Particulate Matter PM2.5
*The Pike County area was under the influence of eastern Kentucky wildfires. This has caused elevated readings.
The protective limit for PM2.5 is the National Ambient Air Quality Standard of 35 micrograms per cubic meter (35 µg/m3). This standard was set by the United States Environmental Protection Agency as a national standard that is protective for the public and the environment after scientific studies as well as review and comment from members of the public.