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Chemical Mechanisms at Low Temperatures

Wintertime ozone in the Uinta Basin is unique and requires improvements to the photochemical models used for winter conditions. Current chemical mechanisms within the modeling system assume a summertime temperature of 300 K (80° F) when performing important chemical reactions, far different from the wintertime temperatures in the Basin. In order to properly model the wintertime ozone problem in the Uinta Basin, current photochemical modeling systems need to be modified to better simulate winter temperatures and the impact of emissions from oil and gas activities on the formation of ozone in the Basin.