City report · Shandong, China
Xinzhai Air quality today
Air quality in Xinzhai currently reads AQI 117 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 117
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 42.0
- tree cover
- 13.0%
- trees in this area
- 40.8K
- more trees needed
- 69.1K
Measured across a 2 km radius around Linqu County, Weifang, Shandong, China (12.57 km²), from a satellite image of Sep 22, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Xinzhai · AQI 117 (Unhealthy for sensitive groups)
Xinzhai's tree count comes to 40,841 trees across 12.57 km², 22 points below the 35% tree-cover level considered healthy for this area, so roughly 69,115 more trees would close the gap.
Air quality detail
Air quality in Xinzhai today: AQI 117, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 22:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Linyi Waterworks, Linyi County (临朐县临朐自来水厂), 14.1 km away
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
42.0
PM10
63.1
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Environmental Protection Department of Shandong Province (山东省环境保护厅)
- 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 Xinzhai's daily AQI at 93 on average, from 55 on Nov 8 to an hourly peak of 161 on Nov 7.
Where Xinzhai stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Xinzhai: Critically low
13.0% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
40,841
Target trees
109,956
More trees needed
69,115
CO₂ if planted / yr
1,521 t
Deforestation · 2001–2025
How much forest has Xinzhai lost?
Since 2001, the area within 10 km of Xinzhai has lost about 9 hectares of forest (about 12 football pitches): 7.1% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. Almost none of it was deforestation, meaning forest cleared for good.
2018: satellite photo from June 2018 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 9 haabout 12 football pitches
- Share of its forest
- 7.1%of what there was in 2000
- Cleared for good
- under 1 hadeforestation: turned into farms, mines or towns
The worst year was 2022, 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 | 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 | under 1 ha | under 1 ha |
| 2007 | under 1 ha | 2 ha | 2 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 | 1 ha | 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | 1 ha | 1 ha |
| 2022 | under 1 ha | 2 ha | 2 ha |
| 2023 | under 1 ha | 1 ha | 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 Xinzhai?
- Loggingcan grow back97% · 8 ha
- Unknown causescause unknown3.5% · under 1 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
- 1,980 ha
- Forest in 2020
- 3,050 ha
- Overall change
- +1,070 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Xinzhai grew from about 1,980 hectares to 3,050 hectares, a net gain of about 1,070 hectares (+54%). New forest grew on about 1,070 hectares, while 1 hectare 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 Xinzhai
What is the air quality (AQI) in Xinzhai right now?
The latest reading for Xinzhai shows an AQI of 117 (Unhealthy for sensitive groups), measured Nov 11, 22:00 local time by the Linyi Waterworks, Linyi County (临朐县临朐自来水厂) ground monitoring station, 14.1 km away, via OpenAQ. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Xinzhai today?
At AQI 117 (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 Xinzhai been like this week?
Over the last 7 days, the CAMS air-quality model put Xinzhai's daily AQI at 93 on average, from 55 on Nov 8 to an hourly peak of 161 on Nov 7. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Xinzhai lost since 2001?
Since 2001, the area within 10 km of Xinzhai has lost about 9 hectares of forest (about 12 football pitches): 7.1% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. Almost none of it was deforestation, meaning forest cleared for good. Comparing satellite maps from 2000 and 2020, the forest around Xinzhai grew from about 1,980 hectares to 3,050 hectares, a net gain of about 1,070 hectares (+54%). New forest grew on about 1,070 hectares, while 1 hectare were lost.
What is the tree count in Xinzhai?
Xinzhai has an estimated 40,841 trees across the 12.57 km² measured — 13.0% tree cover, 22 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Xinzhai need?
Xinzhai needs roughly 69,115 more trees to close a 22-point shortfall against its 35% tree-cover target — about 1,521 t of extra CO₂ absorbed per year once grown.
How are Xinzhai's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Linqu County, 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 Linqu County; the tree count is an estimate derived from that cover.
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