Concentrations of per- and polyfluoroalkyl substances in quality-control samples prepared before and during groundwater sampling from the Great Miami buried-valley aquifer, southwestern Ohio, 2019–20

The U.S. Geological Survey (USGS), in cooperation with the Miami Conservancy District, Dayton, Ohio, in 2019 and 2020 investigated concentrations of per- and...美国地质调查局（U.S. Geological Survey, USGS）与位于俄亥俄州代顿市的迈阿密保护区合作，于2019年及2020年针对全氟类及……的浓度展开了调查研究。