A heavy curtain of toxic air hung over California's Yosemite National Park on Sunday as the Washburn Fire continued to burn out of control through parched terrain amid hot, dry weather.
PurpleAir’s numbers are measured in real-time . AirNow’s figures — which are based on Environmental Protection Agency standards — are calculated using a complex algorithm that “uses longer averages during periods of stable air quality and shorter averages when air quality is changing rapidly.” Results are updated hourly but delayed compared to PurpleAir.
PurpleAir sells its proprietary sensors to citizens and then uses the data from the monitors to track particulate pollution on a global scale. People can put them indoors or outdoors at their discretion. The sensors use a laser particle counter to measure the number of airborne particles and then employ an algorithm to calculate a mass concentration based on the count. They differ from the sensors used by AirNow, which measure particulate matter by drawing air through a filter and then weighing the filter.as of Sunday afternoon and was burning on the southern end of the park near the Mariposa Grove, threatening its 500 giant sequoias.
Indonesia Berita Terbaru, Indonesia Berita utama
Similar News:Anda juga dapat membaca berita serupa dengan ini yang kami kumpulkan dari sumber berita lain.
Washburn Fire near Yosemite’s Mariposa Grove now nearly 1,600 acresThe Washburn Fire burning near Yosemite National Park’s famed Mariposa Grove has grown to nearly 1,600 acres — threatening the park’s largest stand of sequoia trees.
Baca lebih lajut »
Yosemite's Washburn fire threatens hundreds of giant sequoia treesThe Washburn fire has now burnt more than 700 acres, threatening the giant sequoia trees in Yosemite National Park.
Baca lebih lajut »
Yosemite fire grows, prompts Bay Area air quality advisoryAs the Washburn Fire grows in the southern portion of Yosemite, the Bay Area is expected to face smoke from the wildfire. The Bay Area Air Quality Management District issued an air quality advisory for Monday, specifically for the North and East Bay.
Baca lebih lajut »
Growing Washburn Fire in Yosemite threatens sequoias, forces evacuationsThe largest grove of giant sequoias in Yosemite National Park remained closed Saturday as firefighters battled a blaze that threatened the gathering of the iconic trees and forced hundreds of campers to evacuate.
Baca lebih lajut »
Yosemite evacuates Wawona as Washburn Fire burns in famed groveThe Washburn Fire is burning in an area with 'significant' amounts of dead and downed trees.
Baca lebih lajut »
Washburn Fire: Yosemite's Highway 41 entrance closed, 703 acres charredUPDATE: The Washburn Fire is spreading quickly near the lower portion of the Mariposa Grove and has burned 703 acres as of 6:30 am Saturday, growing by 237 acres overnight.
Baca lebih lajut »