Regulation & law · 20/12/2011
EPA Proposes Determination that St. Louis Nonattainment Area Attained 1997 Annual Fine Particulate Standards
The Environmental Protection Agency (EPA) is proposing to determine that the St. Louis, Missouri-Illinois nonattainment area has met the 1997 annual fine particulate standards by its applicable attainment date of April 5, 2010, based on quality-assured monitoring data from 2007-2009.
Original source language: Federal Register — All DocumentsOpen original release →