PM2.5 observation snapshot
9.9 µg/m³ · 48 sensors
Prepared:
Values refer to the stated observation times. Open the map for the latest readings.
Open mapUlm Air Quality — PM2.5 & Sensors
Germany
Sensors and observation times
| Sensor | PM2.5 (µg/m³) | UTC |
|---|---|---|
| SC #73940 | 8.2 | |
| SC #1010 | 16.1 | |
| SC #34327 | 0.9 | |
| SC #27642 | 20.6 | |
| SC #72388 | 5.9 | |
| SC #96844 | 3.3 | |
| SC #87036 | 0.1 | |
| SC #28070 | 7.6 | |
| SC #20034 | 4.1 | |
| SC #12956 | 9.3 | |
| SC #68410 | 10.2 | |
| SC #28443 | 8.9 | |
| SC #20040 | 5.3 | |
| SC #25988 | 18.2 | |
| SC #20970 | 31.5 | |
| SC #18013 | 5.7 | |
| SC #8040 | 7.3 | |
| SC #45436 | 22.2 | |
| SC #5133 | 8.2 | |
| SC #93191 | 6.6 | |
| SC #11042 | 5.3 | |
| SC #4738 | 7.1 | |
| SC #20093 | 9.2 | |
| SC #1701 | 0.1 | |
| SC #45472 | 1.0 | |
| SC #1380 | 15.0 | |
| SC #29930 | 13.3 | |
| SC #35462 | 4.6 | |
| SC #1507 | 15.1 | |
| SC #1402 | 0.1 | |
| SC #21260 | 0.0 | |
| SC #7519 | 0.8 | |
| SC #21114 | 11.8 | |
| SC #63197 | 8.2 | |
| SC #39140 | 13.2 | |
| SC #75806 | 35.5 | |
| SC #79438 | 9.7 | |
| SC #8895 | 9.0 | |
| SC #29246 | 14.4 | |
| SC #2474 | 9.9 | |
| SC #47960 | 11.1 | |
| SC #95858 | 10.1 | |
| SC #579 | 10.4 | |
| SC #78997 | 12.5 | |
| SC #8044 | 10.1 | |
| SC #53521 | 35.9 | |
| SC #22502 | 0.1 | |
| SC #90908 | 1.4 |
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