Air quality and related values in some parks receives further protection under the Wilderness Act. "Wilderness" is
recognized as an area where the earth and its community of life are untrammeled by man, where man himself is a visitor who does not remain. An area of wilderness is further defined to mean in this act an area of undeveloped Federal land retaining its primeval character and influence, without permanent improvements or human habitation, which is protected and managed so as to preserve its natural conditions.
The resource protection mandate in the Wilderness Act echoes the language of the NPS Organic Act, i.e., these areas are managed "for the use of the American people in such as a manner as will leave them unimpaired for the future use and enjoyment as wilderness."