City report · Sichuan, China
Mianzhu, Deyang, Sichuan Air quality today
Air quality in Mianzhu, Deyang, Sichuan currently reads AQI 137 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 137
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 58.2
- tree cover
- 26.1%
- trees in this area
- 82.0K
- more trees needed
- 28.0K
Measured across a 2 km radius around Mianzhu, Deyang, Sichuan, China (12.57 km²), from a satellite image of Sep 5, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Mianzhu, Deyang, Sichuan · AQI 137 (Unhealthy for sensitive groups)
Mianzhu, Deyang, Sichuan's tree count comes to 81,996 trees across 12.57 km², 9 points below the 35% tree-cover level considered healthy for this area, so roughly 27,960 more trees would close the gap.
Air quality detail
Air quality in Mianzhu, Deyang, Sichuan today: AQI 137, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 10, 22:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 165 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 5 station cities within 165 km, e.g. Deyang and Deyang
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
58.2
PM10
92.0
NO₂
67.4
O₃
0.0
SO₂
9.1
CO
999.0
- Outdoor exercise
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Mianzhu, Deyang, Sichuan's daily AQI at 117 on average, from 69 on Nov 8 to an hourly peak of 188 on Nov 6.
Where Mianzhu, Deyang, Sichuan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Mianzhu, Deyang, Sichuan: Below target
26.1% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
81,996
Target trees
109,956
More trees needed
27,960
CO₂ if planted / yr
615.1 t
Deforestation · 2001–2025
How much forest has Mianzhu, Deyang, Sichuan lost?
There was almost no forest around Mianzhu, Deyang, Sichuan in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 659 ha
- Forest in 2020
- 1,520 ha
- Overall change
- +859 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Mianzhu, Deyang, Sichuan grew from about 659 hectares to 1,520 hectares, a net gain of about 859 hectares (+130%). New forest grew on about 860 hectares, while under 1 hectare was 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 Mianzhu, Deyang, Sichuan
What is the air quality (AQI) in Mianzhu, Deyang, Sichuan right now?
The latest reading for Mianzhu, Deyang, Sichuan shows an AQI of 137 (Unhealthy for sensitive groups), observed Nov 10, 22:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 165 km, US EPA index. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Mianzhu, Deyang, Sichuan today?
At AQI 137 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Mianzhu, Deyang, Sichuan been like this week?
Over the last 7 days, the CAMS air-quality model put Mianzhu, Deyang, Sichuan's daily AQI at 117 on average, from 69 on Nov 8 to an hourly peak of 188 on Nov 6. On 5 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Mianzhu, Deyang, Sichuan lost since 2001?
There was almost no forest around Mianzhu, Deyang, Sichuan in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Mianzhu, Deyang, Sichuan grew from about 659 hectares to 1,520 hectares, a net gain of about 859 hectares (+130%). New forest grew on about 860 hectares, while under 1 hectare was lost.
What is the tree count in Mianzhu, Deyang, Sichuan?
Mianzhu, Deyang, Sichuan has an estimated 81,996 trees across the 12.57 km² measured — 26.1% tree cover, 9 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Mianzhu, Deyang, Sichuan need?
Mianzhu, Deyang, Sichuan needs roughly 27,960 more trees to close a 9-point shortfall against its 35% tree-cover target — about 615.1 t of extra CO₂ absorbed per year once grown.
How are Mianzhu, Deyang, Sichuan'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 Mianzhu; the tree count is an estimate derived from that cover.
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