PM2.5 observation snapshot
0.6 µg/m³ · 5 sensors
Prepared:
Values refer to the stated observation times. Open the map for the latest readings.
Open mapWinterthur Air Quality — PM2.5 & Sensors
Switzerland
Sensors and observation times
| Sensor | PM2.5 (µg/m³) | UTC |
|---|---|---|
| Friedheimstr, Winterthur | 2.2 | |
| Technikum/Turmhaldenstrasse | 0.7 | |
| Bühlackerweg | 0.0 | |
| Hegi | 0.2 | |
| St Gallerstrasse | 0.0 |
Methodology and limitations
The value is the arithmetic mean of the latest available individual sensor observations, each at most one hour old when the snapshot was prepared. It is neither a 24-hour average nor an AQI index.
Duplicate sensor records do not increase their weight. Missing, negative and PM2.5 readings above 500 µg/m³ are excluded under the Atmy quality rule. Pilot cities require at least three qualifying sensors. Sensor count does not guarantee uniform coverage or laboratory accuracy.
Source: public Atmy monitoring data. Data terms