Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8871544 | Marine Pollution Bulletin | 2018 | 14 Pages |
Abstract
We investigated the influence of the intertidal geothermal hot spring (GHS) on the biogeochemistry of trace elements in Santispac Bight, BahÃa Concepción (Gulf of California). The geothermal fluids were enriched in As and Hg mainly in ionic form. The suspended particulate matter of the GHS had elevated enrichment factor (EF) >Â 1 of As, Bi, Cd, Co, Cu, Mn, Mo, Sb, Sn, Sr, Ti, U and Zn. The sediment core from GHS1 had high concentration of As, Hg, Corg, S, V, Mo, and U and the extremely high EF of these elements at 8Â cm of the core. The maximum bioaccumulation of As and Hg was in seaweeds Sargassum sinicola collected near the GHS2. The results confirm the input of trace elements to the coastal zone in BahÃa Concepción from geothermal fluids and the evident modification of the chemical composition of the adjacent marine environment.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Oceanography
Authors
MarÃa Luisa Leal-Acosta, Evgueni Shumilin, Nicolai Mirlean, Elena Lounejeva Baturina, Ignacio Sánchez-RodrÃguez, Francisco Delgadillo-Hinojosa, José Borges-Souza,