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 7am
43
43
26 10am
14
14
14 1pm
0
0
0 4pm
14
14
26 7pm
26
—
— 10pm
—
—
— 1am
—
—
— 4am
—
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CAMS model adj -40
84
83
83
66
54
54
54
34
34
34
54
54
66
66

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

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

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-17T10:25 UTC.