City report · Peru
Ayacucho Air quality today
Air quality in Ayacucho currently reads AQI 17 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 17
Good
- PM2.5, fine particles (µg/m³)
- 2.6
- tree cover
- 7.7%
- trees in this area
- 24.2K
- more trees needed
- 70.1K
Measured across a 2 km radius around Cercado de Ayacucho, Ayacucho, Peru (12.57 km²), from a satellite image of Sep 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ayacucho · AQI 17 (Good)
Ayacucho's tree count comes to 24,190 trees across 12.57 km², 22 points below the 30% tree-cover level considered healthy for this area, so roughly 70,058 more trees would close the gap.
Air quality detail
Air quality in Ayacucho today: AQI 17, Good
Main pollutant: PM2.5 · Observed Nov 10, 13:00 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
2.6
PM10
2.6
NO₂
0.4
O₃
70.0
SO₂
0.5
CO
163.0
- 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 Ayacucho's daily AQI at 23 on average, from 17 on Nov 6 to an hourly peak of 59 on Nov 7.
Where Ayacucho stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ayacucho: Critically low
7.7% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
24,190
Target trees
94,248
More trees needed
70,058
CO₂ if planted / yr
1,541 t
Deforestation · 2001–2025
How much forest has Ayacucho lost?
Almost no forest has been lost around Ayacucho since 2001: less than 1 hectare of the 387 hectares there in 2000.
2017: satellite photo from May 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 715 ha
- Forest in 2020
- 821 ha
- Overall change
- +106 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ayacucho grew from about 715 hectares to 821 hectares, a net gain of about 106 hectares (+15%). New forest grew on about 133 hectares, while 27 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 Ayacucho
What is the air quality (AQI) in Ayacucho right now?
The latest reading for Ayacucho shows an AQI of 17 (Good), observed Nov 10, 13:00 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 Ayacucho 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 Ayacucho been like this week?
Over the last 7 days, the CAMS air-quality model put Ayacucho's daily AQI at 23 on average, from 17 on Nov 6 to an hourly peak of 59 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Ayacucho lost since 2001?
Almost no forest has been lost around Ayacucho since 2001: less than 1 hectare of the 387 hectares there in 2000. Comparing satellite maps from 2000 and 2020, the forest around Ayacucho grew from about 715 hectares to 821 hectares, a net gain of about 106 hectares (+15%). New forest grew on about 133 hectares, while 27 hectares were lost.
What is the tree count in Ayacucho?
Ayacucho has an estimated 24,190 trees across the 12.57 km² measured — 7.7% tree cover, 22 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Ayacucho need?
Ayacucho needs roughly 70,058 more trees to close a 22-point shortfall against its 30% tree-cover target — about 1,541 t of extra CO₂ absorbed per year once grown.
How are Ayacucho'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 Cercado de Ayacucho; the tree count is an estimate derived from that cover.
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