TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER a: PERMITS AND GENERAL PROVISIONS
PART 204 PREVENTION OF SIGNIFICANT DETERIORATION
SECTION 204.910 AMBIENT AIR CEILINGS
SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER a: PERMITS AND GENERAL PROVISIONS
PART 204 PREVENTION OF SIGNIFICANT DETERIORATION
SECTION 204.910 AMBIENT AIR CEILINGS
Section 204.910 Ambient Air Ceilings
No concentration of a pollutant shall exceed:
a) The concentration permitted under the national secondary ambient air quality standard; or
b) The concentration permitted under the national primary ambient air quality standard, whichever concentration is lowest for the pollutant for a period of exposure.