City report · Heilongjiang, China
Jiamusi Air quality today
Air quality in Jiamusi currently reads AQI 182 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Air quality right now
AQI 182
Unhealthy
- PM2.5, fine particles (µg/m³)
- 100.0
- tree cover
- 19.7%
- trees in this area
- 61.8K
- more trees needed
- 63.6K
Measured across a 2 km radius around Jiamusi, Heilongjiang, China (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Jiamusi · AQI 182 (Unhealthy)
Jiamusi's tree count comes to 61,766 trees across 12.54 km² of land, 20 points below the 40% tree-cover level considered healthy for this area, so roughly 63,647 more trees would close the gap.
Air quality detail
Air quality in Jiamusi today: AQI 182, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 23:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Jiamusi (佳木斯), 700 m away · median of 2 stations
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
100.0
PM10
99.4
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 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 Jiamusi's daily AQI at 98 on average, from 56 on Nov 7 to an hourly peak of 183 on Nov 10.
Where Jiamusi stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Jiamusi: Critically low
19.7% tree cover against a 40% healthy-neighborhood target, across 12.54 km² of land.
Trees in this area
61,766
Target trees
125,413
More trees needed
63,647
CO₂ if planted / yr
1,400 t
Deforestation · 2001–2025
How much forest has Jiamusi lost?
Since 2001, the area within 10 km of Jiamusi has lost about 34 hectares of forest (about 48 football pitches): 5.4% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 2 hectares (5%) was deforestation: forest cleared for good for farms, mines or towns.
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
- 5.4%of what there was in 2000
- Cleared for good
- 2 hadeforestation: turned into farms, mines or towns
The worst year was 2007, when about 12 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 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | 10 ha | 10 ha |
| 2007 | under 1 ha | 12 ha | 12 ha |
| 2008 | under 1 ha | 5 ha | 5 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 | 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 | 1 ha | 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 Jiamusi?
- Loggingcan grow back86% · 30 ha
- Towns and roadscleared for good2.9% · 1 ha
- Farms, pasture and plantationscleared for good1.7% · 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
- 902 ha
- Forest in 2020
- 1,030 ha
- Overall change
- +126 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Jiamusi grew from about 902 hectares to 1,030 hectares, a net gain of about 126 hectares (+14%). New forest grew on about 150 hectares, while 23 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 Jiamusi
Same 2 km radius, same index — so they compare directly.
- Hegang61.2 km
China
- Tree cover
- 21%
- Air quality
- 161
- Shuangyashan64.0 km
China
- Tree cover
- 22%
- Air quality
- 169
- 86.2 km
- Tree cover
- 34%
- Air quality
- 169
- Lianhe87.1 km
China
- Tree cover
- 33%
- Air quality
- 104
- Qitaihe125.9 km
China
- Tree cover
- 25%
- Air quality
- 194
- Yichun, Heilongjiang149.3 km
China
- Tree cover
- 41%
- Air quality
- 71
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Frequently asked
Questions about Jiamusi
What is the air quality (AQI) in Jiamusi right now?
The latest reading for Jiamusi shows an AQI of 182 (Unhealthy), measured Nov 11, 23:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Jiamusi (佳木斯), 700 m away). The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Jiamusi today?
At AQI 182 (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 Jiamusi been like this week?
Over the last 7 days, the CAMS air-quality model put Jiamusi's daily AQI at 98 on average, from 56 on Nov 7 to an hourly peak of 183 on Nov 10. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Jiamusi lost since 2001?
Since 2001, the area within 10 km of Jiamusi has lost about 34 hectares of forest (about 48 football pitches): 5.4% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 2 hectares (5%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Jiamusi grew from about 902 hectares to 1,030 hectares, a net gain of about 126 hectares (+14%). New forest grew on about 150 hectares, while 23 hectares were lost.
What is the tree count in Jiamusi?
Jiamusi has an estimated 61,766 trees across the 12.54 km² of land measured — 19.7% tree cover, 20 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Jiamusi need?
Jiamusi needs roughly 63,647 more trees to close a 20-point shortfall against its 40% tree-cover target — about 1,400 t of extra CO₂ absorbed per year once grown.
How are Jiamusi's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Jiamusi, 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 Jiamusi; the tree count is an estimate derived from that cover.
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