The Sierra Club's Andy Knott speaks at a rally on Thursday in front of a 15-foot tall inflatable inhaler in Keiner Plaza.
Credit Sarah Skiold-Hanlin, St. Louis Public Radio & The Beacon
Ameren's 2,400-megawatt plant near Labadie, Missouri, is the state's largest coal-fired power plant.
Credit Véronique LaCapra, St. Louis Public Radio & The Beacon
Andy Knott uses an "opacity" scale to illustrate the disparity between acceptable emissions levels and those considered harmful. The darker squares represent increasing particulate matter in smokestack emissions.
Credit Sarah Skiöld-Hanlin, St. Louis Public Radio & The Beacon
The Sierra Club says Ameren has been routinely violating air quality standards at its St. Louis-area power plants.
In a Notice of Intent to Sue delivered to Ameren on Wednesday afternoon, the Sierra Club alleges the company's Labadie, Meramec, and Rush Island plants have exceeded air pollution limits almost 10,000 times since 2008.
Residents of Saint Louis, Franklin County and Jefferson County staged a “Miss and Mr. Toxic Water Pollution” pageant on the banks of the Mississippi River on Tuesday to draw attention to the issue of water contamination from Missouri's coal-fired power plants.
Credit Sarah Skiold-Hanlin, St. Louis Public Radio
The Missouri Department of Natural Resources will hold another public awareness session Aug. 14. This one will focus on the permitting process for a proposed coal ash landfill at Ameren's Meramec power plant near Arnold, Mo.
The proposed landfill site is located at 8200 Fine Road, approximately 3.6 miles southeast of the intersection of Interstate 55 and Route 141. Ameren is preparing a detailed site investigation work plan. The session is scheduled for 6:30 p.m. at Rogers Elementary School, 7700 Fine Road in St. Louis.
Representatives of MDNR and Ameren will be available to answer questions.