W. Va. Code R. § 45-11-4

Current through Register Vol. XLI, No. 50, December 13, 2024

Section 45-11-4 - Methods of Measurement

4.1. PM₁₀ concentrations shall be measured in the ambient air as particulate matter with an aerodynamic diameter less than or equal to 10 micrometers by:

4.1.a. Reference method based on Appendix J of 40 CFR 50, or

4.1.b. An equivalent method designated in accordance with 40 CFR 53.

4.2. Sulfur dioxide concentrations shall be measured in ambient air as sulfur dioxide by:

4.2.a. Reference method based on Appendix A of 40 CFR 50, or

4.2.b. An equivalent method designated in accordance with 40 CFR 53.

4.3. Carbon monoxide concentrations shall be measured in ambient air as carbon monoxide by:

4.3.a. Reference method based on Appendix C of 40 CFR 50, or

4.3.b. An equivalent method designated in accordance with 40 CFR 53.

4.4. Nitrogen dioxide concentrations shall be measured in ambient air as nitrogen dioxide by:

4.4.a. Reference method based on Appendix F of 40 CFR 50, or

4.4.b. An equivalent method designated in accordance with 40 CFR 53.

4.5. Ozone concentrations shall be measured in the ambient air as ozone by:

4.5.a. Reference method based on Appendix D of 40 CFR 50, or

4.5.b. An equivalent method designated in accordance with 40 CFR 53.

W. Va. Code R. § 45-11-4