Format

Send to

Choose Destination
Environ Pollut. 2016 Dec;219:612-619. doi: 10.1016/j.envpol.2016.06.028. Epub 2016 Jun 22.

An extended study on historical mercury accumulation in lake sediment of Shanghai: The contribution of socioeconomic driver.

Author information

1
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; School of Geographic Sciences, East China Normal University, Shanghai 200241, China.
2
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
3
Biodesign Center for Environmental Security, The Biodesign Institute, Global Security Initiative and School of Sustainable Engineering and the Built Environment, Arizona State University, 781 E. Terrace Mall, Tempe 85287, USA.
4
School of Geographic Sciences, East China Normal University, Shanghai 200241, China.
5
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China. Electronic address: xzmeng@tongji.edu.cn.

Abstract

Rapid industrialization and urbanization has caused large emission and potential contamination of mercury (Hg) in urban environment. However, little is known about the impact of socioeconomic factor on Hg accumulation in sediment. In the present study, historical record of anthropogenic Hg deposition of Shanghai was reconstructed by using three sediment cores from three park lakes (C1: Luxun Park; C2: Fuxing island Park; C3: Xinjiangwan Park). Meanwhile, the influence of socioeconomic factor to Hg emissions and sedimentary record was calculated based on an extended STIRPAT (stochastic impacts by regression on population, affluence and technology) model. The profiles of Hg levels and fluxes in the three sediment cores showed that Shanghai has recently undergone urbanization. The anthropogenic Hg fluxes exhibited fluctuant increases from ∼1900 to present and accelerated after the establishment of the People's Republic of China in 1949 and the implementation of reform and opening up policy in 1978. The mean flux ratios of Hg in post-2000 were 2.2, 12, and 2.7 in the C1, C2 and C3 cores, respectively. The extended STIRPAT model was constructed based on strong positive relationships between socioeconomic factors and Hg fluxes, revealing that the proportion of coal consumption, the urbanization rate, and the proportion of heavy industry were the three most important driving factors for Hg accumulations in urban sediment of Shanghai.

KEYWORDS:

Mercury; STIRPAT model; Sediment core; Shanghai; Urbanization

PMID:
27344088
DOI:
10.1016/j.envpol.2016.06.028
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center