…空气质量警报现在生效到CDT周四早上6点…*什么…明尼苏达州污染控制机构扩大了细颗粒物污染的空气质量警报。空气质量指数(AQI)预计将达到红色或不健康类别。*在哪里……明尼苏达州中部。*当……到周四早上6点。*影响……Some members of the general public may experience health effects. 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 has moved into Minnesota this morning. The smoke will continue slowly moving south during the day Wednesday and will approach the Minnesota river valley by the evening. Smoke will gradually clear Friday morning. In addition, sunny skies, warm temperatures, low humidity, and light winds will produce an environment for Volatile Organic Compounds (VOC) and Oxides of Nitrogen (NOx) to react in the air to produce elevated levels of ozone Wednesday afternoon. Ozone will be elevated across the Twin Cities and Rochester during the afternoon hours, but will decrease in the evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... The general public should limit prolonged or heavy exertion. Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, should avoid 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. Keep windows closed overnight to prevent smoke from getting indoors. && 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.