TY - RPRT TI - Using tree swallows to assess reductions in PCB exposure as a result of dredging at Great Lakes Restoration Initiative (GLRI) sites in the Upper Midwest, USA AU - Christine M. Custer AU - Thomas W. Custer AU - Paul M. Dummer PY - 2021 DO - 10.1007/s10646-021-02420-7 UR - https://pubs.usgs.gov/publication/70222482 ID - 70222482 ER -