The Massachusetts Department of Public Health has issued a statewide air quality alert due to smoke from Canadian wildfires. The alert is effective until 12 a.m. on Thursday [4]. This comes after heavy smoke from several large wildfires burning in Canada and Minnesota engulfed large areas of the Midwest and East Coast, as reported by CBS News [3].
The Boston Herald also noted that Massachusetts has issued an air quality alert due to Canadian wildfire smoke, causing haze that obscured the summer sun [5]. Meanwhile, msn.com provided similar information, stating that a statewide air quality alert is in effect through 12 a.m. Thursday [4] and that this situation was first reported on Boston.com [4].
The extent of the impact has been described by French officials who have issued an air quality alert due to a massive forest fire near Paris [6], which erupted on July 13. However, there is no mention in any of these sources of specific details about the intensity or duration of the smoke plumes from Canadian wildfires affecting Massachusetts.