Section Env-A 308.01 - Primary and Secondary Ambient Air Quality Standards for LeadThe primary and secondary ambient air quality standards for lead and its compounds, CAS # 7439-92-1, shall be as follows:
(a) The primary ambient air quality standard for lead shall be 0.15 µg/m3, 3-month arithmetic mean concentration; and(b) The secondary ambient air quality standard for lead shall be the same as the primary ambient air quality standard for lead designated in (a), above.N.H. Admin. Code § Env-A 308.01
#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