43R401 - NAMUR

Series: Unverified Air, no. 19

Day: 21 October 2026

Place: Namur, Belgium

NO₂ (red): 18.0 µg/m³, the day’s highest hour, 06:00 UTC

O₃ (blue): 78.5 µg/m³, the day’s highest hour, 19:00 UTC

Wind: from 169°, 8 km/h, at 06:00 UTC

Station code: BETR401

Station type: urban background

Network: Wallonia

Inlet height: 3 m

Coordinates: 50.46243 N, 4.86526 E

Buildings: 260, 1.9–52.8 m high

Heights: 100 % measured, from the official building register (Belgium, Wallonie) via EUBUCCO

Lines: 6,405 black, 594 red, 2,122 blue

Line length: 87 m in total

Made: 22 October 2026, 09:02:44 UTC, in 116 s, on the gallery’s server in Helsinki, Finland

Size: A3, 297 × 420 mm (plotted); 2376 × 3360 px (this image)