Wash. Admin. Code § 173-476-900
Current through Register Vol. 24-20, October 15, 2024
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 [MU]g/m3 | 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 [MU]g/m3 | 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 [MU]g/m3 | 98th percentile, averaged over 3 years | ||||
| Lead | Rolling 3-month average | 0.15 [MICRO]g/m3 | 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 1hour 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 1hour 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 | |||||
Wash. Admin. Code § 173-476-900