Atmy

Atmy is a live map and open data on air quality (PM2.5) from citizen, experimental and government sensors. City values are approximate, follow an open methodology and are refreshed every 15 minutes.

PM2.5 now in the cities

Snapshot: October 27, 2026 at 08:00 UTC

Sofia, Bulgaria: 4.5 µg/m³ (good)
Stuttgart, Germany: 4.2 µg/m³ (good)
Berlin, Germany: 5.0 µg/m³ (good)
Hamburg, Germany: 6.6 µg/m³ (good)
Munich, Germany: 2.4 µg/m³ (good)
Almaty, Kazakhstan: 49.4 µg/m³ (unhealthy for sensitive groups)
Warsaw, Poland: 20.0 µg/m³ (moderate)
Eindhoven, Netherlands: 1.6 µg/m³ (good)
Cologne, Germany: 3.3 µg/m³ (good)
Brussels, Belgium: 4.5 µg/m³ (good)
Dresden, Germany: 3.6 µg/m³ (good)
Amersfoort, Netherlands: 2.1 µg/m³ (good)
Groningen, Netherlands: 8.0 µg/m³ (good)
Wrocław, Poland: 9.9 µg/m³ (moderate)
Reutlingen, Germany: 3.9 µg/m³ (good)
Winterthur, Switzerland: 3.5 µg/m³ (good)
Vienna, Austria: 6.4 µg/m³ (good)
Bonn, Germany: 2.7 µg/m³ (good)
Frankfurt, Germany: 4.7 µg/m³ (good)
Hanover, Germany: 3.1 µg/m³ (good)

All cities · Methodology · API and open data

We aggregate air quality data from multiple sources, including citizen-operated sensors, experimental equipment, and government monitoring networks.

Using our own system, we assess the quality of incoming data; however, due to differences in sources and network density, the information should be considered approximate.

We publish this data to raise awareness about air quality and make environmental information more accessible.

Atmy

PM2.5 now in the cities

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Atmy

PM2.5 now in the cities

Live Air Quality Map

Upcoming days forecast

Hotspot Types

Layers

Display

Theme