Abstract:
: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.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Katahira K,Moriwaki H,Kamura K,Yamazaki Hdoi
10.1080/09593330.2018.1478885subject
Has Abstractpub_date
2019-11-01 00:00:00pages
3473-3478issue
26eissn
0959-3330issn
1479-487Xjournal_volume
40pub_type
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