Worst air pollution Town of North Hempstead, today and tomorrow

On 9 August 2026, overall air quality in Town of North Hempstead is fair. AQI is the main air quality indicator at 38.1/100. Pollution peaks around 11:00 AM (O3: 38.1/100).

On 10 August 2026, air quality conditions in Town of North Hempstead will be similar to today, with AQI forecast at fair at 36.1/100. Pollution peaks around 11:00 AM (O3: 36.1/100).

The colder months typically bring the heaviest particulate levels of the year, as reduced winter air movement lets heating emissions and wood smoke build up locally. As the weather warms, ozone tends to overtake other concerns in this area, as heat and sunlight drive photochemical smog, occasionally worsened by drifting wildfire smoke. The shoulder seasons, spring and fall, usually offer the year's best air quality thanks to milder, breezier conditions.

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.

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.