Bioavailability Assessment of Heavy Metals Using Various Multi-Element Extractants in an Indigenous Zinc Smelting Contaminated Site, Southwestern China

被引:22
|
作者
Wang, Jun-Xian [1 ,2 ]
Xu, Da-Mao [1 ,3 ,4 ]
Fu, Rong-Bing [1 ,3 ,4 ]
Chen, Jia-Peng [3 ]
机构
[1] Tongji Univ, Ctr Environm Risk Management & Remediat Soil & Gr, Shanghai 200092, Peoples R China
[2] Univ Southern Calif, Viterbi Sch Engn, Los Angeles, CA 90089 USA
[3] Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resources Reuse, Shanghai 200092, Peoples R China
[4] Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China
关键词
indigenous smelting contaminated soils; heavy metals; bioavailability; fractionation; release kinetics; RISK-ASSESSMENT; SOILS; SPECIATION; BIOACCESSIBILITY; KINETICS; COUNTY; PLANTS; AREA;
D O I
10.3390/ijerph18168560
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Despite recent studies have investigated the strong influences of smelting activities on heavy metal contamination in the soil environment, little studies have been conducted on the current information about the potential environmental risks posed by toxic heavy metals in smelting contaminated sites. In the present study, a combination of the bioavailability, speciation, and release kinetics of toxic heavy metals in the indigenous zinc smelting contaminated soil were reliably used as an effective tool to support site risk assessment. The bioavailability results revealed that the bioavailable metal concentrations were intrinsically dependent on the types of chemical extractants. Interestingly, 0.02 mol/L EDTA + 0.5 mol/L CH3COONH4 was found to be the best extractant, which extracted 30.21% of Cu, 31.54% of Mn, 2.39% of Ni and 28.89% of Zn, respectively. The sequential extraction results suggested that Cd, Pb, and Zn were the most mobile elements, which would pose the potential risks to the environment. The correlation of metal bioavailability with their fractionation implied that the exchangeable metal fractions were easily extracted by CaCl2 and Mehlich 1, while the carbonate and organic bound metal fractions could be extracted by EDTA and DTPA with stronger chelating ability. Moreover, the kinetic modeling results suggested that the chemical desorption mechanism might be the major factor controlling heavy metal release. These results could provide some valuable references for the risk assessment and management of heavy metals in the smelting contaminated sites.
引用
收藏
页数:11
相关论文
共 26 条
  • [1] Effects of amendments on the bioavailability, transformation and accumulation of heavy metals by pakchoi cabbage in a multi-element contaminated soil
    Li, Song
    Sun, Xiangyang
    Li, Suyan
    Liu, Yuanxin
    Ma, Qixue
    Zhou, Wenjie
    RSC ADVANCES, 2021, 11 (08) : 4395 - 4405
  • [2] Health risk assessment of heavy metals in street dust around a zinc smelting plant in China based on bioavailability and bioaccessibility
    Zheng, Na
    Hou, Shengnan
    Wang, Sujing
    Sun, Siyu
    An, Qirui
    Li, Pengyang
    Li, Xiaoqian
    ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 2020, 197
  • [3] Mobility of heavy metals from tailings to stream waters in local zinc smelting activities contaminated site
    Taoze Liu
    Yuangen Yang
    Bangyu Liu
    Xiangyang Bi
    Feili Li
    Chinese Journal of Geochemistry, 2006, 25 (Suppl 1): : 41 - 42
  • [5] The effectiveness of various treatments in changing the nutrient status and bioavailability of risk elements in multi-element contaminated soil
    Garcia-Sanchez, Mercedes
    Garcia-Romera, Inmaculada
    Szakova, Jirina
    Kaplan, Lukas
    Tlustos, Pavel
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2015, 22 (18) : 14325 - 14336
  • [6] The effectiveness of various treatments in changing the nutrient status and bioavailability of risk elements in multi-element contaminated soil
    Mercedes García-Sánchez
    Inmaculada García-Romera
    Jiřina Száková
    Lukáš Kaplan
    Pavel Tlustoš
    Environmental Science and Pollution Research, 2015, 22 : 14325 - 14336
  • [7] Bioavailability-based risk assessment of various heavy metals via multi-exposure routes for children and teenagers in Beijing, China
    Zhongwen Du
    Zuguang Tian
    Yelan Yin
    Junxiao Wei
    Yue Mu
    Jianjun Cai
    Zefeng Song
    Kuang Cen
    Environmental Science and Pollution Research, 2023, 30 : 114985 - 115002
  • [8] Bioavailability-based risk assessment of various heavy metals via multi-exposure routes for children and teenagers in Beijing, China
    Du, Zhongwen
    Tian, Zuguang
    Yin, Yelan
    Wei, Junxiao
    Mu, Yue
    Cai, Jianjun
    Song, Zefeng
    Cen, Kuang
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2023, 30 (54) : 114985 - 115002
  • [9] Assessment of heavy metal pollution and scope definition in the Indigenous Zinc Smelting agglomeration areas of northwest Guizhou Province of China
    Lyu, Liuyan
    Chen, Xiang'e
    Chen, Wu
    Gong, Daxing
    Lu, Yan
    Wu, Kaibin
    He, Chuntian
    Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering, 2024, 40 (18): : 228 - 239
  • [10] Source apportionment and quantitative risk assessment of heavy metals at an abandoned zinc smelting site based on GIS and PMF models
    He, Jin
    Peng, Zhihong
    Zeng, Jiaqing
    Li, Chuxuan
    Tang, Lu
    Jiang, Jun
    Luo, Xinghua
    Gao, Wenyan
    Guo, Junkang
    Shao, Binbin
    Xue, Shengguo
    JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2023, 336