Harkingen A1, Switzerland

Monitoring Station · Olten, Switzerland
78
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
44 6am
44
43
43 9am
26
14
14 12pm
14
0
0 3pm
0
14
14 6pm
—
—
— 9pm
—
—
— 12am
—
—
— 3am
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CAMS model adj -40
84
84
83
83
66
54
54
54
34
34
34
54
54

Air Quality Trend (24h)

PM2.524.9 µg/m³ ×1.7 WHO
Moderate
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Nearby Monitoring Stations

40
Kilbig
17.5 km PM2.5: 9.5 µg/m³
21
switzerland-zwingen-reckholderstrasse
25.5 km PM2.5: 5.1 µg/m³

Nearby Cities

35 Olten 35 Aarau 31 Solothurn 23 Reinach 24 Muttenz 26 Rheinfelden 31 Bad Säckingen 31 Burgdorf 24 Riehen

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-17T09:07 UTC.