Charcoal counts and soil, water, and reservoir sediment-core geochemistry were characterized eight months after the November 2021 Muckamuck Fire in the North Fork Salmon Creek basin and Conconully Reservoir, Washington, the receiving water body. Parameters include sand-sized charcoal, Cesium-137, excess Lead-210, aqueous and solid-phase elemental chemistry, and polycyclic aromatic hydrocarbon concentrations (PAHs). Grain size and carbon were measured in select intervals in the longest sediment core.

After the CZU Wildfire in August 2020, stream sediment (7 burned, 1 unburned drainages), airborne ash, in situ ash, and regolith were collected from August 2020 to August 2023 to characterize wildfire effects. Solid-phase parameters include sand-sized charcoal counts, total carbon (TC), total inorganic carbon (TIC), total organic carbon (TOC), bulk stable carbon 13/12 isotope ratios (d13C), bulk stable nitrogen 15/14 isotope ratios (d15N), and concentrations of 60 elements in the less than 63 micron fine ...

Sediment samples were collected from Los Padres reservoir in the Carmel River watershed, central California coast, between July 11 and 17, 2017, using a CME-45 barge-mounted drill rig, to characterize sedimentary properties in the reservoir deposits following the Soberanes Fire of 2016 and high river flows in winter 2017. Borehole samples were recovered using direct push coring with an Osterberg piston sampler operated by Taber Drilling Company of Sacramento, California, and overseen by AECOM, Inc. Sediment ...

Seventy-six parent and alkylated polycyclic aromatic hydrocarbons (PAHs) were quantified in wildfire ash (airborne and in situ), stream sediment, steelhead, crayfish, and marine mussels after the August 2020 CZU Lightning Complex Wildfire and at regular intervals over three years.