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Ecological Risks and Spatial Distributions of Heavy Metals in Beijing Atmospheric Dust
Dejun Wan1, Guanglin Yang1, Jinsong Yang1, Changlin Zhan2
1Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences,
2School of Environmental Science and Engineering, Hubei Polytechnic University,
Final revision date: 2017-08-03
Online publication date: 2018-01-15
Pol. J. Environ. Stud. 2018;27(2):881–887
Heavy metals contamination of air
To investigate ecological risks and spatial distributions of heavy metals in atmospheric particles in the Beijing urban area, atmospheric dust was collected from 62 sites and 12 heavy metals in their <63 um fractions were measured. Results indicate that V, Cr, Mn, Co, Ni, and Ba in the dust are basically unpolluted by human activities; whereas Cu, Zn, As, Cd, Sb, and Pb are moderately to heavily polluted. These metals (not including Ba) in most dust show a high ecological risk (RI = 809 ±585, ranging 291-4,848), predominantly contributed by Cd (71%) and Sb (14%). Relatively higher risks mainly occur in the eastern and northwestern urban areas. The high risks in the east are caused mainly by Cd pollution associated with coal-burning and industrial and traffic activities, while those in the northwest are caused mainly by Sb pollution associated with point pollution sources and Cd pollution from traffic activity. This is significant for controlling atmospheric heavy metal pollution over the Beijing urban area and investigating atmospheric metal pollution in other cities.
Lithology and Human Activities Determine the Distribution and Pollution Level of Potentially Toxic Elements in the Topsoil of the Karst Region, Southwestern China
Distribution Characteristics and Ecological Risk Assessment of Heavy Metals in Typical Farmland Soils from Baijiazui Village of Ningyuanbu Town, China
Study and Risk Assessment of Heavy Metals and Risk Element Pollution in Shallow Soil in Shanxi Province, China
Fuzzy Comprehensive Evaluation (FCE) and Toxic Risk Index (TRI) Analysis of the Heavy Metals in Sediments of Hongfeng Reservoir, Southwest China
The Potential of Wheat Straw Fibre in Treatment of Heavy Metal-Contaminated Soil: Mechanical Properties Research
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