N.H. Code Admin. R. Env-A 1409.01
Determination of 24-Hour Ambient Air Limits
Effective Feb 3, 2022#6328, INTERIM, eff 8-24-96, EXPIRED: 12-22-96 New. #6468-B, eff 3-5-97; ss and moved by #8278, eff 2-4-05 (from Env-A 1410.01); ss by #9601, eff 11-25-09; ss by #12443, eff 1-5-18; ss by #13334, eff 2-3-22Air Related Programs
(a) Where a reference concentration limit has been established by the EPA for an RTAP, the 24-hour AAL for that pollutant shall be the reference concentration limit if:
- (1) The RTAP causes developmental or reproductive effects; or
- (2) The annual AAL is based on the reference concentration limit, and the 24-hour AAL, as calculated in accordance with (b), below, is less than the reference concentration limit.
- (b) In all cases other than those specified in (a), above, the 24-hour AAL shall be a modified occupational health standard as determined by the calculation specified in Env-A 1409.02.
Source. #6328, INTERIM, eff 8-24-96, EXPIRED: 12-22-96 New. #6468-B, eff 3-5-97; ss and moved by #8278, eff 2-4-05 (from Env-A 1410.01); ss by #9601, eff 11-25-09; ss by #12443, eff 1-5-18; ss by #13334, eff 2-3-22