Tag: quality
Wildfire Smoke from Canada Reduces Air Quality in U.S. Midwest
Wildfire Smoke from Canada Blankets the U.S. Midwest in Haze of Bad Air Quality Winds from the northwest are blowing cool, dry air—but also wildfire smoke—into the U.S. Midwest from Canada By Meghan Bartels edited by Andrea Thompson Smoke from wildfires in Canada is drifting across the U.S. Midwest, leading to hazy skies and air…
Recent Canadian wildfires are record-breaking – and will threaten US air quality for days
After historic seasons in last two years, blazes continue trend of warm, dry conditions intensified by climate crisis Enormous early-season wildfires have erupted across the prairie provinces of Canada this week, taxing local emergency response and threatening a long stretch of dangerous air quality across eastern North America. The country’s largest fires – the Bird…
How Bad Air Quality Slows Down Marathon Runners
How Bad Air Quality Slows Down Marathon Runners Even modest amounts of air pollution may affect athletic performance, a new study finds By Claire Maldarelli edited by Tanya Lewis Participants run during the 2014 Beijing International Marathon in heavy smog. Even moderately poor air quality can affect finish times, a new study shows. Ask any…
D.C. crash investigators focus on altitude and vision quality of helicopter crew
Emma Bowman Three days after the midair collision of an Army helicopter and an American Airlines passenger plane near Ronald Reagan Washington National Airport, air safety investigators said on Saturday that they are still working to fill in some key details that could point to the cause of the crash. They are looking into whether…