Minnesota Administrative Rules
Agency 167 - Pollution Control Agency
Chapter 7009 - AMBIENT AIR QUALITY STANDARDS
AMBIENT AIR QUALITY STANDARDS
Part 7009.0010 - DEFINITIONS

Subpart 1. Scope.

The definitions in this part apply to parts 7009.0010 to 7009.0080. The definitions in parts 7000.0100, 7005.0100, and 7007.0100 apply to this chapter unless the terms are otherwise defined in this part.

Subp. 1a. Averaging time.

"Averaging time" means the time period specified in part 7009.0080 over which air pollution concentration data are averaged in preparation for comparison to the ambient air quality standard.

Subp. 1b. Form of the standard.

"Form of the standard" means the method used to determine whether ambient air quality pollutant concentrations exceed the numeric level of the applicable primary or secondary ambient air quality standard.

Subp. 2. Primary ambient air quality standards; primary standards.

"Primary ambient air quality standards" or "primary standards" mean levels established to protect the public health from adverse effects. The adverse effects that the standards should protect against include acute or chronic subjective symptoms and physiological changes that are likely to interfere with normal activity in healthy or sensitive individuals or to interfere unreasonably with the enjoyment of life or property.

Subp. 3. Secondary ambient air quality standards; secondary standards.

"Secondary ambient air quality standards" or "secondary standards" mean levels established to protect the public welfare from any known or anticipated adverse effects, such as injury to agricultural crops and livestock, damage to or deterioration of property, annoyance and nuisance of persons, or hazards to air and ground transportation.

Subp. 4. Total suspended particulate.

"Total suspended particulate" has the meaning given in Code of Federal Regulations, title 40, section 51.100(ss), as amended.