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Airleaf

Balombo vs Masina

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.

Masina has more tree cover — 23.9% against 18.8%.

Balombo has cleaner air right now — AQI 76 against 202.

Tree cover gap
5.1 points
Masina is ahead.
Air quality gap
126 AQI
Balombo is cleaner.
Trees between them
16.0K
Masina has more standing.
Balombo

Angola

Masina

Democratic Republic of the Congo

Tree cover

Share of the 2 km radius under canopy.

18.8%

23.9%

Air quality index

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

76 · Moderate

202 · Very unhealthy

Trees standing

Estimated from the measured canopy area.

59.1K

75.1K

Trees still needed

To reach the same canopy target. Fewer is better.

35.2K

66.3K

CO₂ absorbed each year

By the trees already standing.

1.3M kg

1.7M 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. Masina is read from nearby ground stations and Balombo is modelled — worth knowing, since the two are not quite like for like.

PM2.5

Fine particles, the pollutant that usually sets the index.

23.8 µg/m³

151.5 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.

BalomboMasina· daily US EPA index, last 7 days
07515023 Sept26 Sept29 Sept
Daily air quality index for Balombo and Masina
DayBalomboMasina
23 Sept66119
24 Sept57148
25 Sept78137
26 Sept77116
27 Sept7793
28 Sept8191
29 Sept7693

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. Masina leads here at 23.9%.

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: Balombo reads 76 (moderate) and Masina reads 202 (very unhealthy) right now.

Frequently asked

Balombo and Masina, answered

Which has more trees, Balombo or Masina?

Masina, with roughly 75,084 trees inside its 2 km radius against 59,062. Tree cover tells a slightly different story from raw count: Masina has the denser canopy at 23.9%.

Which has better air quality, Balombo or Masina?

Balombo right now, at AQI 76 against 202 — a gap of 126 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?

Balombo needs about 35,186 more to reach its canopy target, and Masina about 66,288. 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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