Air quality in Semarang today
Indonesia · Updated Friday 18:00 (local time) · Model data from the Copernicus Atmosphere Monitoring Service
Moderate European AQI
Sensitive people may want to take it easier outdoors.
Pollutants right now
| Pollutant | Value | Level |
|---|---|---|
| PM2.5 | 21 µg/m³ | Moderate |
| PM10 | 25 µg/m³ | Fair |
| NO₂ | 13 µg/m³ | Good |
| O₃ | 113 µg/m³ | Moderate |
The pollutant that matters most in Semarang right now is O₃.
Forecast: next 24 hours
Over the next 24 hours the air in Semarang is expected to be worst around Sat 14:00 (AQI 202, extremely poor). The cleanest hour is expected around Fri 19:00.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Fri 19:00 | 42 | Moderate | 19 |
| Fri 22:00 | 46 | Moderate | 25 |
| Sat 01:00 | 49 | Moderate | 31 |
| Sat 04:00 | 55 | Moderate | 41 |
| Sat 07:00 | 63 | Poor | 55 |
| Sat 10:00 | 87 | Very poor | 49 |
| Sat 13:00 | 190 | Extremely poor | 60 |
| Sat 16:00 | 185 | Extremely poor | 79 |
The last 30 days
Over the last 30 days the average daily AQI in Semarang was 78, with 23 day(s) rated poor or worse. The cleanest day was 30 Aug, the most polluted 4 Sept.
Questions and answers
- Is the air in Semarang good today?
- Right now the European Air Quality Index in Semarang is 53, which is moderate. Sensitive people may want to take it easier outdoors.
- What pollutes the air in Semarang?
- At the moment O₃ contributes most to the air quality index in Semarang. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Semarang be cleanest?
- Over the next 24 hours the air in Semarang is expected to be worst around Sat 14:00 (AQI 202, extremely poor). The cleanest hour is expected around Fri 19:00.
- Where does this data come from?
- Wheezair shows model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), served by Open-Meteo: about 11 km resolution in Europe and 40 km elsewhere, updated daily. They are not station measurements, so a busy street can be worse than its city's value.