TY - JOUR
T1 - Trace elements in the marine sediments of the la Paz Lagoon, Baja California Peninsula, Mexico
T2 - Pollution status in 2013
AU - Pérez-Tribouillier, Habacuc
AU - Shumilin, Evgueni
AU - Rodríguez-Figueroa, Griselda Margarita
N1 - Publisher Copyright:
© 2015 Springer Science+Business Media New York.
PY - 2015/7/8
Y1 - 2015/7/8
N2 - To determine the actual concentrations of trace elements in surface sediments from the La Paz Lagoon, as well as their associations and possible origins, 91 sediment samples were analyzed for more than 50 elements using a combination of ICP-MS and ICP-AES. The results of a principal component analysis are used to distinguish four associative groups within the elements. Natural enrichment of As, Cd and U occurs due to the supply of weathered phosphorites from the El Cien formation located to the north-west of the lagoon. Sediment quality indices for potentially toxic trace elements do not show any probable impact on the biota of the lagoon. Only the concentrations of As in 30 % of the stations and Cu in 20 % of them exceed related effect range low levels. The highest concentration of Pb (36.8 mg kg-1) was measured in the sediments near the City of La Paz.
AB - To determine the actual concentrations of trace elements in surface sediments from the La Paz Lagoon, as well as their associations and possible origins, 91 sediment samples were analyzed for more than 50 elements using a combination of ICP-MS and ICP-AES. The results of a principal component analysis are used to distinguish four associative groups within the elements. Natural enrichment of As, Cd and U occurs due to the supply of weathered phosphorites from the El Cien formation located to the north-west of the lagoon. Sediment quality indices for potentially toxic trace elements do not show any probable impact on the biota of the lagoon. Only the concentrations of As in 30 % of the stations and Cu in 20 % of them exceed related effect range low levels. The highest concentration of Pb (36.8 mg kg-1) was measured in the sediments near the City of La Paz.
KW - Baja California peninsula
KW - La Paz Lagoon
KW - Pollution status
KW - Sediments
KW - Trace elements
UR - http://www.scopus.com/inward/record.url?scp=84930542373&partnerID=8YFLogxK
U2 - 10.1007/s00128-015-1520-x
DO - 10.1007/s00128-015-1520-x
M3 - Artículo
SN - 0007-4861
VL - 95
SP - 61
EP - 66
JO - Bulletin of Environmental Contamination and Toxicology
JF - Bulletin of Environmental Contamination and Toxicology
IS - 1
ER -