§ 103-6-2. Particulate matter.

(a)

Primary and Secondary ambient air quality standards are:

(1)

Sixty (60) micrograms per cubic meter-annual geometric mean, as a guide to be used in assessing achievement of the twenty-four (24) hour standard in Paragraph (a)(2) of this section.

(2)

One hundred fifty (150) micrograms per cubic meter-maximum twenty-four (24) hour concentration not to be exceeded more than once per year.

(b)

Particulate matter shall be measured by the reference method described in Appendix B of 40 CFR Part 50, or other method designated as such, or by an equivalent method.

(27-78-103.)

(27-78-103.)