Lemont residents fight Citgo plan to loosen carbon monoxide limits at Illinois refinery

Residents of Lemont, Illinois are pushing back against a Citgo proposal that would relax carbon monoxide emissions limits at a local refinery. The plan would allow higher levels of the pollutant, which can cause serious health problems and contributes to air quality degradation. Community members argue the change would put their health at risk and undermine years of progress on local air standards. The dispute highlights a common tension in emissions policy: balancing industrial operations with environmental and public health protections. Citgo says the new limits are still within federal guidelines, but residents and local advocates counter that the state should enforce stricter rules, not weaker ones. The outcome could set a precedent for how similar refinery emissions requests are handled in the region. For anyone tracking climate and air quality policy, this is a concrete example of how local fights over emissions standards play out. It also raises questions about how much leeway regulators give industrial sources when federal standards are less strict than state or local ones.