Pollution characteristics and human health risks of potentially (eco) toxic elements (PTEs) in road dust from metropolitan area of Hefei, China

Date

2017-08-01

Author

Ali, Muhammad Ubaid
Liu, Guijian
Yousaf, Balal
Abbas, Qumber
Ullah, Habib
Munir, Mehr Ahmed Mujtaba
Fu, Biao

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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This study aims to investigate the pollution characteristics of road dust and their associated health risks of potentially toxic elements (PTEs) to humans using array-based risk assessment models described by United States Environmental Protection Agency (USEPA) in a metropolitan area of Hefei, China. Geoaccumulation index (I-geo) was used to describe pollution characteristics of roadside dust in urban, periurban and industrial areas. Results indicate that industrial roadside dust was contaminated with Fe, Ni, Cu, Ti, V, Pb, Ba, Sb, Cr, Sn, Pb, As and Ga showing I-geo value (log(2) (x)) between I-geo class 3 to 4. In other hand, urban roadside dust contamination with Cu, Zn, Sb and Ga ranged between Ivo classes 2 to 3 and with As and Pb ranged between I-geo classes 4 to 5. Furthermore, health risk assessment revealed negligible non-cancerous health hazard in all sites including urban, periurban and industrial areas. The hazard quotient (HQ) and hazard Index (HI) values for all exposure routes (ingestion, inhalation, and dermal contact) were <1 except for chromium with HI value of 1.06E+00 in industrial areas. Moreover, the most prominent exposure route was ingestion (HQing) and the non-carcinogenic health risks were found to be high in case of children compared to the adults. The cancer risk from As, Co, Cr, Ni, and Pb was found to be in safe levels as the RI (carcinogenic risks) values were below the limits for carcinogens (1.00E-6 to 1.00E-4). (C) 2017 Elsevier Ltd. All rights reserved.

URI

https://hdl.handle.net/11511/89980

Journal

CHEMOSPHERE

DOI

https://doi.org/10.1016/j.chemosphere.2017.04.061

Collections

Department of Environmental Engineering, Article

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Citation Formats

M. U. Ali et al., “Pollution characteristics and human health risks of potentially (eco) toxic elements (PTEs) in road dust from metropolitan area of Hefei, China,” CHEMOSPHERE, pp. 111–121, 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/89980.