Arsenic in waters, soils, sediments, and biota from Mexico: An environmental review

摘要: Abstract We reviewed over 226 studies dealing with arsenic (As) in water bodies (124 sites or regions; 5,834 samples), soils (44; 2,700), sediments (56; 765), rocks (6; 85), mine waste (25; 582), continental plants (17 (77 species); 571), animals (10 (32 3,525) and aquatic organisms (27 (100 species) 2,417) Mexico. In general, higher As concentrations were associated specific regions the states of Hidalgo (21 sites), San Luis Potosi (SLP) (19), Baja California Sur (15), Zacatecas (5), Morelos (4). High levels have been detected drinking certain locations Coahuila (up to 435 μg L−1) Sonora 1004 μg L−1); surficial Puebla 780 μg L−1) Matehuala, SLP 8684 μg L−1); groundwater 16,000 μg L−1) Morelia, Michoacan 1506,000 μg L−1); 27,945 μg g−1) Xichu mining area, Guanajuato 62,302 μg g−1); Zimapan, 11,810 μg g−1) 28,600 μg g−1). contaminated arid semi-arid areas, P. laevigata A. farnesiana exhibit highest levels. These findings emphasize human environmental risks presence such regions. A synthesis available techniques for removal remediation technologies is given. The occurrence, origin (geogenic, thermal, anthropogenic) evolution summarized. Also, mobilization mechanisms explain variability environments are concisely For future research, a stratified regional sampling proposed which prioritizes critical waters, sediments, biota, considering subpopulation foods from agriculture, livestock, seafood. It concluded that more detailed comprehensive concerning pollution levels, as well trends, transfer, speciation, toxic effects still required.