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NO3 was measured at the Sumas Eagle Ridge Site during the Pacific 2001 Air Quality Study. The average maximum levels (30min average) observed on four nights was 34pptv. NO3 at these levels can play a significant role in oxidation of volatile oxidation compounds (VOC), particularly biogenic monoterpenes. N2O5 levels were calculated on two nights presuming that the equilibrium, NO2+NO3⇄N2O5, was maintained...
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