Rare earth element enrichments in beach sediments from Santa Rosalia mining region, Mexico: An index-based environmental approach.
Mar Pollut Bull
; 174: 113271, 2022 Jan.
Article
em En
| MEDLINE
| ID: mdl-34968827
Baseline data on concentration, fractionation, pollution level and ecological risk index for seventeen beach sediments from Santa Rosalia mining region of Baja California Sur, Mexico were assessed. Higher concentrations of Rare Earth Elements (REEs) (mean. 341.49 µg/g) indicated that it is higher than most of the mining regions around the world. Normalization pattern showed enrichment of Eu (>4) and calculated geochemical indices revealed that light and middle REEs are moderately polluted with most of the sampling points located closer to the river discharge. Potential Ecological Risk Index (PERI) showed that Eu (20.2), Tb (20.88), and Lu (28.57) pose moderate ecological risk to the soil at selected stations (10, 11, 15 and 16) with a risk index value ranging from 245 to 359. Pearson's correlation matrix suggested that all REEs are highly correlated (r2 0.95) with each other having similar geochemical characteristics and indicating identical source due to continuous mining activity.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
/
Metais Terras Raras
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Mar Pollut Bull
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Reino Unido