内容摘要：Around 200 people squeezed into the local Jewish Community Center on Wednesday evening for a vigil that featured prayer, songs, a short speech by Colorado Gov. Jared Polis and emotional testimony from a victim and witnesses to the attack.

Around 200 people squeezed into the local Jewish Community Center on Wednesday evening for a vigil that featured prayer, songs, a short speech by Colorado Gov. Jared Polis and emotional testimony from a victim and witnesses to the attack.

, which presents risks for those breathing it.The Midwest, Northeast and Great Lakes regions of the U.S. have “very unhealthy” air quality, according to the Environmental Protection Agency, and experts say people should take precautions.

The EPA’s Air Quality Index converts all pollutant levels into a single number. The lower the number, the better.Anything below 50 is classified as “healthy.” Fifty to 100 is “moderate” while 100-150 is unhealthy for “sensitive groups,” and anything above 150 is bad for everyone. The Air Quality Index was aroundSensitive groups include people with asthma, lung disease or chronic obstructive pulmonary disease, said Dr. Sanjay Sethi, chief of the division of pulmonary, critical care and sleep medicine at the University of Buffalo’s medical school.

“If you have heart or lung problems, then you’ve got to be definitely more careful,” Sethi said. “I would either avoid going outside or wear an N95 (mask) or at least a dust mask.”Hazy skies diminish the view of the Boston Harbor Islands, Wednesday, June 4, 2025, in Boston, Mass. (AP Photo/Robert F. Bukaty)

Hazy skies diminish the view of the Boston Harbor Islands, Wednesday, June 4, 2025, in Boston, Mass. (AP Photo/Robert F. Bukaty)

Sometimes the air is bad enough to see or smell the smoke. Even if you don’t see the pollution, it can be unhealthy to breathe.marks the latest step in the

nearly completed goal of installing flush toilets at its dozen most popular, staffed sites. The most recent success, with the final three planned to be completed soon, came before the unveiling of a statue of Welk at a site that draws fans who recall “The Lawrence Welk Show,” which ran on TV for decades starting in the 1950s.The North Dakota group’s goal of replacing pit toilets with flush units may seem like a humble aspiration to some, but it’s an important milestone, said Chris Dorfschmidt, a historic sites manager.

“A lot of our sites are kind of in the middle of nowhere. As I like to put it, history didn’t happen where it’s convenient,” he said. “Because of that, if you’ve driven all the way out there, and that’s the best we can do to kind of accommodate you, it’s not the most pleasant experience.”North Dakota has 60 state historic sites — everything from museums and an underground nuclear launch facility to plaques mounted on boulders in fields.