OAR 340-202-0130
Ambient Air Quality Standards: Lead

The concentration of lead and its compounds in ambient air must not exceed:

(1)

0.15 micrograms per cubic meter as a maximum arithmetic mean averaged over a calendar quarter, as measured by a reference method based on appendix G of 40 CFR part 53 or an equivalent method designated in accordance with 40 CFR part 53.

(2)

The standard is met when the maximum arithmetic 3-month mean concentration for a 3-year period, as determined in accordance with appendix R of 40 CFR part, is less than or equal to 0.15 micrograms per cubic meter.
[NOTE: This rule is included in the State of Oregon Clean Air Act Implementation Plan that EQC adopted under OAR 340-200-0040 (State of Oregon Clean Air Act Implementation Plan).]
[NOTE: View a PDF of referenced appendices by clicking on “Tables” link below.]
[ED. NOTE: To view attachments referenced in rule text, click here to view rule.]

Source: Rule 340-202-0130 — Ambient Air Quality Standards: Lead, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=340-202-0130.

Last Updated

Jun. 8, 2021

Rule 340-202-0130’s source at or​.us