    12.8 km
    Tree cover
    28%
    Air quality
    48
  • Coronel

    Chile

    34.4 km
    Tree cover
    36%
    Air quality
    44
  • Chillán

    Chile

    91.3 km
    Tree cover
    11%
    Air quality
    55
  • Los Ángeles

    Chile

    107.0 km
    Tree cover
    15%
    Air quality
    58
  • Villa Mercedes

    Chile

    126.0 km
    Tree cover
    33%
    Air quality
    29
  • Talca

    Chile

    195.8 km
    Tree cover
    11%
    Air quality
    38

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Talcahuano air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Talcahuano

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

The latest reading for Talcahuano shows an AQI of 48 (Good), observed Nov 10, 22:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Talcahuano today?

At AQI 48 (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 Talcahuano been like this week?

Over the last 7 days, the CAMS air-quality model put Talcahuano's daily AQI at 33 on average, from 16 on Nov 6 to an hourly peak of 60 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 Talcahuano lost since 2001?

Since 2001, the area within 10 km of Talcahuano has lost about 1,740 hectares of forest (about 2,400 football pitches): 44% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 33 hectares (1.9%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 49 hectares a year in 2021–2025, down from 66 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Talcahuano grew from about 3,920 hectares to 4,070 hectares, a net gain of about 152 hectares (+3.9%). New forest grew on about 485 hectares, while 332 hectares were lost.

What is the tree count in Talcahuano?

Talcahuano has an estimated 44,651 trees across the 9.45 km² of land measured — 18.9% tree cover, 11 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Talcahuano need?

Talcahuano needs roughly 26,224 more trees to close a 11-point shortfall against its 30% tree-cover target — about 576.9 t of extra CO₂ absorbed per year once grown.

How are Talcahuano'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 Talcahuano; the tree count is an estimate derived from that cover.

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