ニューヨーク・タイムズさんのインスタグラム写真 - (ニューヨーク・タイムズInstagram)「Chicagoans awoke Wednesday morning to a second day of smoky air enveloping the city, obscuring the skyline and shrouding Lake Michigan in a whitish haze. The air quality remained unhealthy, and public health officials warned residents to take precautions before venturing outdoors. In cities throughout the Midwest, smoke from Canadian wildfires continued to disrupt daily life. The Air Quality Index in Detroit spiked to 337, a measure that placed the city’s air in the “hazardous” category; in Cleveland it reached 272. Established by the Environmental Protection Agency, the index runs from 0 to 500; the higher the number, the greater the level of air pollution. While the worst air quality was centered on areas around the Great Lakes, dangerously smoky conditions stretched from Iowa to Pennsylvania and as far south as Tennessee. Mayor Brandon Johnson of Chicago warned residents — especially children, older people and those with heart or lung disease — to stay indoors if possible, or to wear masks if they had to be outside, to avoid the worst effects of the smoky air. And in New York, Gov. Kathy Hochul said early Wednesday that air quality in the western and central parts of the state was already at unhealthy levels. The day before, Mayor Eric Adams of New York City urged people to take a mask if they leave home. We’re tracking the smoke as it moves across North America. Tap the link in our bio to see the air quality levels in your area and to read advice on how to stay safe. Photos by Kamil Krzaczynski/AFP via Getty Images in Chicago; Nick Rohlman/The Gazette via @apnews in Cedar Rapids, Iowa; Kiichiro Sato/@apnews in Chicago; Neil Blake/MLive.com/The Grand Rapids Press via @apnews in Grand Rapids, Michigan; and Jeff Roberson/@apnews in St. Louis」6月28日 23時03分