Section Env-A 305.02 - Determination of Attainment of CO StandardsThe department shall determine attainment of the primary standards for CO specified in Env-A 305.01 as follows:
(a) The 8-hour primary ambient air quality standard for CO shall be deemed to be attained when the 8-hour average concentration exceeds 9 ppm not more than once per calendar year; and(b) The 1-hour primary ambient air quality standard for CO shall be deemed to be attained when the 1-hour average concentration exceeds 35 ppm not more than once per calendar year.N.H. Code Admin. R. Env-A 305.02
#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