For the purposes of this chapter, the following terms shall have the meanings respectively ascribed to them by this section:

(1) AIR POLLUTION. The presence in the outdoor atmosphere of one or more air contaminants in such quantities and duration as are, or tend to be, injurious to human health or welfare, animal or plant life or property or would interfere with the enjoyment of life or property throughout the state and in such territories of the state as shall be affected thereby.

(2) AIR CONTAMINANT. Any solid, liquid or gaseous matter, any odor or any combination thereof, from whatever source.

(3) COMMISSION. The Alabama Department of Environmental Management.

(4) PERSON. Any and all persons, natural or artificial, including, but not limited to, any individual, partnership, association, society, joint stock company, firm, company, corporation, institution, trust, estate, or other legal or other business organization or any governmental entity, and any successor, representative, agent or agency of the foregoing.

(5) EMISSION. A release into the outdoor atmosphere of air contaminants.

(6) DIRECTOR. The Director of the Alabama Department of Environmental Management.

(7) STATE HEALTH OFFICER. The Director of the Alabama Department of Environmental Management.

(8) CHAIRMAN. The Director of the Alabama Department of Environmental Management.

(9) STATE AIR POLLUTION CONTROL COMMISSION. The Alabama Department of Environmental Management.

(10) ENVIRONMENTAL MANAGEMENT COMMISSION. The Environmental Management Commission of the Alabama Department of Environmental Management.