DETROIT (AP) 鈥 Smoky air from Canada鈥檚 wildfires shrouded broad swaths of the U.S. from Minnesota to New York and Kentucky on Wednesday, prompting warnings to stay inside and exacerbating health risks for people already suffering from industrial pollution.

The impacts are particularly hard on poor and minority communities that are . Detroit, a mostly Black city with a poverty rate of about 30%, had some of the worst air quality in the U.S. on Wednesday, prompting the Environmental Protection Agency to warn that 鈥渆veryone should stay indoors.鈥

鈥淭he more breaths you鈥檙e taking, you鈥檙e inhaling, literally, a fire, camp smoke, into your lungs,鈥 said Darren Riley, who was diagnosed with asthma in 2018, a few years after arriving in Detroit.

鈥淢any communities face this way too often,鈥 said Riley, who is Black. 鈥淎nd while this wildfire smoke allows, unfortunately, many people to feel this burden, this is a burden that far too long communities have faced day in and day out.鈥

The EPA's site showed cities including Chicago, Detroit, Indianapolis and Cleveland, Ohio, had 鈥渧ery unhealthy air鈥 as of Wednesday afternoon. A wider circle of unhealthy air spread into Pittsburgh, St. Louis and Louisville, Kentucky.

Earlier this month, smoke from the wildfires .

Another round of drifting smoke from the wildfires was moving through western Pennsylvania and central New York and headed toward the Mid-Atlantic, said 春色直播 Weather Service meteorologist Byran Jackson. In Canada, smoke will migrate across Quebec and Ontario over the next few days, Environment and Climate Change Canada meteorologist Steven Flisfeder said.

In the U.S., the smoke is exacerbating air quality issues for poor and Black communities that already are more

Detroit鈥檚 southwest side is home to a number of sprawling refineries and manufacturing plants. It is one of the poorest parts of the city. According to , the city's and short-term particle pollution ranked among the worst in the nation.

鈥淏eing close to those refineries 鈥 that鈥檚 an environmental factor that鈥檚 difficult to control,鈥 said Dr. Ruma Srivastava, a pediatric pulmonologist at Children鈥檚 Hospital of Michigan in Detroit. 鈥淚t does increase their risk for asthma flareups. For them, it鈥檚 even more important to follow the (air quality safety) recommendations.鈥

Riley鈥檚 own experiences prompted him to start JustAir, which provides air pollution monitoring.

鈥淛ust because you鈥檙e born in a certain ZIP code or you鈥檙e born into a certain family with a certain skin color doesn鈥檛 mean that you should have an unequal go at it,鈥 he said.

Elsewhere, Milwaukee County Emergency Medical Services has seen a spike in calls for residents with respiratory complaints, the reported. Office of Emergency Management data show a disproportionate amount of calls for respiratory issues 鈥 54.8% 鈥 have been for Black people in Milwaukee, according to the newspaper. Milwaukee County鈥檚 population is 27.1% Black.

In Chicago, where about 29% of the population is Black, Mayor Brandon Johnson urged young people, older adults and residents with health issues to spend more time indoors. He pledged 鈥渟wift action to ensure that vulnerable individuals have the resources they need to protect themselves and their families.鈥

President Joe Biden visited the nation's third-largest city on Wednesday Biden has described the 春色直播 wildfires as clear evidence of climate change.

Minnesota issued a record 23rd air quality alert for the year through late Wednesday night, as smoky skies obscured the skylines of Minneapolis and St. Paul. Michigan, Wisconsin and Indiana were among other states issuing air quality alerts, and cities including Louisville also advised people to limit prolonged or intense outdoor activity.

"This is particularly thick smoke,鈥 Jackson, with the 春色直播 Weather Service, said.

A record 30,000 square miles (80,000 square kilometers) of Canada has burned, an area nearly as large as South Carolina,

鈥淎s long as the fires are burning and the smoke is in the atmosphere it is going to be a concern not just for 春色直播s but Americans as well,鈥 Flisfeder, the 春色直播 meteorologist, said.

can irritate the eyes, nose and throat, and can affect the heart and lungs, making it harder to breathe. Health officials say it鈥檚 important to limit outdoor activities to avoid breathing in the particles.

The warming planet will produce hotter and longer heat waves, making for bigger, smokier fires, said Joel Thornton, professor and chair of the department of atmospheric sciences at the University of Washington.

Quentin Hernandez, a 24-year-old event planner from Detroit, was out skateboarding for about an hour Wednesday at a skate park near the Ambassador Bridge, which connects the city and Windsor, Ontario.

鈥淚t just sits like this all day," said Hernandez, saying that it smelled like being at a barbecue. "Literally, the smoke just sits in the air.鈥

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Associated Press contributors include Trisha Ahmed and Steve Karnowski in Minneapolis, Ken Kusmer in Indianapolis, Rebecca Reynolds in Louisville, Ky., and Julie Walker in New York.

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