Geochemical behavior assessment and apportionment of heavy metal contaminants in the bottom sediments of lower reach of Changiang River

Auteur(s) et Affiliation(s)

SONG, Y.

Inst. of Surficial Geochemistry, School of Earth Sciences and Engineering, Univ., Nanjing, Chine

Discipline of Chemistry, Fac. of Science and Technology, Queensland Univ., Brisbane, Australie

JI, J.

Inst. of Surficial Geochemistry, School of Earth Sciences and Engineering, Univ., Nanjing, Chine

YANG, Z.

School of Earth Sciences and Resources, China Univ. of Geosciences, Beijing, Chine

YUAN, X.

College of Environment and Engineering, Hohai Univ., Nanjing, Chine

MAO, C.

Inst. of Surficial Geochemistry, School of Earth Sciences and Engineering, Univ., Nanjing, Chine

FROST, R.L.

Discipline of Chemistry, Fac. of Science and Technology, Queensland Univ., Brisbane, Australie

AYOKO, G.A.

Discipline of Chemistry, Fac. of Science and Technology, Queensland Univ., Brisbane, Australie

Description :
From sediment samples collected in the lower reach of Changjiang River (from Nanjing to Shanghai), the AA. examine the correlation between heavy metals and geochemical indices, including Fe2O3, Al2O3, total organic carbon (TOC) and black carbon (BC), as well as magnetic susceptibility (MS). Using these indices they investigate the contamination characteristics of heavy metals in the sediments with Principal Component Analysis (PCA). The results indicate that the combination of geochemical and multivariable statistical methods clearly characterizes the geochemistry of heavy metals in sediment of the lower reaches of the Changjiang River and suggests that power plants are the main source of heavy metal pollution.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2011, vol. 85, n°. 1, p. 73-81, nombre de pages : 9, Références bibliographiques : 1,5 p.

Date :
2011

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

Langue :
Anglais