City report · Henan, China
Nanyang Air quality today
Air quality in Nanyang currently reads AQI 110 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 110
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 43.6
- tree cover
- 9.7%
- trees in this area
- 30.0K
- more trees needed
- 78.3K
Measured across a 2 km radius around Wancheng District, Nanyang, Henan, China (12.57 km²), from a satellite image of Sep 3, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nanyang · AQI 110 (Unhealthy for sensitive groups)
Nanyang's tree count comes to 30,016 trees across 12.38 km² of land, 25 points below the 35% tree-cover level considered healthy for this area, so roughly 78,290 more trees would close the gap.
Air quality detail
Air quality in Nanyang today: AQI 110, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 10, 22:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 245 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 4 station cities within 245 km, e.g. Pingdingshan and Luoyang
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
43.6
PM10
49.8
NO₂
65.7
O₃
0.0
SO₂
9.9
CO
857.0
- 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 Nanyang's daily AQI at 104 on average, from 89 on Nov 5 to an hourly peak of 154 on Nov 4.
Where Nanyang stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nanyang: Critically low
9.7% tree cover against a 35% healthy-neighborhood target, across 12.38 km² of land.
Trees in this area
30,016
Target trees
108,306
More trees needed
78,290
CO₂ if planted / yr
1,722 t
Deforestation · 2001–2025
How much forest has Nanyang lost?
Since 2001, the area within 10 km of Nanyang has lost about 34 hectares of forest (about 48 football pitches): 5.7% of the forest it had in 2000. Most of it (81%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 34 haabout 48 football pitches
- Share of its forest
- 5.7%of what there was in 2000
- Cleared for good
- 28 hadeforestation: turned into farms, mines or towns
The worst year was 2002, when about 22 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 | under 1 ha | 1 ha | 2 ha |
| 2002 | 18 ha | 4 ha | 22 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 1 ha | under 1 ha | 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | 1 ha | under 1 ha | 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | 1 ha |
| 2012 | 1 ha | under 1 ha | 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | 1 ha | under 1 ha | 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Nanyang?
- Farms, pasture and plantationscleared for good45% · 15 ha
- Towns and roadscleared for good36% · 12 ha
- Unknown causescause unknown19% · 7 ha
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
- 966 ha
- Forest in 2020
- 1,530 ha
- Overall change
- +566 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Nanyang grew from about 966 hectares to 1,530 hectares, a net gain of about 566 hectares (+59%). New forest grew on about 574 hectares, while 7 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 Nanyang
What is the air quality (AQI) in Nanyang right now?
The latest reading for Nanyang shows an AQI of 110 (Unhealthy for sensitive groups), observed Nov 10, 22:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 245 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 Nanyang today?
At AQI 110 (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 Nanyang been like this week?
Over the last 7 days, the CAMS air-quality model put Nanyang's daily AQI at 104 on average, from 89 on Nov 5 to an hourly peak of 154 on Nov 4. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Nanyang lost since 2001?
Since 2001, the area within 10 km of Nanyang has lost about 34 hectares of forest (about 48 football pitches): 5.7% of the forest it had in 2000. Most of it (81%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Nanyang grew from about 966 hectares to 1,530 hectares, a net gain of about 566 hectares (+59%). New forest grew on about 574 hectares, while 7 hectares were lost.
What is the tree count in Nanyang?
Nanyang has an estimated 30,016 trees across the 12.38 km² of land measured — 9.7% tree cover, 25 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Nanyang need?
Nanyang needs roughly 78,290 more trees to close a 25-point shortfall against its 35% tree-cover target — about 1,722 t of extra CO₂ absorbed per year once grown.
How are Nanyang'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 Wancheng District; the tree count is an estimate derived from that cover.
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