20220519 11151300 1.0 TRUE TRUE usfs_lands The St. Louis air quality nonattainment areas geospatial data layer contains regions representing the geographic extent of areas that are estimated to be out of compliance with the United States Environmental Protection Agency's (EPA) air quality guidelines. The St. Louis area is currently designated as a moderate 8-hour ozone nonattainment area. The nonattainment area is located on both sides of the Mississippi River, the dividing line between Missouri and Illinois. The Illinois portion consists of Madison, Monroe, St. Clair and Jersey Counties. The Missouri portion of the nonattainment area consists of Franklin, Jefferson, St. Charles and St. Louis Counties and St. Louis City. The department has prepared numerous air quality planning documents to meet state and federal clean air mandates to address ozone pollution in the St. Louis area. In 1997 the ozone National Ambient Air Quality Standards (NAAQS) was reviewed, and EPA recommended that the ozone standard be changed from 0.12 parts per million of ozone measured over one hour to a standard of 0.08 parts per million measured over eight hours, with the average fourth highest concentration over a three-year period determining whether an area is in compliance. The city of Herculaneum is included in this data set because it is designated as a nonattainment area for lead. abandoned mine lands MO DNR Abandoned mine lands Missouri Department of Natural Resources, Division of Environmental Quality, Air Pollution Control Program and the Missouri Department of Natural Resources, Information Technology Services Division. iVBORw0KGgoAAAANSUhEUgAAASwAAADICAYAAABS39xVAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAO xAAADsQBlSsOGwAAESNJREFUeJzt3Vlv3Od1x/EzO2eGM9z3TRS1WJIl2bLsODESNLHRom26oL3o TYH2tu+hL6NAX0JvetkivWibtKhdJ5HdWE4sWSItbuIi7jtnL36Houra3GyF1DzQ9xMwISxyNJSj H85znud/nnitVqsZAAQg/qLfAACcFIEFIBgEFoBgEFgAgkFgAQgGgQUgGAQWgGAQWACCQWABCAaB BSAYBBaAYBBYAIJBYAEIBoEFIBgEFoBgEFgAgkFgAQgGgQUgGAQWgGAQWACCQWABCAaBBSAYBBaA YBBYAIJBYAEIBoEFIBgEFoBgEFgAgkFgAQgGgQUgGAQWgGAQWACCQWABCAaBBSAYBBaAYBBYAIJB YAEIBoEFIBgEFoBgEFgAgkFgAQgGgQUgGAQWgGAQWACCQWABCAaBBSAYBBaAYBBYAIJBYAEIBoEF IBgEFoBgEFgAgkFgAQgGgQUgGAQWgGAQWACCQWABCAaBBSAYBBaAYBBYAIJBYAEIBoEFIBgEFoBg 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