As Suwayq vs Ras Al Khaimah
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.
Ras Al Khaimah has more tree cover — 21.8% against 4.7%.
As Suwayq has cleaner air right now — AQI 91 against 186.
- Tree cover gap
- 17.1 points
- Ras Al Khaimah is ahead.
- Air quality gap
- 95 AQI
- As Suwayq is cleaner.
- Trees between them
- 31.4K
- Ras Al Khaimah has more standing.
Oman
United Arab Emirates
Tree cover
Share of the 2 km radius under canopy.
4.7%
21.8%
Air quality index
US EPA index, live, with its band. Lower is better.
91 · Moderate
186 · Unhealthy
Trees standing
Estimated from the measured canopy area.
8.4K
39.9K
Trees still needed
To reach the same canopy target. Fewer is better.
45.5K
33.3K
CO₂ absorbed each year
By the trees already standing.
186K kg
877K 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. Ras Al Khaimah is read from nearby ground stations and As Suwayq is modelled — worth knowing, since the two are not quite like for like.
PM2.5
Fine particles, the pollutant that usually sets the index.
31 µg/m³
123.6 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 | As Suwayq | Ras Al Khaimah |
|---|---|---|
| 22 Sept | 77 | 127 |
| 23 Sept | 88 | 140 |
| 24 Sept | 101 | 123 |
| 25 Sept | 96 | 137 |
| 26 Sept | 96 | 150 |
| 27 Sept | 94 | 146 |
| 28 Sept | 91 | 157 |
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. Ras Al Khaimah leads here at 21.8%.
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: As Suwayq reads 91 (moderate) and Ras Al Khaimah reads 186 (unhealthy) right now.
Frequently asked
As Suwayq and Ras Al Khaimah, answered
Which has more trees, As Suwayq or Ras Al Khaimah?
Ras Al Khaimah, with roughly 39,859 trees inside its 2 km radius against 8,446. Tree cover tells a slightly different story from raw count: Ras Al Khaimah has the denser canopy at 21.8%.
Which has better air quality, As Suwayq or Ras Al Khaimah?
As Suwayq right now, at AQI 91 against 186 — a gap of 95 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?
As Suwayq needs about 45,464 more to reach its canopy target, and Ras Al Khaimah about 33,277. 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.
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