| Parent and alkylated polycyclic aromatic hydrocarbons (PAHs) and per- and polyfluoroalkyl substances (PFAS) in north San Francisco Bay, Napa River, and Sonoma Creek in 2018 and 2019 |
Vanveen grab sampler |
Sediment grain-size distributions, stable carbon isotope ratios (d13C), total carbon to total nitrogen ratios (C:N), short-lived radionuclides (Beryllium-7, Cesium-137, and Lead-210), concentrations of 76 parent and alkylated polycyclic aromatic hydrocarbons (PAHs) and concentrations of 33 per- and polyfluoroalkyl substances (PFAS) were measured in the northern reach of San Francisco Bay (San Pablo and Suisun Bays), and in stream beds of the lower reaches of Napa River and Sonoma Creek, 5 months and 20 months after the 2017 Atlas and Nuns wildfires. New sites for sediment geochemistry analyses added 20 months post-fire included the lower reaches of Petaluma Creek and Suisun Slough, and in marsh sediment on Napa River and Sonoma Creek. |
Renee K Takesue |
| Parent and alkylated polycyclic aromatic hydrocarbons (PAHs) and per- and polyfluoroalkyl substances (PFAS) in north San Francisco Bay, Napa River, and Sonoma Creek in 2018 and 2019 |
vibracore |
Sediment grain-size distributions, stable carbon isotope ratios (d13C), total carbon to total nitrogen ratios (C:N), short-lived radionuclides (Beryllium-7, Cesium-137, and Lead-210), concentrations of 76 parent and alkylated polycyclic aromatic hydrocarbons (PAHs) and concentrations of 33 per- and polyfluoroalkyl substances (PFAS) were measured in the northern reach of San Francisco Bay (San Pablo and Suisun Bays), and in stream beds of the lower reaches of Napa River and Sonoma Creek, 5 months and 20 months after the 2017 Atlas and Nuns wildfires. New sites for sediment geochemistry analyses added 20 months post-fire included the lower reaches of Petaluma Creek and Suisun Slough, and in marsh sediment on Napa River and Sonoma Creek. |
Renee K Takesue |
| Analysis for estimated percent sand in cores taken from San Francisco Bay, California, 1990-2016 |
vibracore |
Sediment analysis of cores collected in San Francisco Bay, San Pablo Bay, and the Carquinez Strait and Suisun Bay, California from 1990 to 2016 for percent sand. Handwritten core logs, x-radiographs, and the cores themselves, were examined for the presence of sand. |
Theresa Fregoso |
| 10 cm intervals of percent sand content for 186 sediment cores collected in San Francisco Bay, CA, 1990-2016 |
vibracore |
Percentage of sand content provided in 10 cm intervals down the length of 186 sediment cores collected in San Francisco Bay, California in 1990-91, 2000, 2006, and 2016. Sediment data were obtained from a combination of gravity, box, and push cores ranging in length from 14 to 360 cm. Sand content percentages were obtained from a compilation of visual analyses, descriptive and graphical core logs, and grain size measurements. For the purposes of modeling variability in sand content with depth beneath the San Francisco Bay floor, percent sand content values were converted from variable layer thicknesses based upon natural breaks within the core, to regularly spaced 10-cm intervals using a weighted average. |
Theresa Fregoso |
