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City report · Cocos Islands

West Island Air quality today

Air quality in West Island currently reads AQI 52 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.

Air quality right now

AQI 52

Moderate

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
10.2
tree cover
91.1%
trees in this area
65.5K
more trees needed
0

Measured across a 2 km radius around West Island Shire of Cocos 6799, Cocos (Keeling) Islands (12.57 km²), from a satellite image of Sep 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

West Island · AQI 52 (Moderate)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 4, 2026

West Island's tree count comes to 65,540 trees across 2.88 km² of land, already at or above the 30% tree-cover level considered healthy for this area.

Air quality detail

Air quality in West Island today: AQI 52, Moderate

Main pollutant: PM2.5 · Observed Nov 11, 17:30 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

10.2

PM10

17.3

NO₂

0.0

O₃

46.0

SO₂

0.4

CO

121.0

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 West Island's daily AQI at 55 on average, from 53 on Nov 10 to an hourly peak of 62 on Nov 9.

Last 7 daysavg 55 · peak 62
Nov 5: AQI 56 (peak 58)Nov 6: AQI 55 (peak 57)Nov 7: AQI 56 (peak 59)Nov 8: AQI 56 (peak 58)Nov 9: AQI 59 (peak 62)Nov 10: AQI 53 (peak 59)Nov 11: AQI 53 (peak 56)
Nov 5Nov 11

Where West Island stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in West Island: Healthy tree cover

91.1% tree cover against a 30% healthy-neighborhood target, across 2.88 km² of land.

Target reached

Trees in this area

65,540

Target trees

65,540

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has West Island lost?

There was almost no forest around West Island 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.

Satellite image of the area around West Island, December 2023

The forest-loss maps don't cover this area.

2023: satellite photo from December 2023 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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West Island air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about West Island

What is the air quality (AQI) in West Island right now?

The latest reading for West Island shows an AQI of 52 (Moderate), observed Nov 11, 17:30 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 West Island today?

At AQI 52 (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 West Island been like this week?

Over the last 7 days, the CAMS air-quality model put West Island's daily AQI at 55 on average, from 53 on Nov 10 to an hourly peak of 62 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

How much forest has the area around West Island lost since 2001?

There was almost no forest around West Island 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 West Island?

West Island has an estimated 65,540 trees across the 2.88 km² of land measured — 91.1% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does West Island need?

West Island has already reached its tree-cover target, so no additional trees are needed to close the gap.

How are West Island'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 West Island Shire of Cocos 6799; the tree count is an estimate derived from that cover.

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