Worst air pollution Hechi, today and tomorrow
Today (16 July): Air quality in Hechi is fair. PM2.5 and NO2 are fair; AQI, O3, SO2, and PM1 are medium; PM10, CO, and HCHO are good. Pollution peaks around 12:00 PM (O3: 49.4/100).
Tomorrow (17 July 2026): Air quality in Hechi is fair. AQI worsens to fair; PM2.5 decreases to good; O3 increases to fair; SO2 increases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 37.1/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Hechi's air quality reflects the Guangxi northern karst highland's Longjiang River valley position, with vehicle traffic on surrounding roads and the lead, zinc, and nonferrous metal mining corridor generating elevated heavy metal PM2.5. The surrounding karst mountain topography creates distinctive local wind patterns, while the nonferrous metal mining operations represent Hechi's most industrially distinctive air quality contribution and the valley's topographic variation creates seasonal concentration episodes throughout the year.
Today - 16 July | Pollution peaks at 12:00
AQI:
Medium
49.4/100
PM2.5 (fine particles):
Fair
36.3/100
PM10 (coarse particles):
Good
10.2/100
NO2 (nitrogen dioxide):
Fair
33.7/100
O3 (ozone):
Medium
49.4/100
SO2 (sulfur dioxide):
Medium
42.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.5/100
PM1 (ultrafine particles):
Medium
41.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 17:00
AQI:
Fair
37.1/100
PM2.5 (fine particles):
Good
12.6/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Fair
33.4/100
O3 (ozone):
Fair
37.1/100
SO2 (sulfur dioxide):
Fair
26.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.8/100
PM1 (ultrafine particles):
Good
17.8/100
Frequently Asked Questions
Is air quality bad in Hechi right now?
On 16 July 2026, overall air quality in Hechi is fair. PM2.5 is the main pollutant at 36.3/100. Pollution peaks around 12:00 PM (O3: 49.4/100).
Will air quality be worse tomorrow in Hechi?
On 17 July 2026, air quality conditions in Hechi will be similar to today, with AQI forecast at fair at 37.1/100. Pollution peaks around 5:00 PM (O3: 37.1/100).
When is air pollution at its worst in Hechi?
In Hechi, road traffic and quarrying activity are the main local sources, with conditions worsening when dry spells bring strong winds. These wind events can carry dust in from the surrounding arid landscape. Such events are most common in the drier shoulder seasons.
Are air quality levels in Hechi based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app