Lead (Pb) isotopes as a tracer of Pb origin in Yangtze River intertidal zone

Weiguo Zhang, Huan Feng, Jinna Chang, Jianguo Qu, Lizhong Yu

Research output: Contribution to journalArticleResearchpeer-review

38 Citations (Scopus)

Abstract

In order to investigate the source of Pb within the Yangtze River intertidal zone, studying Pb isotope ratios is a likely approach because the ratios of these Pb isotopes can be used to identify the natural or anthropogenic origin of Pb. In this study, a total of 59 surface sediment samples (< 5 cm) were collected during 2004 and 2005 from 26 sites in the Yangtze River intertidal zone. We measured the total Pb concentrations and Pb isotopes ( 204 Pb, 206 Pb, 207 Pb and 208 Pb) and found that the total Pb concentrations varied from 18.3 to 44.1 mg kg - 1 with an average concentration of 27.3 mg kg - 1 . The observed Pb isotope ratios, excluding one station near Shanghai Pudong Airport which is significantly influenced by anthropogenic sources, varied from 18.459 to 18.750 for 206 Pb/ 204 Pb, 15.628 to 15.728 for 207 Pb/ 204 Pb, and 38.715 to 39.213 for 208 Pb/ 204 Pb. This study shows that Pb found within the Yangtze River intertidal zone sediments was mainly from the catchment in the Yangtze River watershed. Significant Pb pollution was not discerned in the Yangtze River intertidal zone. However, Pb contamination in some localized areas was suggested by Pb enrichment factor (EF).

Original languageEnglish
Pages (from-to)257-263
Number of pages7
JournalChemical Geology
Volume257
Issue number3-4
DOIs
StatePublished - 15 Dec 2008

Fingerprint

lead isotope
intertidal environment
Isotopes
Rivers
tracer
isotope
river
Sediments
anthropogenic source
Watersheds
airport
Airports
Catchments
sediment
Pollution
Contamination
Lead
watershed
catchment
pollution

Keywords

  • Pb isotope ratio
  • Sediments
  • Tracer
  • Yangtze River intertidal zone

Cite this

Zhang, Weiguo ; Feng, Huan ; Chang, Jinna ; Qu, Jianguo ; Yu, Lizhong. / Lead (Pb) isotopes as a tracer of Pb origin in Yangtze River intertidal zone. In: Chemical Geology. 2008 ; Vol. 257, No. 3-4. pp. 257-263.
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Lead (Pb) isotopes as a tracer of Pb origin in Yangtze River intertidal zone. / Zhang, Weiguo; Feng, Huan; Chang, Jinna; Qu, Jianguo; Yu, Lizhong.

In: Chemical Geology, Vol. 257, No. 3-4, 15.12.2008, p. 257-263.

Research output: Contribution to journalArticleResearchpeer-review

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