The air quality control region which encompasses the Reservation of the Confederated Tribes of the Coos, Lower Umpqua and Siuslaw Indians is classified as follows for purposes of episode plans:
Pollutant | Classification |
Carbon monoxide | III |
Nitrogen dioxide | III |
Ozone | III |
Particulate matter (PM10) | II |
Sulfur oxides | III |
40 C.F.R. §49.9985