City report · Zhejiang, China
Cixi Air quality today
Air quality in Cixi currently reads AQI 70 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 70
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 19.6
- tree cover
- 14.1%
- trees in this area
- 44.3K
- more trees needed
- 50.0K
Measured across a 2 km radius around Cixi, Ningbo, Zhejiang, China (12.57 km²), from a satellite image of Sep 26, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Cixi · AQI 70 (Moderate)
Cixi's tree count comes to 44,296 trees across 12.57 km², 16 points below the 30% tree-cover level considered healthy for this area, so roughly 49,951 more trees would close the gap.
Air quality detail
Air quality in Cixi today: AQI 70, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 19:00 local time via Open-Meteo / CAMS, corrected with 9 ground-station cities within 125 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 9 station cities within 125 km, e.g. Jinshan District, Shanghai, China and Fengxian District, Shanghai, China
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
19.6
PM10
41.3
NO₂
48.3
O₃
28.0
SO₂
13.3
CO
334.0
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Cixi's daily AQI at 88 on average, from 64 on Nov 8 to an hourly peak of 164 on Nov 11.
Where Cixi stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Cixi: Critically low
14.1% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
44,296
Target trees
94,247
More trees needed
49,951
CO₂ if planted / yr
1,099 t
Deforestation · 2001–2025
How much forest has Cixi lost?
Since 2001, the area within 10 km of Cixi has lost about 170 hectares of forest (about 240 football pitches): 6.7% of the forest it had in 2000. Most of it (71%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 170 haabout 240 football pitches
- Share of its forest
- 6.7%of what there was in 2000
- Cleared for good
- 121 hadeforestation: turned into farms, mines or towns
The worst year was 2020, when about 23 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 | 3 ha | 1 ha | 5 ha |
| 2003 | under 1 ha | under 1 ha | 2 ha |
| 2004 | 2 ha | under 1 ha | 2 ha |
| 2005 | 3 ha | 1 ha | 4 ha |
| 2006 | 4 ha | 3 ha | 6 ha |
| 2007 | 4 ha | 4 ha | 8 ha |
| 2008 | 12 ha | 6 ha | 19 ha |
| 2009 | 4 ha | 1 ha | 6 ha |
| 2010 | 2 ha | under 1 ha | 2 ha |
| 2011 | 2 ha | 1 ha | 4 ha |
| 2012 | 6 ha | 3 ha | 9 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | 1 ha | 2 ha |
| 2015 | under 1 ha | 1 ha | 2 ha |
| 2016 | 7 ha | 3 ha | 10 ha |
| 2017 | 13 ha | 2 ha | 14 ha |
| 2018 | 14 ha | under 1 ha | 15 ha |
| 2019 | 4 ha | 1 ha | 6 ha |
| 2020 | 13 ha | 10 ha | 23 ha |
| 2021 | 5 ha | 3 ha | 8 ha |
| 2022 | 13 ha | 1 ha | 14 ha |
| 2023 | 3 ha | 2 ha | 5 ha |
| 2024 | 3 ha | under 1 ha | 3 ha |
| 2025 | 2 ha | under 1 ha | 2 ha |
What is causing deforestation around Cixi?
- Towns and roadscleared for good44% · 75 ha
- Loggingcan grow back28% · 47 ha
- Farms, pasture and plantationscleared for good14% · 23 ha
Also: mining and energy, 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
- 4,840 ha
- Forest in 2020
- 5,600 ha
- Overall change
- +756 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Cixi grew from about 4,840 hectares to 5,600 hectares, a net gain of about 756 hectares (+16%). New forest grew on about 933 hectares, while 178 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 Cixi
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Cixi with anywhere
This place
Cixi
Use this data
Put Cixi's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Cixi
What is the air quality (AQI) in Cixi right now?
The latest reading for Cixi shows an AQI of 70 (Moderate), observed Nov 11, 19:00 local time via Open-Meteo / CAMS, corrected with 9 ground-station cities within 125 km, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Cixi today?
At AQI 70 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Cixi been like this week?
Over the last 7 days, the CAMS air-quality model put Cixi's daily AQI at 88 on average, from 64 on Nov 8 to an hourly peak of 164 on Nov 11. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Cixi lost since 2001?
Since 2001, the area within 10 km of Cixi has lost about 170 hectares of forest (about 240 football pitches): 6.7% of the forest it had in 2000. Most of it (71%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Cixi grew from about 4,840 hectares to 5,600 hectares, a net gain of about 756 hectares (+16%). New forest grew on about 933 hectares, while 178 hectares were lost.
What is the tree count in Cixi?
Cixi has an estimated 44,296 trees across the 12.57 km² measured — 14.1% tree cover, 16 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Cixi need?
Cixi needs roughly 49,951 more trees to close a 16-point shortfall against its 30% tree-cover target — about 1,099 t of extra CO₂ absorbed per year once grown.
How are Cixi'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 Cixi; 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