Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 493 - Air pollution episode levels and episode emission control action programs
Section NR 493.02 - Definitions
Universal Citation: WI Admin Code ยง NR 493.02
Current through August 26, 2024
The definitions contained in ch. NR 400 apply to the terms used in this chapter. In addition, the following definitions apply to the terms used in this chapter:
(1) "Air pollution episode levels" means levels of air quality which are so degraded as to pose imminent danger to public health:
(a)
"Alert": The alert level is that concentration of one or more air contaminants
at which the first stage control actions begin.
(b) "Warning": The warning level indicates
air quality is continuing to degrade and that additional control actions are
necessary.
(c) "Emergency": The
emergency level indicates that the air quality is continuing to degrade to a
level which should never be reached and that the most stringent control actions
are necessary.
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