Trace metals in the surface sediments of the intertidal Jiaozhou Bay, China: Sources and contamination assessment.

Abstract:

:The major (Al) and trace metal (Cu, Pb, Zn, Cr, Cd, and As) concentrations in 29 surface sediment samples from the intertidal Jiaozhou Bay (JZB) are evaluated to assess the contamination level. The results show that the overall sediment quality in the area has been obviously impacted by trace metal contamination. The geoaccumulation index and the enrichment factor values indicate that no Cr or Cu contamination has occurred on the whole, only a few stations have been polluted by As, and some areas have been polluted by Cd, Pb, and Zn. Principal component analysis suggests that the Cu, Pb, Zn, and Cd are derived from anthropogenic inputs and that Cr, As, Cu, and Zn are influenced by natural weathering processes. Cu and Zn may originate from both natural and anthropogenic sources. The contamination in the northeastern JZB is higher than that in other areas of the bay.

journal_name

Mar Pollut Bull

authors

Xu F,Qiu L,Cao Y,Huang J,Liu Z,Tian X,Li A,Yin X

doi

10.1016/j.marpolbul.2016.01.019

subject

Has Abstract

pub_date

2016-03-15 00:00:00

pages

371-8

issue

1-2

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(16)30017-0

journal_volume

104

pub_type

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