Tritium-helium-3 and tritium-based groundwater-age estimates from analyses of groundwater samples from the Great Miami buried-valley aquifer, southwestern Ohio, 1999, 2000, 2019, and 2020

The U.S. Geological Survey (USGS) in cooperation with the Miami Conservancy District, Dayton, Ohio, in 2019 and 2020 investigated the occurrence of per- and...美国地质调查局（U.S. Geological Survey, USGS）与俄亥俄州代顿市迈阿密保护区管理区合作，于2019年和2020年针对……的发生情况展开了调查。