Aix-en-Provence vs Monza
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.
Monza has more tree cover — 48.6% against 42.2%.
Aix-en-Provence has cleaner air right now — AQI 51 against 105.
- Tree cover gap
- 6.4 points
- Monza is ahead.
- Air quality gap
- 54 AQI
- Aix-en-Provence is cleaner.
- Trees between them
- 20.1K
- Monza has more standing.
France
Italy
Tree cover
Share of the 2 km radius under canopy.
42.2%
48.6%
Air quality index
US EPA index, live, with its band. Lower is better.
51 · Moderate
105 · Unhealthy for sensitive groups
Trees standing
Estimated from the measured canopy area.
133K
153K
Trees still needed
To reach the same canopy target. Fewer is better.
0
0
CO₂ absorbed each year
By the trees already standing.
2.9M kg
3.4M 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 read from nearby ground stations.
PM2.5
Fine particles, the pollutant that usually sets the index.
6 µg/m³
15.7 µg/m³
Nitrogen dioxide
Mostly traffic and combustion.
48.2 µg/m³
18.1 µg/m³
Ozone
Forms in sunlight; peaks on hot, still afternoons.
108.6 µg/m³
141.4 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.
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. Monza leads here at 48.6%.
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: Aix-en-Provence reads 51 (moderate) and Monza reads 105 (unhealthy for sensitive groups) right now.
Frequently asked
Aix-en-Provence and Monza, answered
Which has more trees, Aix-en-Provence or Monza?
Monza, with roughly 152,681 trees inside its 2 km radius against 132,575. Tree cover tells a slightly different story from raw count: Monza has the denser canopy at 48.6%.
Which has better air quality, Aix-en-Provence or Monza?
Aix-en-Provence right now, at AQI 51 against 105 — a gap of 54 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?
Aix-en-Provence needs about 0 more to reach its canopy target, and Monza about 0. 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
Other comparisons nearby
- Aix-en-Provence vs Marseille14% tree cover · AQI 80Compare
- Aix-en-Provence vs Toulon23% tree cover · AQI 31Compare
- Aix-en-Provence vs Nîmes36% tree cover · AQI 50Compare
- Aix-en-Provence vs Montpellier34% tree cover · AQI 42Compare
- Aix-en-Provence vs Milan19% tree cover · AQI 84Compare
- Aix-en-Provence vs Bergamo40% tree cover · AQI 71Compare
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