An Investigation of Microplastic Occurrence and Heavy Metals Concentrations in Street Dust on the Left Side of Mosul City, Iraq

• Autorzy: Almola, Marah Ayad , Al-Ahmady, Kossay K. , Mhemid, Rasha Khalid Sabri
• Języki publikacji: EN

Abstrakty

EN

The issue of street dust pollution is primarily related to levels of microplastic particles (MPs) and heavy metals, raising concerns about their potential risk to the environment. In this work, twenty street dust samples with three replicates were collected from different areas (residential, commercial, and industrial) on the left side of Mosul city/Iraq, to investigate the presence of MPs and study their characteristics. Additionally, to assess the potential ecological risk impact of twelve heavy metals. Among the 60 dust samples taken from the streets, an average of MPs ranging between 244 and 2760 per 15 grams of dust was detected. Most of these plastic particles were transparent fragments with sizes varying from less than 10 to 200 µm as observed through a stereomicroscope and a scanning electron microscope (SEM). Furthermore, results from FTIR analysis indicated that polyvinyl chloride (PVC) was the dominant polymer type found in MPs, accounting for around 63%. The levels of metal in road dust were assessed using X-ray fluorescence (XRF) showing that quantification of Cr, Ni, Cu, Zn, As, Sb, Hg, and Pb surpassed the background values of world soils among the twelve elements studied. Variation coefficients (VCs) coupled with enrichment and contamination factors revealed that Cr, Cu, Zn, As, Se, Cd, Sb, Hg, and Pb are associated with both sources (anthropogenic and natural). On the other hand, Mn, Fe, and Ni originate from natural sources. Calculated potential ecological risk (Er) indicated high ecological risk by Hg. Approximately half of the samples exhibited moderate ecological risk indices (RI).

Słowa kluczowe

EN

microplastic; heavy metals; FTIR; Fourier Transform Infrared Spectroscopy; street dust; ecological risk; enrichment factor; ecological risk index

• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2024
• Tom: Vol. 25, nr 9
• Strony: 116--132
• Opis fizyczny: Bibliogr. 43 poz., rys., tab.

Twórcy

autor

Almola, Marah Ayad

• Department of Environmental Technologies, College of Environmental Science, University of Mosul, Mosul, 41002, Iraq

autor

Al-Ahmady, Kossay K.

• University of Mosul, Mosul, 41002, Iraq,

autor

Mhemid, Rasha Khalid Sabri

• Department of Environmental Technologies, College of Environmental Science, University of Mosul, Mosul, 41002, Iraq,

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Identyfikatory

DOI

10.12911/22998993/190288