Air pollution in the Motor City area is getting worse, according to a new report citing transportation emissions as the primary culprit.

The American Lung Association's 2025 "State of the Air" report ranks Detroit, Warren and Ann Arbor as sixth-worst in the nation for year-round particle pollution. Last year, they ranked 13th.

Ann Arbor's Ecology Center reports passenger vehicles and light-duty trucks account for 58% of transportation emissions, and said Detroit is among the most challenging places to live with asthma.

Laura Kate Bender, assistant vice president of nationwide healthy air for the American Lung Association, explained the danger.

"If you are a person with asthma -- a kid, a senior, someone who works for plays outdoors -- or if you have lung disease, it could put you at greater risk," Bender outlined. "But anyone's health can be harmed from breathing unhealthy levels of ozone and particle pollution."

While most people like the concept of cleaner vehicles, some, including the American Petroleum Institute, argue strict mandates limit consumer choice and strain the power grid. They emphasized the need for fossil fuel-powered vehicles in sectors like long-haul trucking, where EV options are limited.

The U.S. House recently voted to block California from setting stricter vehicle pollution rules than the federal government. The state wanted to ban new gas-powered car sales by 2035. Bender pointed out nearly half the U.S. population experienced unhealthy levels of pollution in this year's report, an increase from last year.

"This year's report is the first one that covers the 2023 Canadian wildfire smoke; those unhealthy levels really show up in this year's results," Bender reported. "We also saw warmer temperatures, heat waves that drove unhealthy levels of ozone pollution."

U.S. Department of Energy data show all electric vehicles and some hybrids typically produce lower emissions than conventional vehicles and in some cases, no tailpipe emissions. But some of the government subsidies Americans have used to purchase EVs and hybrids are not popular with some groups, including the Heritage Foundation and Cato Institute.


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Indiana residents now have a new way to track pollution from coal plants across the state.

The Sierra Club's new online national dashboard shows how rollbacks of federal pollution rules could increase harmful emissions from Indiana's dozen coal plants.

Robyn Skuya-Boss, director of the Hoosier Chapter of the Sierra Club, said the data highlights risks for both rural and urban communities.

"Whether you're living in a larger city or in a small community, you could be being impacted," Skuya-Boss pointed out. "Some of the worst air quality in the nation is located in southern Indiana because there's such a high concentration of super-polluting coal plants."

The dashboard allows users to zoom in on specific plants and track pollutants like mercury, sulfur dioxide and nitrous oxide. Utilities and state officials said they follow current environmental laws and balancing energy needs and emissions limits can be complex.

Skuya-Boss stressed Indiana families deserve to know when air pollution may threaten their health.

"I think when people are tuned into those bad air quality days, what you start to see is that you can kind of get a sense of how impacted your community is by air pollution issues," Skuya-Boss observed.

Environmental groups said the dashboard also gives Hoosiers a tool to demand stronger action from state regulators and lawmakers.

Air pollution in Washington is getting worse, according to a new report citing transportation emissions as the primary culprit.

Eight of the 12 Washington counties surveyed received an "F" grade for particle pollution, including King and Pierce counties. Yakima and Seattle ranked the eighth- and ninth-worst cities in the country.

Transportation emissions account for nearly a quarter of total air pollution and about 40% of Washington's greenhouse gas emissions.

Laura Kate Bender, assistant vice president of nationwide healthy air for the American Lung Association, said more Americans live in polluted areas now than any time within the last 10 years.

"After decades of progress to clean up the air from policies under the Clean Air Act, we're now starting to see an uptick in pollution levels once again," Bender pointed out. "It shows that we really need to double down on protections that are limiting emissions from vehicles, not roll them back."

Congressional Republicans just voted to rescind the federal waivers that allow California to set emissions standards for vehicles that are stricter than national ones, arguing the rules hurt consumers and the trucking industry.

The report marked the seventh straight year of an increasing health threat from particle pollution nationwide. Particulate matter is a mixture of tiny solids or liquid droplets suspended in air. Small particles can lodge deep in the lungs and cause health problems, including cancer and asthma attacks. Bender added smoke from wildfires, driven by climate change, adds to the problem.

"Those conditions are being made worse by changing temperatures," Bender noted. "Climate change means more extreme heat, and more extreme heat can lead to more ozone pollution, and those are both results that show up in this year's report."

Congressional Republicans are considering revoking the federal tax credit of up to $7,500 for new electric vehicle purchases. The House infrastructure committee is also debating new registration fees which would charge people who drive electric cars more than those who drive gas-powered vehicles.


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California has some of the dirtiest air in the nation, according to the American Lung Association's new State of the Air report.

Researchers looked at ozone pollution and both short and long-term particle pollution. Thirteen counties got an "F" grade in all three categories. Pollution in the counties mainly came from vehicle emissions and smoke from wildfires.

Laura Kate Bender, assistant vice president of nationwide healthy air for the American Lung Association, said climate change is contributing to the counties' poor air quality.

"Those conditions are being made worse by changing temperatures," Bender pointed out. "Climate change means more extreme heat, and more extreme heat can lead to more ozone pollution, and those are both results that show up in this year's report."

Five of the seven counties with the most yearly air pollution in the nation are in California. The three most polluting counties are in the Central Valley, with Los Angeles County and the Bay Area not far behind. Republicans in the U.S. House of Representatives just voted to rescind the federal waivers allowing California to set strict emissions standards for vehicles, arguing the rules hurt consumers and the trucking industry.

The report also found 46% of Americans live in places getting failing grades for unhealthy levels of ozone or particle pollution. Bender stressed more Americans live in polluted areas now than any time within the last 10 years.

"After decades of progress to clean up the air from policies under the Clean Air Act, we're now starting to see an uptick in pollution levels once again, and it shows that we really need to double down on protections that are limiting emissions from vehicles, not roll them back."

The House infrastructure committee is also considering highway funding fees to charge people who drive an electric car more than those who own a gas-powered vehicle.


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