title: Characterization of surface sediments from the Beijing-Hangzhou Grand Canal (Zaozhuang section), China: assessment of beryllium enrichment, biological effect, and mobility.
abstract: The South-to-North Water Diversion Project is one of the world's largest water diversion projects, benefiting seven million people in China. The Zaozhuang section of the Beijing-Hangzhou Grand Canal is an important part of this project. This paper investigated the enrichment, biological effect, and mobility of beryllium (Be) in surface sediments of the Zaozhuang section. Results showed that high values were found in Tai'erzhuang District, Zaozhuang city, and the areas near the inlet of the Nansihu Lake, which might have been influenced by local human activities including metallurgy, burning of fossil fuels, and transportation. Four geochemical fractions of Be were obtained: acid-soluble fraction, reducible fraction, oxidizable fraction, and residual fraction. The non-residual fractions (the sum of the first three) accounted for 72.5 ∼ 96.1 % of the total amount of Be. Acid-soluble fraction might be mainly influenced by human activities, with the strongest mobility and bio-availability, accounting for 4.1 ∼ 44.7 % of the total amount, with an average of 20.2 %. Enrichment factor (EF) showed minor to moderate enrichment in some regions; adverse effect index (AEI) also showed that there were high levels of Be in some regions, which might have negative impacts on organisms. Generally, mobility, EF, and AEI of elements are carried out separately. But the results of this study indicated that a comprehensive assessment on the enrichment, mobility, and biological effects of Be caused by human activities is necessary in understanding the environmental risks of Be.
authors.affiliation: College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong, 277160, China. wzhuang@yic.ac.cn.|Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong, 264003, China. wzhuang@yic.ac.cn.
authors.forename: Wen
authors.initials: W
authors.lastname: Zhuang
authors.affiliation: College of Life Sciences, Zaozhuang University, Zaozhuang, Shandong, 277160, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Chen
authors.affiliation: Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong, 264003, China.
authors.forename: Xuelu
authors.initials: X
authors.lastname: Gao
authors.affiliation: Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong, 264003, China.
authors.forename: Fengxia
authors.initials: F
authors.lastname: Zhou
authors.affiliation: College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong, 277160, China.
authors.forename: Mantang
authors.initials: M
authors.lastname: Wang
authors.affiliation: College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong, 277160, China.
authors.forename: Yongxia
authors.initials: Y
authors.lastname: Liu
mesh_terms: D000068476:Beijing; D001608:Beryllium / Q000032:analysis* / Q000737:chemistry*; D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*
chemical_list: D001608:Beryllium
keywords: Adverse effect index; Enrichment factor; Fraction; Sediment; The Beijing-Hangzhou Grand Canal