A company on the West Side of Chicago has been cited for improperly storing chemicals and threatening public health, according to a suit filed by Illinois Attorney General Lisa Madigan.

Organizers of a clean water summit in Chicago next week hope to draft a plan for replacing the city's nearly 400,000 lead water pipes. 

A west suburban forest preserve is dispatching an army of freshwater mussels to clean up contaminated waters. “They may be small, but they have enormous beneficial effects on the lives of other organisms,” said one staff member.

Illinois Attorney General Lisa Madigan joined a group of 16 attorneys general last week in urging Congress to reject the rollback of standards that combat pollution and protect air quality.

With nearly $300 million in federal funding on the chopping block, leaders from across the Great Lakes region will convene next month in Chicago to address lead poisoning, oil pipelines and other threats to the area’s waters.

A spill last week at a U.S. Steel site in Northwest Indiana released an unknown amount of a potentially carcinogenic chemical into a Lake Michigan tributary, prompting the closure of three beaches at Indiana Dunes National Lakeshore.

With an eye toward Earth Day, Shedd Aquarium has launched a campaign encouraging people to switch from single-use plastic straws to reusable or biodegradable alternatives.

In 2015, Chicago air pollution reached elevated levels for a total of 151 days, a new report shows, increasing the risk of premature death, asthma attacks and other negative health effects for city residents.

Illinois and nine other states are threatening to sue the Trump administration over delayed implementation of energy efficiency standards. 

A community group has drawn up a plan to guide redevelopment of a heavily industrialized area in Chicago.

A newly released report shows additional sources of manganese dust on Chicago’s Southeast Side, where residents were already dealing with exposure to manganese and other pollutants. 

Cuts to the EPA’s budget would affect a disproportionate number of minority and low-income residents in Chicago, experts say. 

Chicago’s top public health official said her department will examine an area on the city’s Southeast Side that faces exposure to manganese dust.

Federal limits for exposure to manganese might not be adequate to protect public health, says a Washington University neurologist. 

Several advocacy groups are calling on Chicago to ban storage of materials containing manganese in residential areas following a 2016 study that revealed potentially harmful levels of manganese dust on the city’s Southeast Side.

A company on Chicago’s Southeast Side has 30 days to submit a revised plan to control the release of manganese dust, according to the city’s Department of Public Health.