Worst air pollution Ernest Hemingway Home - Key West, today and tomorrow
Today (30 August): Air quality in Ernest Hemingway Home is poor. AQI and PM10 are poor; PM2.5 is moderate; O3 is fair; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (PM10: 67.4/100).
Tomorrow (31 August 2026): Air quality in Ernest Hemingway Home is poor. O3 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 65.2/100). 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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Key West's Ernest Hemingway Home air quality benefits from the historic Old Town Key West position with the Atlantic and Gulf trade winds providing reliable dual-coast maritime ventilation. Vehicle traffic on Whitehead Street contributes modest local sources, while the property's tropical garden canopy provides natural filtration and the outstanding trade wind exposure generally maintains the Hemingway Home among Key West's more pleasantly ventilated historic sites throughout most of the year.
Today - 30 August | Pollution peaks at 23:00
AQI:
Poor
67.4/100
PM2.5 (fine particles):
Moderate
51.4/100
PM10 (coarse particles):
Poor
67.4/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Fair
24.5/100
SO2 (sulfur dioxide):
Good
3.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
10.2/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 00:00
AQI:
Poor
65.2/100
PM2.5 (fine particles):
Moderate
50.4/100
PM10 (coarse particles):
Poor
65.2/100
NO2 (nitrogen dioxide):
Good
0.7/100
O3 (ozone):
Good
19.8/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.0/100
PM1 (ultrafine particles):
Good
9.6/100
Other Landmarks in Key West
Frequently Asked Questions
Is air quality bad in Ernest Hemingway Home right now?
On 30 August 2026, overall air quality in Ernest Hemingway Home is poor. AQI is the main air quality indicator at 67.4/100. Pollution peaks around 11:00 PM (PM10: 67.4/100).
Will air quality be worse tomorrow in Ernest Hemingway Home?
On 31 August 2026, air quality conditions in Ernest Hemingway Home will be similar to today, with AQI forecast at poor at 65.2/100. Pollution peaks around 12:00 AM (PM10: 65.2/100).
When is air pollution at its worst in Ernest Hemingway Home?
Conditions at Ernest Hemingway Home vary noticeably across the seasons: daily summer storms tend to scrub the air clean before pollution can build up, but wildfire and prescribed-burn smoke are most common in the drier months from autumn through spring. Inland areas tend to see more smoke buildup than locations closer to the coast.
Are air quality levels in Ernest Hemingway Home 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: 30 August 2026 at 20:26 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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