| Relationship between heavy metals and polycyclic aromatic hydrocarbons in the multi-phases of Nanhu Lake, China |
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| 作者姓名： | Yu LI Xiaoli WANG Yuhua WU Mao YUAN Shuhai GUO |
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| 作者单位： | [1]Department of Environmental Science, College of Environment and Resources, Jilin University, Changchun 166226, China [2]Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China |
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| 摘 要： | Heavy metals （HMs） and polycyclic aromatic hydrocarbons （PAHs） are two sorts of important pollutants, which were frequently detected in natural aquatic environments at the same time. Surfacial sediments （SSs）, suspended particulates （SPs） and natural surface coatings （NSCs） are recognized as the key solid sinks and sources of heavy metals （HMs） and organic materials （OMs） in natural water systems, playing critical roles in the cycling and transformation of pollutants. The behaviors of HMs in the multi-phases （SSs, SPs and NSCs） have been well investigated, but less reports on those of PAHs, especially on those of HMs and PAHs simultaneously in the multi-phases. Hence, the relationship between HMs （Pb, Cd and Cu） and PAHs （fluorene, phenanthrene, anthracene and pyrene） in the multi-phases of Nanhu Lake in Changchun, China, was studied in this study using methods of acid digestion and extraction, in order to reveal the combined pollution of HMs and PAHs in Nanhu Lake. The information indicated that HMs and PAHs have the similar distribution patterns in the multi-phases of Nanhu Lake, with increasing levels of riMs and PAHs in the SSs, SPs and NSCs. And the enrichment capacities of SPs and NSCs for HMs and PAHs in the water were similar to each other and much greater than that of SSs, implying that SPs and NSCs contributed more to the transference and transformation of HMs and PAHs in the aquatic environments. The relationship between HMs and PAHs has been analyzed by SPSS statistical analysis, and the results showed that the significant correlation of riMs and PAHs was found in the SSs at the confidence level of p = 0.05, but Pb, Cd or Cu had no correlation with any monomer of PAHs in the SPs or NSCs, highlighting the existence of combined pollution of HMs and PAHs in SSs. This was partly due to the relative lability of SPs or NSCs compared to SSs resulting from the water quality of being varied.
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| 关 键 词： | 多环芳烃 重金属 环境污染 PAHs 水污染化学 |
Relationship between heavy metals and polycyclic aromatic hydrocarbons in the multi-phases of Nanhu Lake, China |
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| Yu LI Xiaoli WANG Yuhua WU Mao YUAN Shuhai GUO.Relationship between heavy metals and polycyclic aromatic hydrocarbons in the multi-phases of Nanhu Lake, China[J].Chinese Journal of Geochemistry,2006,25(B08):201-201. |
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| Abstract: | |
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| Keywords: | polycyclic aromatic hydrocarbon heavy metal combined pollution surfacial sediment |
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