Mercury distribution in sediment along urban-rural gradient around Shanghai (China): implication for pollution history

被引:10
|
作者
Yang, Jing [1 ]
Chen, Ling [1 ]
Shi, Wei-Ling [1 ]
Liu, Li-Zao [1 ]
Li, Yue [1 ]
Meng, Xiang-Zhou [1 ]
机构
[1] Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resources Reuse, Shanghai 200092, Peoples R China
关键词
Mercury; Methylmercury; Sediment; Distribution; Urbanization; Shanghai; METHYLMERCURY PRODUCTION; METAL ENRICHMENT; PORE-WATER; LAKES; DEPOSITION; CONTAMINATION; METHYLATION; EMISSIONS; STREAM; ENVIRONMENT;
D O I
10.1007/s11356-014-3611-3
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The increasing levels of heavy metals in the environment generally related with the rapid industrialization and urbanization. Mercury (Hg) is a global toxin with wide concerns, and China gradually becomes the main producer, consumer, and emitter of Hg in the world. However, few historical data are available on the occurrence of Hg in Chinese urban areas. Here, we collected 35 lake surface sediment samples from 35 public parks and 1 sediment core in the Luxun Park in Shanghai, a hyper-urbanization city in China, to determine the spatial and vertical distributions of total mercury (THg) and methylmercury (MeHg) and to explore the Hg pollution history with the industrial development. Higher concentrations of Hg and MeHg and greater Hg enrichment were found in urban areas compared with suburban area with the following order: central urban core area > developed urban area > developing urban area>suburban area. The THg concentration in the sediment core showed an increasing trend from 1876 to 2000 and a decreasing trend from 2000 to 2012, coinciding with the process of industrialization and urbanization in Shanghai. However, THg fluxes unceasingly increased from 1876 to present probably attributed to coal consumption in the suburban area and transportation agglomeration in the central urban core area. Unlike THg, no significant variations for MeHg with time and the maximum value (0.17 mu g/kg) appeared in 1947. The methylation ratio of MeHg to THg in the sediment is pretty low, and more studies are needed to further understand the fate of Hg in the environment.
引用
收藏
页码:1697 / 1704
页数:8
相关论文
共 50 条
  • [21] Dietary diversification of an insect predator along an urban-rural gradient
    Scholz, Carolin
    Teige, Tobias
    Djoumessi, Kevine P. Ngoufack
    Buchholz, Sascha
    Pritsch, Fabienne
    Planillo, Aimara
    Voigt, Christian C.
    LANDSCAPE AND URBAN PLANNING, 2025, 256
  • [22] Childhood Asthma And Related Conditions Along An Urban-Rural Gradient
    Lawson, J. A.
    Rennie, D. C.
    Dyck, R.
    Cockcroft, D. W.
    Pahwa, P.
    Oluwole, O.
    Afanasieva, A.
    AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, 2014, 189
  • [23] Characterization of atmospheric mercury concentrations along an urban-rural gradient using a newly developed passive sampler
    Zhang, Wei
    Tong, Yindong
    Hu, Dan
    Ou, Langbo
    Wang, Xuejun
    ATMOSPHERIC ENVIRONMENT, 2012, 47 : 26 - 32
  • [24] Cohorts and neighbors: Urban-rural conflict along the age gradient
    Haffert, Lukas
    Mitteregger, Reto
    ELECTORAL STUDIES, 2023, 86
  • [25] Transmission dynamics of Toxoplasma gondii along an urban-rural gradient
    Lelu, M.
    Langlais, M.
    Poulle, M. -L.
    Gilot-Fromont, E.
    THEORETICAL POPULATION BIOLOGY, 2010, 78 (02) : 139 - 147
  • [26] Asthma diagnosis among children along an urban-rural gradient
    Oluwole, Oluwafemi
    Rennie, Donna C.
    Senthilselvan, Ambikaipakan
    Dyck, Roland
    Afanasieva, Anna
    Adamko, Darryl J.
    Lawson, Joshua A.
    JOURNAL OF ASTHMA, 2018, 55 (11) : 1242 - 1252
  • [27] Atmospheric deposition to oak forests along an urban-rural gradient
    Lovett, GM
    Traynor, MM
    Pouyat, RV
    Carreiro, MM
    Zhu, WX
    Baxter, JW
    ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2000, 34 (20) : 4294 - 4300
  • [28] Asthma Diagnosis Along An Urban-Rural Gradient In Saskatchewan, Canada
    Oluwole, O.
    Rennie, D. C.
    Senthilselvan, A.
    Dyck, R.
    Afanasieva, A.
    Adamko, D. J.
    Lawson, J. A.
    AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, 2017, 195
  • [29] Mental barriers in planning for cycling along the urban-rural gradient
    Brezina, Tadej
    Lemmerer, Helmut
    Leth, Ulrich
    TRANSPORTATION RESEARCH INTERDISCIPLINARY PERSPECTIVES, 2022, 16
  • [30] Analysis and interpretation of variability in soundscapes along an urban-rural gradient
    Joo, Wooyeong
    Gage, Stuart H.
    Kasten, Eric P.
    LANDSCAPE AND URBAN PLANNING, 2011, 103 (3-4) : 259 - 276