15A N.C. Admin. Code 2D.0408

Current through Register Vol. 39, No. 12, December 1, 2024

Section 02D .0408 - LEAD

The ambient air quality standard for lead and its compounds, measured as elemental lead by a reference method based on Appendix G of 40 CFR Part 50 or by an equivalent method established under 40 CFR Part 53, shall be 0.15 micrograms per cubic meter. The standard shall be deemed met when the maximum arithmetic three-month mean concentration for a three-year period, as determined in accordance with Appendix R of 40 CFR Part 50, is less than or equal to 0.15 micrograms per cubic meter.

15A N.C. Admin. Code 02D .0408

Authority G.S. 143-215.3(a)(1); 143-215.107(a)(3);
Eff. June 1, 1980;
Amended Eff. January 1, 2010; July 1, 1984;
Readopted Eff. January 1, 2018.

Authority G.S. 143-215.3(a)(1); 143-215.107(a)(3);
Eff. 6/1/1980;
Amended Eff. 1/1/2010; July 1, 1984.

Readopted by North Carolina Register Volume 32, Issue 15, February 1, 2018 effective 1/1/2018.