．．．空气质量警报将持续到CDT周五早上6点…*什么…明尼苏达州污染控制机构发布了细颗粒物污染空气质量警报。空气质量指数(AQI)预计将达到橙色或敏感人群不健康的级别。*在哪里……明尼苏达州中南部。*当……到周五早上6点。*影响……Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, may experience health effects. * ADDITIONAL DETAILS...Smoke from Canadian wildfires will continue to move southwest today. Air quality has improved into the Yellow (moderate) category across east central Minnesota, and the air quality alert is no longer in effect for the Twin Cities metro. The alert remains in effect for south central Minnesota until Friday at 6 a.m. Air quality will be in the Orange (USG) catogery in this area, but smoke levels will gradually decrease Thursday and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, should limit prolonged or heavy exertion. Reduce or eliminate activities that contribute to air pollution, such as outdoor burning, and use of residential wood burning devices. Reduce vehicle trips and vehicle idling as much as possible. && For information on current air quality conditions in your area; and to sign up for daily air quality forecasts and alert; notifications by email, text message, phone, or the EPA AirNow; mobile app, visit https://www.pca.state.mn.us/air-water-land-; climate/current-air-quality-conditions. You can find additional; information about health and air quality at; https://www.pca.state.mn.us/air-water-land-climate/air-quality-; and-health.