Both advocates and the Environmental Protection Agency have raised environmental justice concerns about the plant's location.

Last year, the Hoosier chapter of the Sierra Club won a lawsuit against the company for emitting too much particle pollution at its Whiting Refinery between 2015 and 2018. Exposure to particle pollution can cause heart attacks, aggravate asthma, and cause other heart and lung problems.

The Andersons Marathon Holdings LLC agreed to the fine as part of a settlement on Tuesday with the Environmental Protection Agency.

The penalty is part of a settlement Metalworking Lubricants Company reached with the U.S. Environmental Protection Agency and the Indiana Department of Environmental Management late last week.

The U.S. Supreme Court ruled in favor of Indiana and 18 other states in a case to limit how the federal government can reduce greenhouse gas emissions.

The air quality may become unhealthy for sensitive individuals, especially active children, the elderly, and anyone with asthma, lung disease, COVID-19, or other serious health problems.

This means children, seniors, and anyone with a heart or lung condition should avoid strenuous work or outside exercise.

Residents near a waste oil recycling company in Indianapolis have long complained of odor and other air pollution issues. Metalworking Lubricants Co. has had repeated water violations too.

Transportation is the largest source of the U.S. emissions that contribute to climate change -- and passenger cars and trucks make up more than half of those emissions.

The Hoosier chapter of the Sierra Club and three other environmental groups have reached a settlement with BP for emitting too much particle pollution at its Whiting Refinery in northwest Indiana.