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Correction to draft Cleaner Air Oregon rules tables posted



DEQ and OHA have posted corrected versions of two tables included in the Cleaner Air Oregon public comment rules. Both Table 3 (Toxicity Reference Values) and Table 5 (Risk Based Concentrations) have been corrected in order to fix a clerical error that was discovered after the tables were produced for publication.The updated tables are posted here [ ].

The corrected entries in the two revised tables are for formaldehyde, an air toxic. Incorrect values for formaldehyde were inadvertently entered when the tables were made.The corrections make the values listed on the corrected tables consistent with how other toxicity standards were developed in the tables. DEQ corrected the values for formaldehyde so that they match DEQs proposed Ambient Benchmark Concentrations developed by the Air Toxics Science Advisory Committee. Other similar toxicity values have also been rechecked and verified.

We regret any inconvenience and confusion this may have caused.


*Public Participation*


DEQ will accept public comments on this proposed rulemaking until 4 p.m. on Dec. 22, 2017.

DEQ will be holding multiple public hearings around the state on this proposed rulemaking.

Information on how to attend a public hearing or submit comments online can be found on the Cleaner Air Oregon web page [ ].

*Additional Information*


To view copies of the notice documents, learn more about this rulemaking, or to submit comments, please visit the Cleaner Air Oregon web page [ ].

If you want to receive future email notices about this rulemaking, you can sign up at: DEQ Govdelivery [ ].

You can also obtain more information about this rulemaking by contacting:

Joe Westersund



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