Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1007/s10661-015-4359-z
Volltext Shareable Link
Titel (primär) Assessment of heavy metals in sediment of Aguamilpa Dam, Mexico
Autor Rangel-Peraza, J.G.; de Anda, J.; González-Farías, F.A.; Rode, M.; Sanhouse-García, A.; Bustos-Terrones, Y.A.
Journal / Serie Environmental Monitoring and Assessment
Erscheinungsjahr 2015
Department ASAM
Band/Volume 187
Heft 3
Seite von art. 134
Sprache englisch
Keywords Sediments; Heavy metals; Aguamilpa reservoir; Geo-accumulation Index; Pollution load index; Enrichment factor
UFZ Querschnittsthemen RU2;
Abstract The Aguamilpa Dam is part of the reservoir cascade system formed by four reservoirs in the middle and lower part of the Santiago River. For decades, this system has received urban and industrial wastewater from the metropolitan area of Guadalajara and the runoff of agricultural fields located in the river basin. The present study was carried out to obtain a preliminary assessment on the concentration distribution of heavy metals (Al, Ba, Cd, Cr, Cu, Fe, Hg, Mg, Ni, Pb, and Zn) in surface sediments of the Aguamilpa reservoir collected from 10 sampling stations. The metal concentrations (mg kg−1) in the sampling stations ranged as follows: Al, 27,600–7760; Ba, 190.0–15.9; Cd, 0.27–0.02; Cr, 18.30–0.22; Cu, 60.80–0.79; Fe, 15,900–4740; Hg, 0.04–0.01; Mg, 7590–8.05; Ni, 189.00–0.24; Pb, 13.6–1.64; and Zn, 51.8–14.8. Significant spatial variation in concentrations was observed for Al, Fe, and Pb. Sediment pollution was evaluated using the enrichment factor, the geo-accumulation index, the pollution load index, and sediment quality guidelines. Based on geo-accumulation and pollution load indexes, Aguamilpa sediments were found, in some sampling stations, as unpolluted to moderately polluted with Ni, Cd, Cu, and Mg. Enrichment factors showed that Cd is highly related to agricultural activities that take place in the surrounding areas of the Aguamilpa reservoir. Despite these results, none of the heavy metals evaluated exceeded international concentrations limits, indicating that the Aguamilpa reservoir surface sediments are not contaminated.
dauerhafte UFZ-Verlinkung
Rangel-Peraza, J.G., de Anda, J., González-Farías, F.A., Rode, M., Sanhouse-García, A., Bustos-Terrones, Y.A. (2015):
Assessment of heavy metals in sediment of Aguamilpa Dam, Mexico
Environ. Monit. Assess. 187 (3), art. 134