Historical record of metal accumulation and lead source in the southeastern coastal region of Korea
| Autor: | Seung Woon Jung, Dhongil Lim, Sun Mee Kang, Hoi Soo Jung, Man Sik Choi, Jinyong Choi |
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| Rok vydání: | 2013 |
| Předmět: |
Pollution
Geologic Sediments Isotope media_common.quotation_subject Mineralogy Heavy metals Aquatic Science Particulates Oceanography Metal Lead Metals visual_art Environmental chemistry Republic of Korea Water Pollution Chemical visual_art.visual_art_medium Sedimentary rock Leaching (metallurgy) Water Pollutants Chemical Historical record Geology Environmental Monitoring media_common |
| Zdroj: | Marine Pollution Bulletin. 74:441-445 |
| ISSN: | 0025-326X |
| DOI: | 10.1016/j.marpolbul.2013.06.018 |
| Popis: | Concentrations of heavy metals and Pb isotopes were measured in the 1-M HCl leaching fraction of core sediments spanning the last 400 years. This sedimentary record of pollution history in metal concentrations shows a good correlation with the increases in industrialization, urbanization, and energy consumption since 1901s. Notably, the Pb concentration and the (207)Pb/(206)Pb and (208)Pb/(206)Pb ratios were constant before the 1910s (16.7 μg/g, 0.844, and 2.098, respectively), whereas they increased steadily up to 21.9 μg/g, 0.848, and 2.101 after the 1910s. The correlations between Pb isotope ratios ((206)Pb, (207)Pb, and (208)Pb) showed different linear regression trends for core sediments before and after the 1910s, indicating differences in Pb sources. Our interpretation suggests that the source of anthropogenic Pb in Korean coastal region and the Yellow Sea shelf was presumed to be Chinese coals or ores, which have also played a major role as sources of atmospheric particulate Pb. |
| Databáze: | OpenAIRE |
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