WAC 173-476-900. Table of standards

Disclaimer: This table is provided as an overview. See complete rule for more detail. Pollutant Averaging Time Level Remarks Measurement Method Interpretation Method Particle Pollution PM-10 24-hour 150 μ g/m 3 Not to be exceeded more than once per year averaged over 3 years 40 C.F.R. Part 50, Appendix J 40 C.F.R. Part 50, Appendix K PM-2.5 Annual 12.0 μ g/m 3 Annual mean, averaged over 3 years 40 C.F.R. Part 50, Appendix L 40 C.F.R. Part 50, Appendix N 24-hour 35 μ g/m 3 98th percentile, averaged over 3 years Lead Rolling 3-month average 0.15 µ g/m 3 Not to be exceeded 40 C.F.R. Part 50, Appendix G 40 C.F.R. Part 50, Appendix R Sulfur Dioxide Annual 0.02 ppmv Not to be exceeded in a calendar year 40 C.F.R. Part 50, Appendix A-1 or A-2 WAC 173-476-130 (3) 24-hour 0.14 ppmv Not to be exceeded more than once per year 3-hour 0.5 ppmv Not to be exceeded more than once per year 1-hour 75 ppbv 99th percentile of 1-hour daily maximum concentrations, averaged over 3 years Nitrogen Dioxide Annual 53 ppbv Annual Mean 40 C.F.R. Part 50, Appendix F 40 C.F.R. Part 50, Appendix S 1-hour 100 ppbv 98th percentile of 1-hour daily maximum concentrations, averaged over 3 years Ozone 8-hour 0.070 ppmv Annual fourth-highest daily maximum 8-hr concentration, averaged over 3 years 40 C.F.R. Part 50, Appendix D 40 C.F.R. Part 50, Appendix U Carbon Monoxide 8-hour 9 ppmv Not to be exceeded more than once per year 40 C.F.R. Part 50, Appendix C WAC 173-476-160 (3) 1-hour 35 ppmv Pollutant Averaging Time Level Remarks Measurement Method Interpretation Method Particle Pollution PM-10 24-hour 150 μ g/m 3 Not to be exceeded more than once per year averaged over 3 years 40 C.F.R. Part 50, Appendix J 40 C.F.R. Part 50, Appendix K PM-2.5 Annual 12.0 μ g/m 3 Annual mean, averaged over 3 years 40 C.F.R. Part 50, Appendix L 40 C.F.R. Part 50, Appendix N 24-hour 35 μ g/m 3 98th percentile, averaged over 3 years Lead Rolling 3-month average 0.15 µ g/m 3 Not to be exceeded 40 C.F.R. Part 50, Appendix G 40 C.F.R. Part 50, Appendix R Sulfur Dioxide Annual 0.02 ppmv Not to be exceeded in a calendar year 40 C.F.R. Part 50, Appendix A-1 or A-2 WAC 173-476-130 (3) 24-hour 0.14 ppmv Not to be exceeded more than once per year 3-hour 0.5 ppmv Not to be exceeded more than once per year 1-hour 75 ppbv 99th percentile of 1-hour daily maximum concentrations, averaged over 3 years Nitrogen Dioxide Annual 53 ppbv Annual Mean 40 C.F.R. Part 50, Appendix F 40 C.F.R. Part 50, Appendix S 1-hour 100 ppbv 98th percentile of 1-hour daily maximum concentrations, averaged over 3 years Ozone 8-hour 0.070 ppmv Annual fourth-highest daily maximum 8-hr concentration, averaged over 3 years 40 C.F.R. Part 50, Appendix D 40 C.F.R. Part 50, Appendix U Carbon Monoxide 8-hour 9 ppmv Not to be exceeded more than once per year 40 C.F.R. Part 50, Appendix C WAC 173-476-160 (3) 1-hour 35 ppmv