Previous Article Next Article
  • Researchers use the ski lifts to carry equipment to sample air on the summit. A radon sensor travels to the peak of Mount Bachelor.
    Dan Jaffe/University of Washington Bothell
    Researchers use the ski lifts to carry equipment to sample air on the summit. A radon sensor travels to the peak of Mount Bachelor.
  • Co-author Lei Zhang wears a harness to access equipment at the Mount Bachelor Observatory in September 2015.
    Pao Baylon/University of Washington Bothell
    Co-author Lei Zhang wears a harness to access equipment at the Mount Bachelor Observatory in September 2015.
  • Top: The June 2015 measurement of ozone at the summit of Mount Bachelor (red dot) was significantly higher than any of the previous measurements. Middle: Differences from average ozone levels in June 2015, when
    Dan Jaffe/University of Washington Bothell
    Top: The June 2015 measurement of ozone at the summit of Mount Bachelor (red dot) was significantly higher than any of the previous measurements. Middle: Differences from average ozone levels in June 2015, when "the blob" was creating unusual conditions along the West Coast. The star shows the location of Mount Bachelor Observatory. Bottom: Typical June ozone concentration across the U.S.




Chat now!