Particulate Matter PM10
*The Pike County area was under the influence of eastern Kentucky wildfires. This has caused elevated readings.
The protective limit for PM10 is the National Ambient Air Quality Standard of 150 micrograms per cubic meter (150 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.