City report · Niue
Alofi Air quality today
Air quality in Alofi currently reads AQI 59 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 59
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 14.0
- tree cover
- 89.7%
- trees in this area
- 178K
- more trees needed
- 0
Measured across a 2 km radius around Alofi, Niue (12.57 km²), from a satellite image of Aug 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Alofi · AQI 59 (Moderate)
Alofi's tree count comes to 177,816 trees across 7.93 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Alofi today: AQI 59, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 10:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
14.0
PM10
24.3
NO₂
0.0
O₃
52.0
SO₂
0.2
CO
65.0
- 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 Alofi's daily AQI at 55 on average, from 51 on Nov 9 to an hourly peak of 65 on Nov 8.
Where Alofi stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Alofi: Healthy tree cover
89.7% tree cover against a 30% healthy-neighborhood target, across 7.93 km² of land.
Trees in this area
177,816
Target trees
177,816
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Alofi lost?
There was almost no forest around Alofi 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.
The forest-loss maps don't cover this area.
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
In the same region
Measured cities near Alofi
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Alofi with anywhere
This place
Alofi
Use this data
Put Alofi's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Alofi
What is the air quality (AQI) in Alofi right now?
The latest reading for Alofi shows an AQI of 59 (Moderate), observed Nov 10, 10:00 local time via Open-Meteo / CAMS, 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 Alofi today?
At AQI 59 (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 Alofi been like this week?
Over the last 7 days, the CAMS air-quality model put Alofi's daily AQI at 55 on average, from 51 on Nov 9 to an hourly peak of 65 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Alofi lost since 2001?
There was almost no forest around Alofi 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 Alofi?
Alofi has an estimated 177,816 trees across the 7.93 km² of land measured — 89.7% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Alofi need?
Alofi has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Alofi'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 Alofi; 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