(ABC 6 News) – Minnesota Attorney General Keith Ellison and Minneapolis and Saint Paul updated their lawsuit over Operation Metro Surge with new survey data on economic harm.

Researchers at the University of California San Diego conducted two surveys tied to the amended lawsuit. The lawsuit says the federal operation violated the Constitution and caused lasting economic damage.

The first survey was done between February and March and included nearly 1,400 residents. It found workers lost more than $240 million in wages during the operation.

A separate newly released survey of about 900 businesses found more than $600 million in lost revenue. The updated lawsuit from Keith Ellison and the cities of Minneapolis and Saint Paul adds that new data to its claims.

Indianapolis and the surrounding metropolitan area failed a number of critical air pollution measures in the American Lung Association’s latest State of the Air report.

The ALA’s annual nationwide report published each spring gives the Indianapolis-Carmel-Muncie metro area an “F” in smog and soot pollution. The report analyzes emissions data over a three-year period from 2022 to 2024.

Smog is ground-level ozone pollution and soot is particulate matter. The two comprise two of the six commonly found air pollutants in the United States according to the EPA.

Both pollutants form in part when coal-fired power plants and diesel engines burn fossil fuels. Smog and soot can cause premature death and other serious health hazards such as heart attacks, strokes, preterm births, asthma and cognitive decline, according to the ALA.

The lung health report ranks the central Indiana metro area in a number of categories with the region performing poorly in most. Indianapolis-Carmel-Muncie ranked the 11^th most polluted area for year-round particle pollution and 14th for short-term particle pollution.

Indiana children at risk from air pollution

And the rest of the state fares little better.

More than 670,000 Hoosier children breath unhealthy levels of air pollution, the report says.

This year’s report focus on the risk to youth that polluted air can pose. Small lungs are particularly vulnerable, said Tiffany Nichols, ALA director of advocacy.

“Infants, children and teens have lungs that are still developing, which makes them more susceptible to the impacts of unhealthy air,” Nichols said.

To prevent today’s youth from developing diseases related to polluted air, the American Lung Association has been asking the U.S. Environmental Protection Agency to stop rolling back clean air rules put in place by previous administrations. The Indiana chapter has also asked state lawmakers to take steps to protect air quality.