Field deployments of diffusive gradients in thin-films (DGT) to the Antarctic nearshore environment, Casey and Wilkes, 2018

Published: 2019-08-14

This dataset describes physicochemical measurements and trace metal concentrations in the nearshore marine environment around Casey and Wilkes stations, collected between January and February 2018. They also describe the field deployments of the trace-metal passive sampling tools, and diffusive gradients in thin-films (DGT). Deployments occurred over the summer 2017/2018 season in the coastal region adjacent to Casey and Wilkes stations. Deployments of DGT to the nearshore marine environment was achieved with small watercraft and shallow (less than 5m deep) moorings, which were left in situ for 21-37 days, depending on the site. Trace metal concentrations provided are measured using diffusive gradients in thin-films (DGT) samplers deployed by small watercraft attached to shallow (<5m moorings) and left in situ for between 21 and 37 days. The metals concentrated to the DGT were assessed by inductively coupled plasma optical emission spectroscopy (ICP OES) and inductively coupled plasma mass spectroscopy (ICP MS) and the raw diluted concentrations, and processed calculated DGT-labile metal concentrations in the marine environment are provided.