TY - RPRT TI - Temporal concentrations of Quaternary ammonium compounds in wastewater treatment effluents during the COVID-19 pandemic, 2020–2021 AU - Michelle L. Hladik AU - Michael S. Gross AU - Gabrielle Pecora Black AU - Dana W. Kolpin AU - Jason R. Masoner AU - Patrick J. Phillips AU - Paul M. Bradley AU - Kelly L. Smalling PY - 2024 DO - 10.1016/j.chemosphere.2024.143753 UR - https://pubs.usgs.gov/publication/70261011 ID - 70261011 ER -