Statutes, codes, and regulations
Wyoming Administrative Code
Agency 020 - Environmental Quality, Dept. ofSubagency 0002 - Air Quality
Chapter 2 - Ambient Standards
Section 2-10 - Ambient standards for lead

020-2 Wyo. Code R. § 2-10

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Current through April 27, 2019
Section 2-10 - Ambient standards for lead

(a) The primary and secondary ambient air quality standards for lead (Pb) and its compounds are 0.15 micrograms per cubic meter, arithmetic mean concentration over a 3-month period, measured in the ambient air as Pb either by:

  • (i) A reference method based on 40 CFR part 50, Appendix G (Reference Method for the Determination of Lead in Suspended Particulate Matter Collected From Ambient Air), and designated in accordance with 40 CFR part 53 or;
  • (ii) An equivalent method designated in accordance with 40 CFR part 53.

(b) The primary and secondary ambient air quality standards for Pb are met when the maximum arithmetic 3-month mean concentration for a 3-year period, as determined in accordance with Appendix R (Interpretation of the National Ambient Air Quality Standards for Lead) of 40 CFR part 50, is less than or equal to 0.15 micrograms per cubic meter.

020-2 Wyo. Code R. § 2-10

Amended, Eff. 10/13/2015.

Amended, Eff. 12/20/2016.

Amended, Eff. 2/5/2018.