Morpho-chemical characterization and source apportionment of potentially toxic metal(oid)s from school dust of second largest populous city of Pakistan

Date

2021-05-01

Author

Rehman, Abdul
Liu, Guijian
Yousaf, Balal
Ahmed, Rafay
Rashid, Muhammad Saqib
Irshad, Samina
Shakoor, Awais
Farooq, Muhammad Raza

Metadata

Show full item record

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

Item Usage Stats

124
views

0
downloads

Interior settled dust is one of the greatest threats of potentially toxic metal(oid)s (PTMs) exposure to the children, especially in the school environment. Therefore, it is more worthy of having in-depth knowledge of compositional characteristics of school dust. Forty schools were selected of Lahore city for dust sampling. The school dust was analyzed to determine the PTMs (As, Cd, Cr, Cu, Ge, Mo, Ni, Pb, Sb, Sn, Sr, V, and Zn) concentrations using ICP-MS. The morphological characteristics, PTMs speciation, and mineralogy of school dust were examined using SEM with EDS, XPS, and XRD, respectively. Moreover, the geo-accumulation index (Igeo), potential ecological risk index (PERI), and multivariate statistical analysis were employed to assess the pollution levels, ecological risk, and source identification of PTMs, respectively. The Igeo indicated a heavily-extreme pollution level of Cd (Igeo = 4.92), moderate-heavy pollution of Zn (Igeo = 3.22), and Pb (Igeo = 2.78), and slight-moderate pollution of Cr (Igeo = 1.62), and Cu (Igeo = 1.53). The ecological risk has been found extremely high for Cd and moderately high for Pb and As, while potential ecological risk found extremely high posed by cumulatively all selected PTMs. Multivariate statistical analysis showed that sources of PTMs comprise of natural processes as well as several anthropogenic processes like vehicular emissions, agricultural and industrial activities. The SEM, XRD, and XPS analyses demonstrated the presence of airborne particles and PTMs containing minerals with several toxic chemical species in school dust. This study can help to develop strategies to reduce school indoor pollution and hence to establish an eco-friendly learning environment for children.

Subject Keywords

Ecological risk assessment, Geo-accumulation index, Multivariate statistical analysis, School indoor pollution

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85097182484&origin=inward
https://hdl.handle.net/11511/90736

Journal

Environmental Research

DOI

https://doi.org/10.1016/j.envres.2020.110427

Collections

Department of Environmental Engineering, Article

Suggestions

OpenMETU
Core

Geochemical fractionation and spectroscopic fingerprinting for evaluation of the environmental transformation of potentially toxic metal(oid)s in surface-subsurface soils Irshad, Samina; Liu, Guijian; Yousaf, Balal; Ali, Muhammad Ubaid; Ahmed, Rafay; Rehman, Abdul; Rashid, Muhammad Saqib; Mahfooz, Yusra (2021-04-01) The contamination of soil by toxic metal(oid)s has emerged as a major concern worldwide, particularly in developing countries. A metals behavior in the soil environment is influenced by organic matter, mineral phases, and oxidation states in which a particular metal exists. However, the spectroscopic evidence of metal(oid)s interactions in soil with organic matter and mineral phases can induce an extensive understanding. The surface and sub-surface soils (0-50 cm) from four sites of upper Indus basin, Pakis...
Use of clinoptilolite for copper and nickel removel from aqueous solutions Çağın, Volkan; İmamoğlu, İpek; Department of Environmental Engineering (2006) Heavy metals are well known toxic priority pollutants. Hence, wastewaters containing these species must be treated prior to discharge into receiving bodies. In this study, the potential of Bigadiç clinoptilolite for Cu2+ and Ni2+ removal from wastewaters was investigated in batch and continuous reactors. Results of the preliminary experiments revealed the optimum operating conditions, namely, initial solution pH of 5 and 4 for Cu2+ and Ni2+, respectively and contact time of 48 hours. Additionally, condition...
The effects of dietary calcium tetraborate on the ovalbumin levels and some egg quality traits in laying quails exposed to cadmium İflazoğlu, Sera; İflazoğlu Mutlu, Seda; Seven, Pınar Tatlı; Yılmaz, Ayşen; Şimşek, Ülkü Gülcihan (2021-05-01) Cadmium (Cd) is a toxic heavy metal and one of the most important environmental pollutant that is derived from agricultural and industrial sources. Boron (B) is a metalloid that has beneficial physiological effects on the metabolism of animals and humans. This research is aimed at investigating the effect of calcium tetraborate (CaB4O7) on the ovalbumin levels of quail’s egg and some egg quality traits in laying quails exposed to Cd. For this purpose, one hundred twenty Japanese quail 6-week-old wer...
Isothermal Creep Behaviour Investigation of Thin Spray-On Liners Güner, Doğukan; Öztürk, Hasan (2017-06-28) Rock supporting has a vital importance in longevity and sustainability of all underground openings. There are many types and forms of supporting systems available in the mining/tunneling industry. In the last decade, a new polymer-based surface support material, thin spray-on liner (TSL), has started to take place of conventional surface support materials. TSL is defined as generally cement, latex, polymer-based and also reactive or non-reactive, multi-component materials applied to the rock surface with a ...
Morphochemical investigation on the enrichment and transformation of hazardous elements in ash from waste incineration plants Ali, Muhammad Ubaid; Liu, Yuan; Yousaf, Balal; Wong, Ming Hung; Li, Ping; Liu, Guijian; Wang, Ruwei; Wei, Yong; Lu, Muyuan (2022-07-01) © 2022 Elsevier B.V.The transformation of heavy metals in ash from waste incineration plants is significant for ash management. The migration behavior of trace elements in ash after combustion, semidry deacidification, fabric filtration, and chelating agent stabilization was investigated from one waste incineration plant. The hazardous elements Zn, Pb, and As were enriched in raw fly ash (ash produced at a combustion temperature of 850–1100 °C) due to their relatively high volatility. Mercury, Cd, and Pb we...

Citation Formats

A. Rehman et al., “Morpho-chemical characterization and source apportionment of potentially toxic metal(oid)s from school dust of second largest populous city of Pakistan,” Environmental Research, pp. 0–0, 2021, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85097182484&origin=inward.