| http://www.w3.org/ns/prov#value | - NAC 445B.109 ???Nitrogen oxides??? defined. ???Nitrogen oxides??? means all oxides of nitrogen except nitrous oxide, as measured by test methods approved by the EPA. [Environmental Comm???n, Air Quality Reg. ??? 1.116, eff. 12-4-76]???(NAC A 3-29-94, eff. 11-15-94)???(Substituted in revision for NAC 445.552)
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