Concentration of heavy metals in the modern flood slackwater deposits along the upper Hanjiang River valley, China

Auteur(s) et Affiliation(s)

GUO, Y.

Dept. of Geography, Shaanxi Normal Univ., Xi'an, Chine

HUANG, C.C.

Dept. of Geography, Shaanxi Normal Univ., Xi'an, Chine

PANG, J.

Dept. of Geography, Shaanxi Normal Univ., Xi'an, Chine

ZHA, X.

Dept. of Geography, Shaanxi Normal Univ., Xi'an, Chine

LI, X.

Dept. of Geography, Shaanxi Normal Univ., Xi'an, Chine

ZHANG, Y.

Dept. of Geography, Shaanxi Normal Univ., Xi'an, Chine

Description :
Modern flood slackwater deposits (SWD) were systematically collected after the great flood events which occurred on 19 July, 2010 and on 19 September, 2011 downstream of Ankang City along the upper Hanjiang River valley. Concentrations of heavy metals (Co, Cr, Cu, Ni, Pb, Zn, Ba, Mn and V) in the fresh flood SWD were determined. Enrichment Factor (EF) and Index of Geoaccumulation (Igeo) were employed for heavy metal assessment. It is highlighted that the source of Co, Cr, Ba and V is mainly from anthropogenic inputs, but the source of Cu, Ni, Pb, Zn and Mn is mixed from natural and anthropogenic inputs. Concentration of heavy metals in the downstream of Ankang city is higher than that in the upstream. These results would help to establish non-point sources of heavy metal pollution and provide important information for water conservation strategy during the great flood periods in the upper Hanjiang River basin.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2014, vol. 116, p. 123-131, nombre de pages : 9, Références bibliographiques : 1 p.

Date :
2014

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais