Two-step extraction method for lead isotope fractionation to reveal anthropogenic lead pollution
| Autor: | Hideo Yamazaki, Kazuo Kamura, Kenshi Katahira, Hiroshi Moriwaki |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
China
Geologic Sediments 0208 environmental biotechnology Lead pollution Two step 02 engineering and technology 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Lead (geology) Isotope fractionation Isotopes Environmental Chemistry Aqua regia Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology Elution General Medicine 020801 environmental engineering chemistry Lead Environmental chemistry Environmental science Particle Extraction methods Environmental Monitoring |
| Zdroj: | Environmental technology. 40(26) |
| ISSN: | 1479-487X |
| Popis: | This study developed the 2-step extraction method which eluted the Pb adsorbing on the surface of sediments in the first solution by aqua regia and extracted the Pb absorbed inside particles into the second solution by mixed acid of nitric acid, hydrofluoric acid and hydrogen peroxide solution. We applied the method to sediments in the enclosed water area and found out that the isotope ratios of Pb in the second solution represented those of natural origin. This advantage of the method makes it possible to distinguish the Pb between natural origin and anthropogenic source on the basis of the isotope ratios. The results showed that the method was useful to discuss the Pb sources and that anthropogenic Pb in the sediment samples analysed was mainly derived from China because of transboundary air pollution. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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