Source-specific risk judgement and environmental impact of potentially toxic elements in fine road dust from an integrated industrial city, North China

Yufan Yang; Xinwei Lu; Bo Yu; Ling Zuo; Lingqing Wang; Kai Lei; Peng Fan; Tao Liang; Thilo Rennert; Jörg Rinklebe

doi:10.1016/j.jhazmat.2023.131982

Source-specific risk judgement and environmental impact of potentially toxic elements in fine road dust from an integrated industrial city, North China

J Hazard Mater. 2023 Sep 15:458:131982. doi: 10.1016/j.jhazmat.2023.131982. Epub 2023 Jun 30.

Authors

Yufan Yang¹, Xinwei Lu², Bo Yu¹, Ling Zuo¹, Lingqing Wang³, Kai Lei⁴, Peng Fan¹, Tao Liang⁵, Thilo Rennert⁶, Jörg Rinklebe⁷

Affiliations

¹ Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China.
² Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an 710119, China. Electronic address: luxinwei@snnu.edu.cn.
³ Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China. Electronic address: wanglq@igsnrr.ac.cn.
⁴ School of Biological and Environmental Engineering, Xi'an University, Xi'an 710065, China.
⁵ Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
⁶ Department of Soil Chemistry and Pedology, Institute of Soil Science and Land Evaluation, University of Hohenheim, 70593 Stuttgart, Germany.
⁷ University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste-Management, Soil-and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany.

PMID: 37413801
DOI: 10.1016/j.jhazmat.2023.131982

Abstract

The contamination of potentially toxic elements (PTEs) in road dust of large industrial cities is extremely serious. Determining the priority risk control factors of PTE contamination in road dust is critical to enhance the environmental quality of such cities and mitigate the risk of PTE pollution. The Monte Carlo simulation (MCS) method and geographical models were employed to assess the probabilistic pollution levels and eco-health risks of PTEs originating from different sources in fine road dust (FRD) of large industrial cities, and to identify key factors affecting the spatial variability of priority control sources and target PTEs. It was observed that in FRD of Shijiazhuang, a typical large industrial city in China, more than 97% of the samples had an INI > 1 (INI_mean = 1.8), indicating moderately contaminated with PTEs. The eco-risk was at least considerable (NCRI >160) with more than 98% of the samples, mainly caused by Hg (E_{i (mean)} = 367.3). The coal-related industrial source (NCRI_(mean) = 235.1) contributed 70.9% to the overall eco-risk (NCRI_(mean) = 295.5) of source-oriented risks. The non-carcinogenic risk of children and adults are of less importance, but the carcinogenic risk deserves attention. The coal-related industry is a priority control pollution source for human health protection, with As corresponding to the target PTE. The major factors affecting the spatial changes of target PTEs (Hg and As) and coal-related industrial sources were plant distribution, population density, and gross domestic product. The hot spots of coal-related industrial sources in different regions were strongly interfered by various human activities. Our results illustrate spatial changes and key-influencing factors of priority source and target PTEs in Shijiazhuang FRD, which are helpful for environmental protection and control of environmental risks by PTEs.

Keywords: Geo-detector; Metal(loid)s; Monte Carlo simulation; Multiscale geographically weighted regression; Priority sources; Risk assessment.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adult
Child
China
Cities
Coal / analysis
Dust / analysis
Environmental Monitoring / methods
Humans
Judgment
Mercury*
Metals, Heavy* / analysis
Risk Assessment
Soil
Soil Pollutants* / analysis

Substances

Dust
Metals, Heavy
Coal
Mercury
Soil Pollutants
Soil