City report · Heilongjiang, China
Suihua Air quality today
Air quality in Suihua currently reads AQI 294 (Very unhealthy): Health alert — everyone should avoid long outdoor exertion.
Air quality right now
AQI 294
Very unhealthy
- PM2.5, fine particles (µg/m³)
- 219.1
- tree cover
- 16.9%
- trees in this area
- 52.8K
- more trees needed
- 87.7K
Measured across a 2 km radius around Beilin District, Suihua, 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.
Suihua · AQI 294 (Very unhealthy)
Suihua's tree count comes to 52,774 trees across 12.49 km² of land, 28 points below the 45% tree-cover level considered healthy for this area, so roughly 87,749 more trees would close the gap.
Air quality detail
Air quality in Suihua today: AQI 294, Very 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 · Party and government office center, Suihua (绥化党政办公中心), 600 m away · median of 2 stations
Health signal
Health alert — everyone should avoid long outdoor exertion.
PM2.5
219.1
PM10
252.0
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Helongjiang Environmental Protection Agency (黑龙江省空气质量实时发布平台)
- Outdoor exercise
- Everyone should avoid long or hard exercise outdoors; sensitive groups, all outdoor exertion
- Windows
- Keep them closed
- Mask
- Wear an N95 if you go out
- Air purifier
- Run one on high
Over the last 7 days, the CAMS air-quality model put Suihua's daily AQI at 91 on average, from 61 on Nov 7 to an hourly peak of 162 on Nov 10.
Where Suihua stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Suihua: Critically low
16.9% tree cover against a 45% healthy-neighborhood target, across 12.49 km² of land.
Trees in this area
52,774
Target trees
140,523
More trees needed
87,749
CO₂ if planted / yr
1,930 t
Deforestation · 2001–2025
How much forest has Suihua lost?
There was very little forest around Suihua in 2000, about 61 hectares, and about 7 hectares of it has been lost 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.
The worst year was 2003, when about 2 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 | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | 1 ha | under 1 ha | 2 ha |
| 2004 | under 1 ha | under 1 ha | 2 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | under 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 | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 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 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Suihua?
- Farms, pasture and plantationscleared for good49% · 3 ha
- Loggingcan grow back4.5% · under 1 ha
- Towns and roadscleared for good1.5% · under 1 ha
Also: unknown causes.
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
- 122 ha
- Forest in 2020
- 268 ha
- Overall change
- +146 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Suihua grew from about 122 hectares to 268 hectares, a net gain of about 146 hectares (+120%). New forest grew on about 152 hectares, while 6 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 Suihua
What is the air quality (AQI) in Suihua right now?
The latest reading for Suihua shows an AQI of 294 (Very unhealthy), measured Nov 11, 21:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Party and government office center, Suihua (绥化党政办公中心), 600 m away). The main pollutant is PM2.5. Health alert — everyone should avoid long outdoor exertion.
Is it safe to exercise outside in Suihua today?
At AQI 294 (Very unhealthy): everyone should avoid long or hard exercise outdoors; sensitive groups, all outdoor exertion. Windows: keep them closed. Masks: wear an N95 if you go out. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Suihua been like this week?
Over the last 7 days, the CAMS air-quality model put Suihua's daily AQI at 91 on average, from 61 on Nov 7 to an hourly peak of 162 on Nov 10. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Suihua lost since 2001?
There was very little forest around Suihua in 2000, about 61 hectares, and about 7 hectares of it has been lost 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 Suihua grew from about 122 hectares to 268 hectares, a net gain of about 146 hectares (+120%). New forest grew on about 152 hectares, while 6 hectares were lost.
What is the tree count in Suihua?
Suihua has an estimated 52,774 trees across the 12.49 km² of land measured — 16.9% tree cover, 28 percentage points short of the 45% tree-cover target set for this area.
How many more trees does Suihua need?
Suihua needs roughly 87,749 more trees to close a 28-point shortfall against its 45% tree-cover target — about 1,930 t of extra CO₂ absorbed per year once grown.
How are Suihua's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Beilin 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 Beilin District; the tree count is an estimate derived from that cover.
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