City report · Heilongjiang, China
Zhaodong Air quality today
Air quality in Zhaodong currently reads AQI 363 (Hazardous): Emergency conditions — avoid outdoor activity.
AQI 363
Air quality right now
Hazardous
- PM2.5, fine particles (µg/m³)
- 256.1
- tree cover
- 19.0%
- trees in this area
- 58.7K
- more trees needed
- 80.4K
Measured across a 2 km radius around Zhaodong, Suihua, Heilongjiang, China (12.57 km²), from a satellite image of Sep 24, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Zhaodong · AQI 363 (Hazardous)
Zhaodong's tree count comes to 58,735 trees across 12.37 km² of land, 26 points below the 45% tree-cover level considered healthy for this area, so roughly 80,375 more trees would close the gap.
Air quality detail
Air quality in Zhaodong today: AQI 363, Hazardous
Main pollutant: PM2.5 · Observed Nov 11, 07:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 105 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 5 station cities within 105 km, e.g. Harbin and Daqing
Health signal
Emergency conditions — avoid outdoor activity.
PM2.5
256.1
PM10
77.8
NO₂
33.0
O₃
6.0
SO₂
25.6
CO
1549.0
- Outdoor exercise
- Everyone should avoid all outdoor exertion
- Windows
- Keep them closed and seal gaps
- Mask
- Wear an N95 if you must go out
- Air purifier
- Run one on high
Over the last 7 days, the CAMS air-quality model put Zhaodong's daily AQI at 88 on average, from 61 on Nov 9 to an hourly peak of 158 on Nov 11.
Where Zhaodong stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Zhaodong: Critically low
19.0% tree cover against a 45% healthy-neighborhood target, across 12.37 km² of land.
Trees in this area
58,735
Target trees
139,110
More trees needed
80,375
CO₂ if planted / yr
1,768 t
Deforestation · 2001–2025
How much forest has Zhaodong lost?
There was almost no forest around Zhaodong 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 July 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 32 ha
- Forest in 2020
- 102 ha
- Overall change
- +70 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Zhaodong grew from about 32 hectares to 102 hectares, a net gain of about 70 hectares. New forest grew on about 70 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 Zhaodong
What is the air quality (AQI) in Zhaodong right now?
The latest reading for Zhaodong shows an AQI of 363 (Hazardous), observed Nov 11, 07:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 105 km, US EPA index. The main pollutant is PM2.5. Emergency conditions — avoid outdoor activity.
Is it safe to exercise outside in Zhaodong today?
At AQI 363 (Hazardous): everyone should avoid all outdoor exertion. Windows: keep them closed and seal gaps. Masks: wear an N95 if you must go out. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Zhaodong been like this week?
Over the last 7 days, the CAMS air-quality model put Zhaodong's daily AQI at 88 on average, from 61 on Nov 9 to an hourly peak of 158 on Nov 11. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Zhaodong lost since 2001?
There was almost no forest around Zhaodong 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 Zhaodong grew from about 32 hectares to 102 hectares, a net gain of about 70 hectares. New forest grew on about 70 hectares, while under 1 hectare was lost.
What is the tree count in Zhaodong?
Zhaodong has an estimated 58,735 trees across the 12.37 km² of land measured — 19.0% tree cover, 26 percentage points short of the 45% tree-cover target set for this area.
How many more trees does Zhaodong need?
Zhaodong needs roughly 80,375 more trees to close a 26-point shortfall against its 45% tree-cover target — about 1,768 t of extra CO₂ absorbed per year once grown.
How are Zhaodong'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 Zhaodong; the tree count is an estimate derived from that cover.
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