Water Circulation and Marine Environment in the Antarctic Traced by Speciation of ¹²⁹I and ¹²⁷I.

ABSTRACT: Emissions of anthropogenic ¹²⁹I from human nuclear activities are now detected in the surface water of the Antarctic seas. Surface seawater samples from the Drake Passage, Bellingshausen, Amundsen, and Ross Seas were analyzed for total ¹²⁹I and ¹²⁷I, as well as for iodide and iodate of these two isotopes. The variability of ¹²⁷I and ¹²⁹I concentrations and their species (¹²⁷I^-/¹²⁷IO₃^-, ¹²⁹I^-/¹²⁹IO₃^-) suggest limited environmental impact where ((1.15-3.15) × 10⁶ atoms/L for ¹²⁹I concentration and (0.61-1.98) × 10^-11 for ¹²⁹I/¹²⁷I atomic ratios are the lowest ones compared to

SUBMITTER: Xing S 

PROVIDER: S-EPMC5552787 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature