Selenium, Arsenic, Cadmium data daily concentration for USGS stream sites. This dataset is associated with the following publication: Beyene, M., S. Leibowitz, C. Dunn, and K. Bladon. To Burn or Not to Burn: An Empirical Assessment of the Impacts of Wildfires and Prescribed Fires on Trace Element Concentrations in Western US Streams. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier BV, AMSTERDAM, NETHERLANDS, 863(10): 160731, (2023).