This page has only limited features, please log in for full access.
Trace metal contamination in urban road dust has attracted global concern due to its potential risk to the urban environment and human health. Compared to big cities, relative studies in counties and small towns have not been well quantified. This research identified the trace metal contamination characteristics and possible sources in the road dust of a typical mountainous county and a town in the Three Gorges Reservoir region, southwest China, and their associations with major regional socio-economic factors. The trace metal concentrations were determined, and the contamination levels were assessed. Concentrations of Zn, Pb, and Cu were relatively high in both locations, and a significant accumulation of them was confirmed by the geo-accumulation method. Multivariate analysis and geographic information system (GIS) mapping were combined to explore the sources of trace metals in the investigated area. Anthropogenic activities predominantly affected the contamination levels of Zn, Pb, Cu, and Co, and traffic emission, agricultural activities, and fossil fuel combustion were their main sources. The significant accumulation of Zn should attract special concern for its wide use in industrial and agricultural activities. Population and vehicle density were the main factors that controlled the trace metal contamination levels in the roadway dust. Rapid urbanizing promoted trace metal accumulation in counties and towns. Therefore, it is urgent to make appropriate strategies for trace metal pollution mitigation in the process of urbanization.
Huiyun Pan; Xinwei Lu; Kai Lei. Contamination Identification of Trace Metals in Roadway Dust of a Typical Mountainous County in the Three Gorges Reservoir Region, China, and its Relationships with Socio-Economic Factors. Sustainability 2020, 12, 5624 .
AMA StyleHuiyun Pan, Xinwei Lu, Kai Lei. Contamination Identification of Trace Metals in Roadway Dust of a Typical Mountainous County in the Three Gorges Reservoir Region, China, and its Relationships with Socio-Economic Factors. Sustainability. 2020; 12 (14):5624.
Chicago/Turabian StyleHuiyun Pan; Xinwei Lu; Kai Lei. 2020. "Contamination Identification of Trace Metals in Roadway Dust of a Typical Mountainous County in the Three Gorges Reservoir Region, China, and its Relationships with Socio-Economic Factors." Sustainability 12, no. 14: 5624.
A study on heavy metal pollution was undertaken in the re-suspended road dusts from different functional areas in Xi’an City of China to investigate the impacts of human activities and land uses on urban environment. The concentrations of Co, Cr, Cu, Mn, Ni, Pb, V, and Zn were determined using X-ray fluorescence spectrometry, and their accumulations were analyzed using enrichment factor. Correlation analysis, principal component analysis, and cluster analysis, combined with the concentration property and enrichment factor, were used to identify the possible sources of heavy metals investigated. The investigated re-suspended road dusts had Co, Cr, Cu, Pb, and Zn concentrations higher than background levels. Samples from different functional areas had diverse heavy metal concentration levels. Co, Cr, Cu, Pb, and Zn presented moderate/significant enrichment in the samples. The source analyses indicated that Mn, Ni, V, Pb, and Zn had the mixed sources of nature and traffic, Cr and Cu mainly originated from traffic source, while Co was primarily derived from construction source. Traffic and construction activities had a significant impact on urban environment. This preliminary research provides a valuable basis for urban environment protection and management.
Qian Wang; Xinwei Lu; Huiyun Pan. Analysis of heavy metals in the re-suspended road dusts from different functional areas in Xi’an, China. Environmental Science and Pollution Research 2016, 23, 19838 -19846.
AMA StyleQian Wang, Xinwei Lu, Huiyun Pan. Analysis of heavy metals in the re-suspended road dusts from different functional areas in Xi’an, China. Environmental Science and Pollution Research. 2016; 23 (19):19838-19846.
Chicago/Turabian StyleQian Wang; Xinwei Lu; Huiyun Pan. 2016. "Analysis of heavy metals in the re-suspended road dusts from different functional areas in Xi’an, China." Environmental Science and Pollution Research 23, no. 19: 19838-19846.