Al Ain City vs Şaḩam
Tree cover and air quality for both, measured the same way: Sentinel-2 imagery at 10 m detail over a 2 km radius from each city centre, and the live US EPA air quality index. Same radius and same index, so the two numbers compare directly.
Şaḩam has more tree cover — 9.1% against 2.3%.
Şaḩam has cleaner air right now — AQI 83 against 108.
- Tree cover gap
- 6.8 points
- Şaḩam is ahead.
- Air quality gap
- 25 AQI
- Şaḩam is cleaner.
- Trees between them
- 8.9K
- Şaḩam has more standing.
United Arab Emirates
Oman
Tree cover
Share of the 2 km radius under canopy.
2.3%
9.1%
Air quality index
US EPA index, live, with its band. Lower is better.
108 · Unhealthy for sensitive groups
83 · Moderate
Trees standing
Estimated from the measured canopy area.
7.2K
16.2K
Trees still needed
To reach the same canopy target. Fewer is better.
103K
37.1K
CO₂ absorbed each year
By the trees already standing.
159K kg
355K kg
Air quality in detail
What each city is breathing
Concentrations in µg/m³, measured at the same moment as the index above. Lower is better in every row. Both are modelled, with no ground station close enough to either.
PM2.5
Fine particles, the pollutant that usually sets the index.
38.3 µg/m³
27.2 µg/m³
PM10
Coarser particles — dust, pollen, road grit.
90.8 µg/m³
71 µg/m³
Nitrogen dioxide
Mostly traffic and combustion.
14.6 µg/m³
5 µg/m³
Ozone
Forms in sunlight; peaks on hot, still afternoons.
74 µg/m³
107 µg/m³
The last week, day by day
A single reading can catch a city on a bad afternoon. The week says whether it was the weather or the place.
| Day | Al Ain City | Şaḩam |
|---|---|---|
| 22 Sept | 111 | 78 |
| 23 Sept | 94 | 72 |
| 24 Sept | 119 | 86 |
| 25 Sept | 126 | 79 |
| 26 Sept | 139 | 99 |
| 27 Sept | 139 | 90 |
| 28 Sept | 142 | 72 |
Reading these numbers
What is actually being measured
Tree cover
The share of ground under canopy inside a 2 km radius of each city centre, read from Sentinel-2 satellite imagery at 10 m detail. It is a measurement of that circle, not of the whole municipality — which is exactly what makes the two comparable, since city boundaries are drawn to wildly different rules around the world. Şaḩam leads here at 9.1%.
Air quality index
The live US EPA index, computed from current pollutant concentrations — ground stations where a city has them nearby, and a model everywhere else. It moves hour to hour, so this is a snapshot rather than a verdict on either place: Al Ain City reads 108 (unhealthy for sensitive groups) and Şaḩam reads 83 (moderate) right now.
Frequently asked
Al Ain City and Şaḩam, answered
Which has more trees, Al Ain City or Şaḩam?
Şaḩam, with roughly 16,152 trees inside its 2 km radius against 7,226. Tree cover tells a slightly different story from raw count: Şaḩam has the denser canopy at 9.1%.
Which has better air quality, Al Ain City or Şaḩam?
Şaḩam right now, at AQI 83 against 108 — a gap of 25 points. This is a live reading rather than an annual average, so it can reverse within a day.
How many more trees does each city need?
Al Ain City needs about 102,730 more to reach its canopy target, and Şaḩam about 37,097. The target is the same share of ground for both, so the figures are directly comparable.
Are these two measured the same way?
Yes — that is the point of the page. Identical radius, identical satellite source at 10 m detail, and the same US EPA index for air. Nothing here is adjusted for population, city limits or climate, so the numbers describe the same-sized circle of ground in each place.
Keep going
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