EPA REGION 7.

This section offers U.S. Environment Protection Agency (EPA) Region 7 news briefs. The Department of Natural Resources of Iowa enacted a 1-hour and annual background levels for rural areas, which replaces the old method of calculating background nitrogen oxide levels for dispersion modeling purposes. Proposed amendments was released by the Missouri Department of Natural Resources amending its rules regulating stage I and stage II gasoline dispensing facilities in the state.