Ordóñez Regil E, Almazán Torres MG, Fernández Valverde M. Evaluation of uranium and plutonium isotopes in marine samples from Veracruz coastline (Mexico).
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2022;
255:107040. [PMID:
36257188 DOI:
10.1016/j.jenvrad.2022.107040]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 09/01/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
Activity ratios (A.R.) of 234U/238U and activity concentration of 238+234U and 239+240Pu were measured in collected seawaters and sand beach samples from various locations along of littoral of Mexican state of Veracruz. Uranium and plutonium were separated and concentrated in a liquid-liquid partition chromatography, afterwards, detected and analyzed by means of alpha spectrometric technique. The 234U/238U activity ratio (AR) ranges from 0.72 to 1.11 in sand beach and from 0.77 to 1.22 in seawater. The activity concentration was found in sea water from 0.31 to 1.94 Bq/L for 234+238U and from 15 to 137 μBq/L for 239+240Pu, in sand beach samples was found to be from 0.64 to 3.86 Bq/kg for 234+238U and from 33 to 249 μBq/kg for 239+240Pu.
Collapse