Hundreds of wildfires are burning in California, tens of thousands of people are under evacuation orders, and the governor is calling in help from 10 U.S. states, Canada and Australia to tame the blazes that have scorched an area the size of Rhode Island.
, Idaho, Nevada, Arizona, Texas, New Mexico and Wyoming, according to the National Wildfire Coordinating Group on Saturday.
"The heat dome that we experienced over the course of last week has not only impacted the state of California – it’s impacted the entire western United States," Newsom said."As a consequence of that, our mutual aid that goes outside the state of California has also been stretched." On Friday, Gov. Jared Polis activated the Colorado National Guard to assist the State Emergency Operations Center and incident commanders fighting wildfires.Smoke from the fires is making the air quality in parts of California some of the worst in the world. And people in the area might not be able to smell the dangerous pollutants in the air.
Air quality experts measure the amount of fine particulate matter in the air. According to the U.S. Environmental Protection Agency, those particles come from a variety of sources, including fires. Smoke from fires can send large amounts of PM 2.5 into the air and over large areas. "Whenever things burn there’s a mixture of gases and particles," said University of California, San Francisco pulmonologist Dr. John Balmes, an expert on the respiratory and cardiovascular effects of air pollutants."When you smell smoke, you are smelling the gases in the air, not PM 2.5 . . . They go hand-in-hand near the fire source, but the particulates travel in the upper atmosphere."Your coronavirus mask may not protect you, unless you have a mask designed to filter PM 2.
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