Distribution of Pb isotopes in different chemical fractions in bed sediments from lower reaches of the Xiangjiang River, Hunan province of China
| Autor: | Bo Peng, Haisheng Chen, Xiaohong Fang, Shurong Xie, Sicheng Wu, Chunxia Jiang, Yanan Dai |
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| Rok vydání: | 2022 |
| Předmět: |
China
Geologic Sediments History Environmental Engineering Polymers and Plastics Pollution Industrial and Manufacturing Engineering Coal Isotopes Lead Rivers Metals Heavy Uranium Environmental Chemistry Business and International Management Waste Management and Disposal Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Science of The Total Environment. 829:154394 |
| ISSN: | 0048-9697 |
| Popis: | This paper reports Pb isotopes in different fractions following the three step BCR and 1 M HCl extractions on river sediments from lower reaches of the Xiangjiang river in China, and highlights the importance of Pb isotopes in heavy metal contamination assessment. Lead concentrations and Pb isotopes in bulk sediments and sediment fractions (leachates and residues) from the river were analysed using ICP-MS techniques. Results showed that sediments were highly enriched with Pb with enrichment factors5.5, while Pb in sediments was dominated by reducible and residual Pb fractions, residing mainly in Fe-oxide and silicate minerals. Pb isotopes in sediments was characterized by radiogenic Pb produced from the decay of uranium and thorium with |
| Databáze: | OpenAIRE |
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