Contamination characteristics and potential environmental implications of heavy metals in road dusts in typical industrial and agricultural cities, southeastern Hubei Province, Central China
- 198 Downloads
In November 2013, the total concentration of selected heavy metals in 43 urban dust samples, collected from two small-sized cities of industrial E’zhou and agricultural Huanggang, located in the southeastern Hubei province, central China, was detected quantitatively by flame atomic absorption spectrometric (FAAS) for ultimate purpose of pollution monitoring and risk evaluation. Results indicated that the mean concentrations exceeding their respective background values were observed for all the investigated metals, with the exception of Co (13.08mg kg−1) and Fe (38635.02mg kg−1) in Huanggang road dusts, whose average concentrations were close to the background levels. In comparison with the reference data reported from the selected cities worldwide, the urban road dusts were seriously polluted by heavy metals to diverse degrees. The contour distribution maps implied that obviously higher values zones were found between two different types of urban areas, located to both sides of the coastline of Yangtze River. Multivariate statistical analysis revealed that the enriched heavy metals had emanated from the combined effects of both natural sources and anthropogenic sources. Three pollution indices indicated that the riskiest element mainly comprising Cr, Ni, Cu, and Pb appeared to be the major contributors to the urban environmental pollution. Avoiding continuous damage requires, the riskiest metallic contaminants should be paid preferential attention to.
KeywordsUrban road dusts Heavy metals Contamination characteristics Environmental risk assessment
The authors would like to sincerely thank the reviewers and the editor for their constructive comments that helped to improve the manuscript.
This research was supported by the National Key Research and Development Program of China (2017YFC0212602), the Hubei Universities of Outstanding Young Scientific and Technological Innovation Team Plans (T201729), the National Natural Science Foundation of China (41603117), and the Outstanding Youth Science and Technology Innovation Team Projects of Hubei Polytechnic University (13xtz07).
- Bourliva A, Christophoridis C, Papadopoulou L, Giouri K, Papadopoulos A, Mitsika E, Fytianos K (2016) Characterization, heavy metal content and health risk assessment of urban road dusts from the historic center of the city of Thessaloniki, Greece. Environ Geochem Health 39(3):611–634CrossRefGoogle Scholar
- Cheng Z, Chen LJ, Li HH, Lin JQ, Yang ZB, Yang YX, Xu XX, Xian JR, Shao JR, Zhu XM (2017) Characteristics and health risk assessment of heavy metals exposure via household dust from urban area in Chengdu, China. Sci Total Environ 619–620:621–629Google Scholar
- CNEMC (China National Environmental Monitoring Centre) (1990) The backgrounds of soil environment in China. China Environmental Science Press, Beijing, China (in Chinese)Google Scholar
- Li Z, Feng X, Li G, Bi X, Zhu J, Qin H, Dai Z, Liu J, Li Q, Sun G (2013) Distributions, sources and pollution status of 17 trace metal/metalloids in the street dust of a heavily industrialized city of central China. Environ Pollut 182:408–416Google Scholar
- Lin ML, Gui HR, Wang, Y, Peng, WH (2017) Pollution characteristics, source apportionment, and health risk of heavy metals in street dust of Suzhou, China. Environ Sci Pollut Res 24 (2):1987–1998Google Scholar
- MEEPRC (Ministry of Ecology and Environment of the People's Republic of China) (2014) HJ 25.3–2014 Technical guidelines for risk assessment of contaminated sites. Beijing, China (in Chinese)Google Scholar
- United States Department of Energy (2004) RAIS: Risk Assessment Information System. US Department of Energy, Washington DCGoogle Scholar
- United States Environmental Protection Agency (US EPA) (1989) Risk assessment guidance for superfund. In: Human health evaluation manual (PartA). EPA/540/1-89/002, vol 1, Washington, DC, pp 35–52Google Scholar
- United States Environmental Protection Agency (US EPA) (1992) Supplemental Guidance to RAGS: Calculating the Concentration Term. PB92-963373. Office of Solid Waste and Emergency Response, Environmental Protection Agency, Washington, D.C.Google Scholar
- United States Environmental Protection Agency (US EPA) (2001) Supplemental guidance to RAGS; Region 4 Bulletin. Ecological Risk Assessment. Originally published: EPA region IVGoogle Scholar
- United States Environmental Protection Agency (US EPA) (2011) Exposure factors handbook, finaled. US Environmental Protection Agency, Washington, DC [EPA/600/R-09/052F]Google Scholar
- Zhao N, Lu X, Chao S, Xu X (2015) Multivariate statistical analysis of heavy metals in less than 100μm particles of street dust from Xining, China. Environ Earth Sci 73 (5):2319–2327Google Scholar