Wang Jie, Liu Guijian, Zhang Jiamei, Liu Houqi, Lam Paul K S
CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China.
State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi, 710075, China.
Environ Sci Pollut Res Int. 2016 Dec;23(23):23533-23545. doi: 10.1007/s11356-016-7587-z. Epub 2016 Sep 10.
An approximately 59-year (1955-2014) sedimentary record of metal elements (Cu, Pb, Zn, Ni, Co, Mn, and Fe) in a sediment core, collected from the Huaihe River, Huainan City, Anhui Province, China, was reconstructed by using Pb geochronology. Copper, Zn, Ni, Co, and Mn evaluated by enrichment factor (EF) indicated minor contamination due to water pollution accidents of the Huaihe River that occurred in 1990s and 2004. Lead presented the most severe pollution among the metals studied, especially during 1957-1974. The use of leaded petrol and atmospheric deposition of coal combustion flue gases could have contributed to Pb contamination. In spite of the general good quality (mean sediment pollution index (SPI) 35.69) of the sediment core evaluated by SPI based on the principal component analysis, worse sediment qualities in the upper section (<6 cm, 2004) were still observed, suggesting intensive human activities causing the increasing concentrations of metals in recent decades.
利用铅地质年代学重建了取自中国安徽省淮南市淮河的一个沉积岩芯中金属元素（铜、铅、锌、镍、钴、锰和铁）约59年（1955 - 2014年）的沉积记录。通过富集因子（EF）评估的铜、锌、镍、钴和锰表明，20世纪90年代和2004年淮河发生的水污染事故造成了轻微污染。在所研究的金属中，铅污染最为严重，尤其是在1957 - 1974年期间。含铅汽油的使用和煤炭燃烧烟气的大气沉降可能导致了铅污染。尽管基于主成分分析用沉积物污染指数（SPI）评估的沉积岩芯总体质量良好（平均SPI为35.69），但仍观察到上部（<6厘米，2004年）沉积物质量较差，这表明近几十年来人类活动加剧导致金属浓度增加。
