Or. Rev. Stat. § 468.939
(1) A person commits the crime of unlawful air pollution in the first degree if the person, in violation of ORS chapter 468A or any rule, permit, order or any applicable requirement adopted or issued under ORS chapter 468A, knowingly discharges, emits or allows to be discharged or emitted any air contaminant into the outdoor atmosphere, and:
[1993 c.422 §7]