What is the air quality like in Thornton?
Thornton has an average AQI of 54, which falls in the "Moderate" category. About 54% of days have Good air quality, 34% are Moderate, and 10% are Unhealthy for Sensitive Groups. The primary pollutant is Ozone.
What is the main pollutant in Thornton?
The primary pollutant in Thornton is Ozone. The city's average PM2.5 level is 9 μg/m³ (below the EPA annual standard of 12 μg/m³). Average ozone levels are 48 ppb. Major pollution sources include vehicles, oil/gas wells, denver metro.
Is Thornton affected by wildfire smoke?
Thornton has a moderate wildfire risk rating. Occasional wildfire smoke events may temporarily degrade air quality.
How many good air quality days does Thornton have?
Approximately 54% of days in Thornton have Good air quality (AQI 0-50). Residents experience Good air quality about half the time, with other days being Moderate or worse.
When is pollen season in Thornton's state (CO)?
Pollen seasons in CO include: Weed Pollen (July–October, High severity); Mold Spores (June–September, Low severity); Tree Pollen (March–June, Moderate severity); Grass Pollen (May–July, Moderate severity). Allergy sufferers should monitor pollen counts during these periods and consider staying indoors on high-pollen days, especially during morning hours when counts peak.