Note: Hover over datapoints on the graph for more information.

Daily AQI Table

Pollutant	08/20/25	08/21/25	08/22/25	08/23/25	08/24/25
Ozone	36	35	38	40	35
PM2.5	46	47	50	51	48

Synopsis and Discussion

Good air quality is being observed across the Triad today as Hurricane Erin passes by offshore. A cold front will drift into the area but not provide an appreciable change of air mass. A stronger cold front will arrive early next week, bringing with it much lower dew points and cooler temperatures. In the interim, ozone concentrations are expected to remain in the mid to perhaps upper Code Green range. Particle pollution is expected to build slightly and may reach the lower Code Yellow range by Saturday due to a weak high pressure system that will allow for some stagnation. Increased rain chances on Sunday will help push particle pollution levels downward to the Code Green range once again. (Greg Perrotte / perrotgt@forsyth.cc)

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Air Monitoring Data

The Forsyth County Office of Environmental Assistance and Protection is making data available from the county's air monitoring network as a public service. These data represent the hourly data set from all of the sites within this network. Data from Triad sites outside of Forsyth County are collected by the North Carolina Division of Air Quality.

Reports

• Current Hourly Data(pdf)(txt)
• Yesterday's Data & Calibration Report(pdf)(txt)
• Simple Key for Reading Data File