Air quality in Hạ Long today
Vietnam · Updated Friday 07:00 (local time) · Model data from the Copernicus Atmosphere Monitoring Service
Fair European AQI
Fine for almost everyone.
Pollutants right now
| Pollutant | Value | Level |
|---|---|---|
| PM2.5 | 7 µg/m³ | Good |
| PM10 | 9 µg/m³ | Good |
| NO₂ | 4 µg/m³ | Good |
| O₃ | 89 µg/m³ | Fair |
The pollutant that matters most in Hạ Long right now is O₃.
Forecast: next 24 hours
Over the next 24 hours the air in Hạ Long is expected to be worst around Fri 14:00 (AQI 59, moderate). The cleanest hour is expected around Fri 23:00.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Fri 08:00 | 37 | Fair | 7 |
| Fri 11:00 | 51 | Moderate | 7 |
| Fri 14:00 | 59 | Moderate | 9 |
| Fri 17:00 | 52 | Moderate | 9 |
| Fri 20:00 | 38 | Fair | 10 |
| Fri 23:00 | 35 | Fair | 11 |
| Sat 02:00 | 39 | Fair | 15 |
| Sat 05:00 | 38 | Fair | 14 |
The last 30 days
Over the last 30 days the average daily AQI in Hạ Long was 56, with 12 day(s) rated poor or worse. The cleanest day was 14 Sept, the most polluted 21 Sept.
Questions and answers
- Is the air in Hạ Long good today?
- Right now the European Air Quality Index in Hạ Long is 35, which is fair. Fine for almost everyone.
- What pollutes the air in Hạ Long?
- At the moment O₃ contributes most to the air quality index in Hạ Long. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Hạ Long be cleanest?
- Over the next 24 hours the air in Hạ Long is expected to be worst around Fri 14:00 (AQI 59, moderate). The cleanest hour is expected around Fri 23:00.
- 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.