Belgrade-Stari grad

Series: Unverified Air, no. 22

Day: 24 October 2026

Place: Stari Grad Urban Municipality, Serbia

NO₂ (red): 32.5 µg/m³, the day’s highest hour, 09:00 UTC

O₃ (blue): 50.5 µg/m³, the day’s highest hour, 15:00 UTC

Wind: from 129°, 6 km/h, at 09:00 UTC

Station code: RS0032A

Station type: urban background

Network: Serbian national AQ network

Inlet height: 3.5 m

Instruments: O₃ API400E; NO₂ API200E

Coordinates: 44.82112 N, 20.45911 E

Buildings: 70, 4.1–32 m high

Heights: 96 % measured, from OpenStreetMap

Lines: 2,435 black, 1,550 red, 665 blue

Line length: 83 m in total

Made: 25 October 2026, 09:03:35 UTC, in 202 s, on the gallery’s server in Helsinki, Finland

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