N.H. Code Admin. R. Env-A 303.03

Current through Register No. 25, June 20, 2024

Section Env-A 303.03 - Measurement for PM Attainment Determinations

For the purpose of determining attainment of the primary and secondary ambient air quality standards for PM specified in Env-A 303.01, the following shall apply:

(a) PM₁₀ in the ambient air shall be measured by either:

(1) A reference method based on 40 CFR 50 Appendix J and designated in accordance with 40 CFR 53; or

(2) An equivalent method designated in accordance with 40 CFR 53; and

(b) PM_2.5 in the ambient air shall be measured by either:

(1) A reference method based on 40 CFR 50 Appendix L and designated in accordance with 40 CFR 53; or

(2) An equivalent method designated in accordance with 40 CFR 53.

N.H. Code Admin. R. Env-A 303.03

#120, eff 8-31-73; ss by #461, eff 4-20-74; ss by #1333, eff 4-1-79; ss by #1614, eff 7-30-80; ss by #1717, eff 2-19-81; ss by #2332, eff 4-29-83; ss by #2938, eff 12-27-84; ss by #5033, eff 12-27-90; ss by #6227, eff 4-25-96; ss by #8054, eff 2-28-04; ss by #10173, eff 9-1-12

Amended by Volume XLII Number 23, Filed June 9, 2022, Proposed by #13382, Effective 5/25/2022, Expires 5/25/2032