Usually below 5µg/m³, spiking only when some of the neighbors starts their wood-fired heating, last night there were highs above 100µg/m³, caused by particles having their origin in canadian wildfires. The station is located near Salzburg, Austria. [image: 2025-06-11 08_01_30-Das Wetter in AT, Salzburg, Hallein, Rif - PM.png] Visiblity is also impaired significantly: https://www.foto-webcam.eu/webcam/zeppezauerhaus/2025/06/11/0750
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