Water chemistry and geochemical tracer dataset from the Tama River Watershed, Japan (2022)

This dataset contains results for water chemistry and geological tracers from river water, backwater, spring water, and rainwater collected from the Tama River in Japan. The samples were collected between February and November 2022. Measurements include pH, electrical conductivity, dissolved oxygen, and water temperature, as well as major ions (Na+, K+, Mg2+, Ca2+, Cl-, SO42-, HCO3-), nutrients (NO3-, NH4+, PO43-, DSi), and geological tracers (222Rn, δ2H & δ18O-H2O, δ15N & δ18O-NO3, CDOM).