TY - RPRT TI - Resolving atmospheric mercury loading and source trends from isotopic records of remote North American lake sediments AU - Ryan F. Lepak AU - Sarah E. Janssen AU - Daniel R. Engstrom AU - David P. Krabbenhoft AU - Michael T. Tate AU - Runsheng Yin AU - William F. Fitzgerald AU - Sonia A. Nagorski AU - James P. Hurley PY - 2020 DO - 10.1021/acs.est.0c00579 UR - https://pubs.usgs.gov/publication/70283019 ID - 70283019 ER -