Worst air pollution Dalian, today and tomorrow
Today (16 July): Air quality in Dalian is fair. PM2.5 and O3 are fair; AQI, NO2, and PM1 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 8:00 PM (NO2: 49.5/100).
Tomorrow (17 July 2026): Air quality in Dalian is fair. O3 decreases to good; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 47.5/100). 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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Dalian's air quality benefits from its exceptional Liaodong Peninsula Yellow Sea and Bohai Sea dual-coastal position, with consistent Yellow Sea and Bohai breezes providing reliable maritime ventilation. Vehicle traffic on surrounding expressways and the port, petrochemical, and shipbuilding corridor contribute local sources, while the outstanding dual-coast maritime exposure generally maintains Dalian among Northeast China's more moderately ventilated coastal provincial cities throughout most of the year.
Today - 16 July | Pollution peaks at 20:00
AQI:
Medium
49.5/100
PM2.5 (fine particles):
Fair
37.6/100
PM10 (coarse particles):
Good
12.0/100
NO2 (nitrogen dioxide):
Medium
49.5/100
O3 (ozone):
Fair
27.4/100
SO2 (sulfur dioxide):
Good
13.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Medium
40.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Medium
47.5/100
PM2.5 (fine particles):
Fair
26.7/100
PM10 (coarse particles):
Good
9.0/100
NO2 (nitrogen dioxide):
Medium
47.5/100
O3 (ozone):
Good
9.8/100
SO2 (sulfur dioxide):
Good
16.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Fair
29.9/100
Frequently Asked Questions
Is air quality bad in Dalian right now?
On 16 July 2026, overall air quality in Dalian is fair. PM2.5 is the main pollutant at 37.6/100. Pollution peaks around 8:00 PM (NO2: 49.5/100).
Will air quality be worse tomorrow in Dalian?
On 17 July 2026, air quality conditions in Dalian will be similar to today, with PM1 forecast at fair at 29.9/100. Pollution peaks around 11:00 PM (NO2: 47.5/100).
When is air pollution at its worst in Dalian?
Pollution in Dalian typically rises when traffic on the surrounding roads, steel, cement, and chemical production, together with shipbuilding and port operations combine, especially once onshore breezes fall calm. Sea breezes typically keep conditions in check, except during still weather. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Dalian 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