City report · Qinghai, China
Nianbo Air quality today
Air quality in Nianbo currently reads AQI 58 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 58
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 16.0
- tree cover
- 12.3%
- trees in this area
- 38.1K
- more trees needed
- 54.9K
Measured across a 2 km radius around Ledu District, Haidong, Qinghai, China (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nianbo · AQI 58 (Moderate)
Nianbo's tree count comes to 38,139 trees across 12.41 km² of land, 18 points below the 30% tree-cover level considered healthy for this area, so roughly 54,883 more trees would close the gap.
Air quality detail
Air quality in Nianbo today: AQI 58, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 19:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 165 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 4 station cities within 165 km, e.g. Xining and Lanzhou
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
16.0
PM10
12.5
NO₂
20.4
O₃
65.0
SO₂
5.6
CO
255.0
- 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 Nianbo's daily AQI at 56 on average, from 39 on Nov 8 to an hourly peak of 90 on Nov 11.
Where Nianbo stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nianbo: Critically low
12.3% tree cover against a 30% healthy-neighborhood target, across 12.41 km² of land.
Trees in this area
38,139
Target trees
93,022
More trees needed
54,883
CO₂ if planted / yr
1,207 t
Deforestation · 2001–2025
How much forest has Nianbo lost?
There was almost no forest around Nianbo 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.
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. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Nianbo
What is the air quality (AQI) in Nianbo right now?
The latest reading for Nianbo shows an AQI of 58 (Moderate), observed Nov 11, 19:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 165 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 Nianbo today?
At AQI 58 (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 Nianbo been like this week?
Over the last 7 days, the CAMS air-quality model put Nianbo's daily AQI at 56 on average, from 39 on Nov 8 to an hourly peak of 90 on Nov 11. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Nianbo lost since 2001?
There was almost no forest around Nianbo 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.
What is the tree count in Nianbo?
Nianbo has an estimated 38,139 trees across the 12.41 km² of land measured — 12.3% tree cover, 18 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Nianbo need?
Nianbo needs roughly 54,883 more trees to close a 18-point shortfall against its 30% tree-cover target — about 1,207 t of extra CO₂ absorbed per year once grown.
How are Nianbo'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 Ledu District; the tree count is an estimate derived from that cover.
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