The NOAA HMS image above shows that agricultural fires on farms in Arkansas are releasing heavy amounts of particulate matter into the atmosphere. UALR public radio reports that these fires are often due to farmers who do not have the equipment necessary to remove the straw from older harvests, thus choose to burn their fields to clear their fields for the new harvests. However, this has often lead to respiratory illnesses for the youth and elderly in the area.
The AirNow Map image above shows that on September 6th the Los Angeles area in Californa had a Code Red Ozone level (Unhealthy, 96-115 ppb.) The AirNow Tech graph below reports that there was a max 100 ppb in the area.