Worst air pollution Salina Cruz, today and tomorrow
Today (16 July): Air quality in Salina Cruz is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 25.2/100).
Tomorrow (17 July 2026): Air quality in Salina Cruz is fair. All pollutants stay as today. Pollution peaks around 5:00 AM (O3: 22.2/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Salina Cruz's air quality reflects the Oaxacan Pacific coastal position on the Gulf of Tehuantepec, with vehicle traffic on surrounding roads and the PEMEX refinery, port, and industrial corridor generating elevated industrial SO₂ and VOCs. The extraordinary Tehuano wind — one of Mexico's strongest regional winds — provides spectacular periodic ventilation across the Isthmus, while the PEMEX refinery's industrial scale represents Salina Cruz's most distinctive local air quality contribution throughout the year.
Today - 16 July | Pollution peaks at 09:00
AQI:
Fair
25.2/100
PM2.5 (fine particles):
Good
13.0/100
PM10 (coarse particles):
Good
16.1/100
NO2 (nitrogen dioxide):
Good
4.4/100
O3 (ozone):
Fair
25.2/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.8/100
PM1 (ultrafine particles):
Good
8.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 05:00
AQI:
Fair
22.2/100
PM2.5 (fine particles):
Good
13.1/100
PM10 (coarse particles):
Good
17.9/100
NO2 (nitrogen dioxide):
Good
3.4/100
O3 (ozone):
Fair
22.2/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.6/100
PM1 (ultrafine particles):
Good
5.2/100
Frequently Asked Questions
Is air quality bad in Salina Cruz right now?
On 16 July 2026, overall air quality in Salina Cruz is fair. AQI is the main air quality indicator at 25.2/100. Pollution peaks around 9:00 AM (O3: 25.2/100).
Will air quality be worse tomorrow in Salina Cruz?
On 17 July 2026, air quality conditions in Salina Cruz will be similar to today, with AQI forecast at fair at 22.2/100. Pollution peaks around 5:00 AM (O3: 22.2/100).
When is air pollution at its worst in Salina Cruz?
In Salina Cruz, traffic emissions along with steel, cement, and chemical production are the main local sources, with conditions worsening when dry, windy weather picks up. These wind events can carry dust in from the surrounding arid landscape. Maritime airflow normally ventilates the area well, though calmer spells let levels rise.
Are air quality levels in Salina Cruz 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