In December 2015, the EPA released its 2011 National Air Toxic Assessment to help state and local agencies prioritize the required steps in identifying and mitigating sources of air pollution. In this report, it was measured that chloroprene was being released from Denka Performance Elastomer's Pontchartrain facility located in LaPlace, Louisiana. EPA worked with the Louisiana Department of Environmental Quality, DuPont and the nonprofit organization Louisiana Environmental Action Network to institute monitoring of chloroprene pollution near the facility and in the surrounding neighborhood. Air monitoring is ongoing.