| Authors: |
Cravotta CA 3rd; U.S. Geological Survey, Pennsylvania Water Science Center, New Cumberland, PA, United States of America. Electronic address: cravotta@usgs.gov., Tasker TL; Saint Francis University, Loretto, PA, United States of America., Smyntek PM; Saint Vincent College, Latrobe, PA, United States of America., Blomquist JD; U.S. Geological Survey, Maryland-Delaware-District of Columbia Water Science Center, Catonsville, MD, United States of America., Clune JW; U.S. Geological Survey, Pennsylvania Water Science Center, Williamsport, PA, United States of America., Zhang Q; University of Maryland Center for Environmental Science, USEPA Chesapeake Bay Program, Annapolis, MD, United States of America., Schmadel NM; U.S. Geological Survey, Oregon Water Science Center, Portland, OR, United States of America., Schmer NK; U.S. Geological Survey, Pennsylvania Water Science Center, Bridgeville, PA, United States of America. |