Element variability in lacustrine systems of Terra Nova Bay  (Antarctica)  and concentration evolution in surface waters

Zelano, Isabella; Malandrino, Mery; Giacomino, Agnese; Buoso, Sandro; Conca, Eleonora; Sivry, Yann; Benedetti, Marc F.; Abollino, Ornella

doi:10.1016/j.chemosphere.2017.04.005

Cited by 13 publications

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References 33 publications

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“…The phosphate level found ranged from 1.0 to 2.0 μM, the SiO 2 concentration ranged from 5.7 to 303.3 μM and TP ranged from 1.9 to 2.2 μM. These results are in agreement with other nutrient values found in a lake on the James Ross Archipelago, Antarctic Peninsula (Lecomte et al, 2016) and Terra Nova Bay (Zelano et al, 2017); and whose concentrations are most likely linked to the scarce biological activity in inland water (Zelano et al, 2017). The Automatic Water Autosampler onboard UAVs contributes towards improving the information about chemical composition of the water masses of Deception Island.…”

Section: Resultssupporting

confidence: 89%

A Novel Automatic Water Autosampler Operated From UAVs for Determining Dissolved Trace Elements

et al. 2022

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Monitoring water systems under extreme conditions or in remote areas poses a risk to scientists and staff involved, and can also result in disturbances to the local flora and fauna. In order to overcome these limitations, new techniques are being developed with the aim to gain more insight into how geochemical pathways of trace elements regulate the functioning of the ocean. Here, we present the first trace metals and inorganic nutrients concentrations measured in dissolved (<0.22 µm) surface water samples collected in the Antarctic by using an Automatic Water Autosampler (AWA) system onboard an unmanned aerial vehicle (UAV). The AWA system has been used to chemically quantify the composition of the water masses (lake and coastal water) of Deception Island (South Shetland Islands, Antarctica), with, for example, Pb values ranging from 0.01 to 0.25 nM in seawater and 1.20 to 2.11 nM in lake water. The results demonstrate the effectiveness of the AWA system in environmental studies that require the sampling of trace metals and nutrients without sample contamination.

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Section: Resultssupporting

confidence: 89%