San Miguel de Tucumán vs Tarija

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.

Tarija has more tree cover — 12.0% against 11.7%.

Tarija has cleaner air right now — AQI 34 against 96.

Tree cover gap: 0.3 points; Tarija is ahead.
Air quality gap: 62 AQI; Tarija is cleaner.
Trees between them: 942; Tarija has more standing.

San Miguel de Tucumán

Argentina

Tarija

Bolivia

Tree cover

Share of the 2 km radius under canopy.

11.7%

12.0%

Air quality index

US EPA index, live, with its band. Lower is better.

96 · Moderate

34 · Good

Trees standing

Estimated from the measured canopy area.

36.8K

37.7K

Trees still needed

To reach the same canopy target. Fewer is better.

57.5K

56.5K

CO₂ absorbed each year

By the trees already standing.

809K kg

829K kg

The full San Miguel de Tucumán report36,757 trees, measured Sentinel-2 L2A (ESA Copernicus) via Earth Search The full Tarija report37,699 trees, measured Sentinel-2 L2A (ESA Copernicus) via Earth Search

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. San Miguel de Tucumán is read from nearby ground stations and Tarija is modelled — worth knowing, since the two are not quite like for like.

PM2.5

Fine particles, the pollutant that usually sets the index.

33.7 µg/m³

7.3 µg/m³

PM10

Coarser particles — dust, pollen, road grit.

37.9 µg/m³

7.4 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.

San Miguel de TucumánTarija· daily US EPA index, last 7 days

Daily air quality index for San Miguel de Tucumán and Tarija
Day	San Miguel de Tucumán	Tarija
22 Sept	42	39
23 Sept	34	42
24 Sept	45	30
25 Sept	57	31
26 Sept	58	37
27 Sept	64	34
28 Sept	51	35

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. Tarija leads here at 12.0%.

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: San Miguel de Tucumán reads 96 (moderate) and Tarija reads 34 (good) right now.

Frequently asked

San Miguel de Tucumán and Tarija, answered

Which has more trees, San Miguel de Tucumán or Tarija?

Tarija, with roughly 37,699 trees inside its 2 km radius against 36,757. Tree cover tells a slightly different story from raw count: Tarija has the denser canopy at 12.0%.

Which has better air quality, San Miguel de Tucumán or Tarija?

Tarija right now, at AQI 34 against 96 — a gap of 62 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?

San Miguel de Tucumán needs about 57,491 more to reach its canopy target, and Tarija about 56,549. 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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