Worst air pollution Queen Mary - Long Beach, today and tomorrow

Today (20 September): Air quality in Queen Mary is moderate. AQI and PM10 are moderate; PM2.5 is fair; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (PM10: 51.9/100).
Tomorrow (21 September 2026): Air quality in Queen Mary is moderate. O3 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 45.0/100). 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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Long Beach's citywide air quality pattern extends to Queen Mary, a historic ocean liner permanently docked at the harbor, without a notably different local signature. Any local variation tends to be minor compared with the seasonal swings seen across the wider city.

Today - 20 September | Pollution peaks at 10:00

AQI:

Moderate

51.9/100

PM2.5 (fine particles):

Fair

38.7/100

PM10 (coarse particles):

Moderate

51.9/100

NO2 (nitrogen dioxide):

Good

8.3/100

O3 (ozone):

Good

19.7/100

SO2 (sulfur dioxide):

Good

0.2/100

CO (carbon monoxide):

Good

0.4/100

HCHO (formaldehyde):

Good

1.0/100

PM1 (ultrafine particles):

Good

2.3/100

Levels show the poorest local air quality during the day

Tomorrow - 21 September | Pollution peaks at 00:00

AQI:

Moderate

45.0/100

PM2.5 (fine particles):

Fair

33.1/100

PM10 (coarse particles):

Moderate

45.0/100

NO2 (nitrogen dioxide):

Good

4.3/100

O3 (ozone):

Fair

22.9/100

SO2 (sulfur dioxide):

Good

0.6/100

CO (carbon monoxide):

Good

0.5/100

HCHO (formaldehyde):

Good

1.7/100

PM1 (ultrafine particles):

Good

2.9/100

Other Landmarks in Long Beach

Frequently Asked Questions

Is air quality bad in Queen Mary right now?

On 20 September 2026, overall air quality in Queen Mary is moderate. AQI is the main air quality indicator at 51.9/100. Pollution peaks around 10:00 AM (PM10: 51.9/100).

Will air quality be worse tomorrow in Queen Mary?

On 21 September 2026, air quality conditions in Queen Mary will be similar to today, with AQI forecast at moderate at 45.0/100. Pollution peaks around 12:00 AM (PM10: 45.0/100).

When is air pollution at its worst in Queen Mary?

Queen Mary's air quality follows a clear seasonal pattern. Typically, winter rains provide the only real relief from an otherwise persistent haze, while summer and early autumn bring the highest ozone levels, and wildfire smoke can spike particulate readings sharply from August through October. The mountains ringing the basin can trap pollution close to the ground for days when winds are calm.

Are air quality levels in Queen Mary 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.

Why doesn’t the forecast always reflect wildfire impacts?

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.

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Data provided by Airmine — Last update: 20 September 2026 at 20:27 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.

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.

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