Minn. Stat. § 115D.14: DEFINITIONS.

Subdivision 1. Scope.

As used in this section and section 115D.15, the terms defined in this section have the meanings given.

Subd. 2. Agency.

"Agency" means the Pollution Control Agency.

Subd. 3. Integrity of aquatic or terrestrial ecosystems.

"Integrity of aquatic or terrestrial ecosystems" means the maintenance of mutually beneficial species of plants and animals and of other natural characteristics so that the biological viability of the ecosystem is ensured.

Subd. 4. Toxic air contaminant.

"Toxic air contaminant" means an air contaminant that may cause or contribute to an increase in mortality or an increase in a chronic or an acute illness, or which may pose a present or potential hazard to human health or the integrity of aquatic or terrestrial ecosystems.