Impacts of Selenium on the Biogeochemical Cycles of Mercury in Terrestrial Ecosystems in Mercury Mining Areas

Mercury is a very serious environmental pollutant which is intensely studied by many researchers. China is a main producer and consumer of mercury. We have pursued extensive monitoring of atomic mercury using the differential absorption lidar (DIAL) technique, based on a newly constructed mobile monitoring system. Mercury levels in major cities (Guangzhou, Zhengzhou, Xi´a n) were measured, as well as in mercury mining areas in Wanshan, Guizhou province. Further, mercury emissions from the Emperor Qin Mausoleum in Xi´an were investigated together with archaeologists.

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Sediment Toxicity and Bioaccumulation Assessment in Abandoned Copper and Mercury Mining Areas of the Nalón River Basin (Spain)

Archives of Environmental Contamination and Toxicology ◽

10.1007/s00244-014-0093-8 ◽

2014 ◽

Vol 68 (1) ◽

pp. 107-123 ◽

Cited By ~ 9

Author(s):

L. Méndez-Fernández ◽

P. Rodríguez ◽

M. Martínez-Madrid

Keyword(s):

River Basin ◽

Sediment Toxicity ◽

Mining Areas ◽

Mercury Mining

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Cycles biogéochimiques comparés de quelques éléments chimiques (Ca, Mg, K, Na, Si, Cl, S) dans divers écosystèmes à végétation naturelle d'Afrique occidentale. Biogeochemical cycles of several elements (Ca, Mg, K, Na, Si, Cl, S) in different natural terrestrial ecosystems of West Africa

Sciences Géologiques Bulletin ◽

10.3406/sgeol.1986.1724 ◽

1986 ◽

Vol 39 (2) ◽

pp. 173-193

Author(s):

François Lelong ◽

Eric Roose

Keyword(s):

West Africa ◽

Terrestrial Ecosystems ◽

Biogeochemical Cycles

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FTIR Spectra Analysis of Sediment Influenced by Acid Mine Drainage

Proccedings of 10th International Conference "Environmental Engineering" ◽

10.3846/enviro.2017.003 ◽

2017 ◽

Author(s):

Eva Singovszka ◽

Magdalena Balintova

Keyword(s):

Acid Mine Drainage ◽

Mine Drainage ◽

Slovak Republic ◽

Sediment Quality ◽

Terrestrial Ecosystems ◽

Negative Influence ◽

Industrial Wastes ◽

Spectra Analysis ◽

Mining Areas ◽

Acid Mine

The contamination of aquatic and terrestrial ecosystems with heavy metals and other mining chemicals have been major environmental problems in many mining areas of the world. Industrial wastes, geochemical structure and metals mining form a potential source of metal contaminants in the aquatic environment especially in sediment. In Slovak Republic there are some localities with existing acid mine drainage (AMD) generation conditions. The most critical values were observed in the abandoned deposit Smolnik. Waters from the earth surface penetrated the mine and they are enriched with metals and their pH values decreased. Increasing of pH after their mixing with surface water has negative influence on accumulation of pollutants in sediment. The aim of this paper is to investigate the use of Fourier transform infrared (FTIR) transmittance spectroscopy for identification of changes of functions group in the sediment composition influenced by acid mine drainage. Chemical parameters of sediment quality were studied also by X-ray fluorescence spectrometry (XRF).

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Biogeochemical Cycles of Nitrogen and Phosphorus

Technologies for the Treatment and Recovery of Nutrients from Industrial Wastewater - Advances in Environmental Engineering and Green Technologies ◽

10.4018/978-1-5225-1037-6.ch001 ◽

2017 ◽

pp. 1-20

Author(s):

Andrea Fra-Vázquez ◽

Daniel Valenzuela-Heredia

Keyword(s):

Human Resource ◽

Human Activity ◽

Crucial Role ◽

Terrestrial Ecosystems ◽

Biogeochemical Cycles ◽

Global Scale ◽

Essential Elements ◽

Nitrogen And Phosphorus ◽

Limiting Nutrients ◽

Significant Attention

The study of biogeochemical cycles is important to understand the circulation of elements through aquatic, aerial and terrestrial ecosystems. Among others, N and P are considered as the limiting nutrients that determine the productivity of organisms. Since human activity is increasing its influence over these cycles at a global scale, it is important to analyze the implications of anthropogenic variations in order to detect the sources and try to prevent or reduce their impact. Moreover, not only the increasing or diminished concentration of nitrogen and phosphorus in nature by human resource exploitations is needed to account today. As metals play a crucial role in the dynamics of these essential elements, their presence in the environment also requires a significant attention.

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