Volume 17, Issue 4 (3-2025)
ijhe 2025, 17(4): 789-808 |
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Hosseini S S, Lorestani B, Sobhanardakani S, Cheraghi M, Rezaian S. Evaluation of pollution and environmental toxicity of potentially toxic elements in street dust of city of Hamedan, west of Iran. ijhe 2025; 17 (4) :789-808
URL: http://ijhe.tums.ac.ir/article-1-6933-en.html
URL: http://ijhe.tums.ac.ir/article-1-6933-en.html
Seyedeh Sholeh Hosseini1 
, Bahareh Lorestani * 2, Soheil Sobhanardakani1 , Mehrdad Cheraghi1 , Sahar Rezaian3
, Bahareh Lorestani * 2, Soheil Sobhanardakani1 , Mehrdad Cheraghi1 , Sahar Rezaian3
1- Department of the Environment, College of Basic Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran
2- Department of the Environment, College of Basic Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran ,lorestanib@iauh.ac.ir
3- Department of the Environment, Faculty of Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran
2- Department of the Environment, College of Basic Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran ,
3- Department of the Environment, Faculty of Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran
Abstract: (56 Views)
Background and Objective: Street dust, as both a source and sink of pollutants, is considered a reliable indicator for assessing atmospheric pollution. Therefore, this study aimed to evaluate the pollution levels and environmental toxicity of arsenic (As), zinc (Zn), lead (Pb), cadmium (Cd), and copper (Cu) in street dust in the city of Hamedan in 2023.
Materials and Methods: A total of 108 street dust samples were collected from 12 sampling sites, including residential, commercial, and industrial regions, during the spring, summer, and fall seasons. The concentrations of the analyzed elements were determined using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). Additionally, pollution indices (PI), integrated pollution index (IPI), and mean effects range median quotient (mERM-Q) were calculated.
Results: The highest average concentrations of the analyzed elements in street dust were observed in the industrial regions and the fall season for As (5.79 mg/kg), Zn (405 mg/kg), Cd (0.758 mg/kg), and Cu (84.8 mg/kg). For Pb, the highest average concentration (110 mg/kg) was found in commercial regions during the fall season. PI values indicated pollution levels for As, Zn, Pb, Cd, and Cu ranging from "moderate" to "very high." The average IPI values varied between 2.52 and 3.90, reflecting "high" pollution conditions across all sampling sites and seasons. Furthermore, the average mERM-Q values suggested a 21% probability of elemental toxicity in the analyzed street dust samples.
Conclusion: The findings highlight the influence of human activities, seasonal variations, and emission source fluctuations on street dust pollution. To mitigate pollution, it is recommended to identify and control the release sources of these elements, particularly in regions with higher pollution levels.
Materials and Methods: A total of 108 street dust samples were collected from 12 sampling sites, including residential, commercial, and industrial regions, during the spring, summer, and fall seasons. The concentrations of the analyzed elements were determined using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). Additionally, pollution indices (PI), integrated pollution index (IPI), and mean effects range median quotient (mERM-Q) were calculated.
Results: The highest average concentrations of the analyzed elements in street dust were observed in the industrial regions and the fall season for As (5.79 mg/kg), Zn (405 mg/kg), Cd (0.758 mg/kg), and Cu (84.8 mg/kg). For Pb, the highest average concentration (110 mg/kg) was found in commercial regions during the fall season. PI values indicated pollution levels for As, Zn, Pb, Cd, and Cu ranging from "moderate" to "very high." The average IPI values varied between 2.52 and 3.90, reflecting "high" pollution conditions across all sampling sites and seasons. Furthermore, the average mERM-Q values suggested a 21% probability of elemental toxicity in the analyzed street dust samples.
Conclusion: The findings highlight the influence of human activities, seasonal variations, and emission source fluctuations on street dust pollution. To mitigate pollution, it is recommended to identify and control the release sources of these elements, particularly in regions with higher pollution levels.
Keywords: Metal pollutants, Dust, Spatiotemporal variations, Pollution index, Environmental toxicity
Type of Study: Research |
Subject:
General
Received: 2024/06/4 | Accepted: 2024/12/4 | Published: 2025/03/8
Received: 2024/06/4 | Accepted: 2024/12/4 | Published: 2025/03/8
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