1. School of STEM and Department of Atmospheric Sciences, University of Washington, Seattle, WA, USA
2. PNW Research Station, U.S. Forest Service, Seattle WA, USA
3. Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
4. School of Environmental and Forest Sciences, University of Washington Seattle, Seattle WA, USA
5. National Health and Environmental Effects Research Lab, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA