City report · Shaanxi, China
Tongchuan Air quality today
Air quality in Tongchuan currently reads AQI 198 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Air quality right now
AQI 198
Unhealthy
- PM2.5, fine particles (µg/m³)
- 123.2
- tree cover
- 16.5%
- trees in this area
- 51.8K
- more trees needed
- 73.8K
Measured across a 2 km radius around Yaozhou District, Tongchuan, Shaanxi, China (12.57 km²), from a satellite image of Sep 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Tongchuan · AQI 198 (Unhealthy)
Tongchuan's tree count comes to 51,836 trees across 12.57 km², 24 points below the 40% tree-cover level considered healthy for this area, so roughly 73,827 more trees would close the gap.
Air quality detail
Air quality in Tongchuan today: AQI 198, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 21:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Xīnqū guǎnwěihuì, Tongchuan (铜川新区管委会), 1.7 km away · median of 2 stations
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
123.2
PM10
172.2
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Shaanxi Provincial Environmental Protection Office (陕西省环保厅)
- Outdoor exercise
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Tongchuan's daily AQI at 85 on average, from 58 on Nov 9 to an hourly peak of 153 on Nov 5.
Where Tongchuan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Tongchuan: Critically low
16.5% tree cover against a 40% healthy-neighborhood target, across 12.57 km².
Trees in this area
51,836
Target trees
125,663
More trees needed
73,827
CO₂ if planted / yr
1,624 t
Deforestation · 2001–2025
How much forest has Tongchuan lost?
There was almost no forest around Tongchuan 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.
2018: satellite photo from July 2018 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 1,260 ha
- Forest in 2020
- 1,490 ha
- Overall change
- +225 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Tongchuan grew from about 1,260 hectares to 1,490 hectares, a net gain of about 225 hectares (+18%). New forest grew on about 231 hectares, while 5 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 Tongchuan
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Tongchuan with anywhere
This place
Tongchuan
Use this data
Put Tongchuan's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Tongchuan
What is the air quality (AQI) in Tongchuan right now?
The latest reading for Tongchuan shows an AQI of 198 (Unhealthy), measured Nov 11, 21:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Xīnqū guǎnwěihuì, Tongchuan (铜川新区管委会), 1.7 km away). The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Tongchuan today?
At AQI 198 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Tongchuan been like this week?
Over the last 7 days, the CAMS air-quality model put Tongchuan's daily AQI at 85 on average, from 58 on Nov 9 to an hourly peak of 153 on Nov 5. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Tongchuan lost since 2001?
There was almost no forest around Tongchuan 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 Tongchuan grew from about 1,260 hectares to 1,490 hectares, a net gain of about 225 hectares (+18%). New forest grew on about 231 hectares, while 5 hectares were lost.
What is the tree count in Tongchuan?
Tongchuan has an estimated 51,836 trees across the 12.57 km² measured — 16.5% tree cover, 24 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Tongchuan need?
Tongchuan needs roughly 73,827 more trees to close a 24-point shortfall against its 40% tree-cover target — about 1,624 t of extra CO₂ absorbed per year once grown.
How are Tongchuan's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Yaozhou District, 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 Yaozhou District; the tree count is an estimate derived from that cover.
See your own area
What does your neighborhood look like?
Pick any point and radius to get the same air-quality and tree-cover breakdown.
Check my address