What is the air quality trend in Frauenfeld?

Over the past 13 days, Frauenfeld had an average AQI of 27 based on station measurements. The worst day was with AQI .

How is Frauenfeld air quality measured?

Air quality in Frauenfeld is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Frauenfeld, Switzerland

Name: Frauenfeld Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Frauenfeld, Switzerland.

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

Air Quality Index Trend

249h

PM2.5 Trend

249h · 4 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-14	23	4–57	5.6 µg/m³	6.2	24h	4
2026-04-13	30	6–64	7.7 µg/m³	8.5	16h	3
2026-04-12	12	4–26	2.9 µg/m³	3.2	17h	2
2026-04-11	55	10–95	17.0 µg/m³	18.4	24h	4
2026-04-10	38	14–76	9.8 µg/m³	10.3	24h	4
2026-04-09	16	6–35	3.9 µg/m³	4.1	15h	3
2026-04-08	17	11–25	4.0 µg/m³	4.4	9h	4
2026-04-07	17	6–30	4.0 µg/m³	4.3	24h	3
2026-04-06	19	7–58	4.7 µg/m³	5.0	17h	2
2026-04-04	29	8–164	10.6 µg/m³	11.6	14h	3
2026-04-03	29	7–66	7.3 µg/m³	8.0	24h	4
2026-04-02	44	22–65	11.3 µg/m³	12.3	20h	4
2026-04-01	26	10–74	6.7 µg/m³	7.3	21h	4

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