RSA 125-I:2 Definitions.

I. "Air contaminant" means soot, cinders, ashes, any dust, fume, gas, mist (other than water), odor, toxic or radioactive material, particulate matter, or any combination thereof.
II. "Air toxic" means air contaminants designated by the commissioner of the department of environmental services from the organic compounds and metals listed by the United States Environmental Protection Agency in the Code of Federal Regulations, Title 40, Part 261, Subparts C and D and Table 4 of 450/5-86-011a and subsequent updates.
III. "Ambient air" means the unconfined atmosphere that envelops the earth.
IV. "Ambient air limit" means the standard designated pursuant to RSA 125-I:4 that establishes the maximum allowable concentration of emissions of a specific regulated toxic air pol