{"title":"Air quality near Middle East's large dried lake: Heavy metal emissions, machine learning analysis, and health risks","authors":"Samaneh Shahsavani , Narges Shamsedini , Amin Mohammadpour , Mohammad Hoseini","doi":"10.1016/j.pce.2024.103793","DOIUrl":null,"url":null,"abstract":"<div><div>The present study aimed to measure the concentrations and chemical compositions of suspended particulate matters smaller than 10 μm (PM<sub>10</sub>) in the ambient air of Bakhtegan Lake and to assess the health risks associated with exposure to metal elements through inhalation. Ambient air samples were collected from a rural area close to the lake. The levels of metal elements bonded to PM<sub>10</sub> were measured by the Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The mean ambient PM<sub>10</sub> concentration around the studied lake (78.12 μg/m<sup>3</sup>) was higher than the 24 h guidelines PM<sub>10</sub> standards proposed by World Health Organization (WHO) (50 μg/m<sup>3</sup>). The highest and lowest concentrations were related to Fe and V, respectively. Lifetime Cancer Risk (LCR) was higher for adults than for children. Additionally, the LCR value was higher for As compared to other metals, indicating that the cancer risk in the adults group was mainly due to As. Besides, health risk assessments indicated that adults suffered from higher cancer risks compared to children, while both adults and children did not suffer from non-carcinogenic risks. Through Principal component analysis (PCA) and random forest (RF) analysis, it was determined that metallic concentrations in the air samples are influenced by both natural and anthropogenic sources, with copper and lead identified as pivotal predictors for nickel levels. Therefore, monitoring and addressing such metal-induced pollution is essential for regional public health.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103793"},"PeriodicalIF":3.0000,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics and Chemistry of the Earth","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1474706524002511","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The present study aimed to measure the concentrations and chemical compositions of suspended particulate matters smaller than 10 μm (PM10) in the ambient air of Bakhtegan Lake and to assess the health risks associated with exposure to metal elements through inhalation. Ambient air samples were collected from a rural area close to the lake. The levels of metal elements bonded to PM10 were measured by the Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The mean ambient PM10 concentration around the studied lake (78.12 μg/m3) was higher than the 24 h guidelines PM10 standards proposed by World Health Organization (WHO) (50 μg/m3). The highest and lowest concentrations were related to Fe and V, respectively. Lifetime Cancer Risk (LCR) was higher for adults than for children. Additionally, the LCR value was higher for As compared to other metals, indicating that the cancer risk in the adults group was mainly due to As. Besides, health risk assessments indicated that adults suffered from higher cancer risks compared to children, while both adults and children did not suffer from non-carcinogenic risks. Through Principal component analysis (PCA) and random forest (RF) analysis, it was determined that metallic concentrations in the air samples are influenced by both natural and anthropogenic sources, with copper and lead identified as pivotal predictors for nickel levels. Therefore, monitoring and addressing such metal-induced pollution is essential for regional public health.
期刊介绍：
Physics and Chemistry of the Earth is an international interdisciplinary journal for the rapid publication of collections of refereed communications in separate thematic issues, either stemming from scientific meetings, or, especially compiled for the occasion. There is no restriction on the length of articles published in the journal. Physics and Chemistry of the Earth incorporates the separate Parts A, B and C which existed until the end of 2001.
Please note: the Editors are unable to consider submissions that are not invited or linked to a thematic issue. Please do not submit unsolicited papers.
The journal covers the following subject areas:
-Solid Earth and Geodesy:
(geology, geochemistry, tectonophysics, seismology, volcanology, palaeomagnetism and rock magnetism, electromagnetism and potential fields, marine and environmental geosciences as well as geodesy).
-Hydrology, Oceans and Atmosphere:
(hydrology and water resources research, engineering and management, oceanography and oceanic chemistry, shelf, sea, lake and river sciences, meteorology and atmospheric sciences incl. chemistry as well as climatology and glaciology).
-Solar-Terrestrial and Planetary Science:
(solar, heliospheric and solar-planetary sciences, geology, geophysics and atmospheric sciences of planets, satellites and small bodies as well as cosmochemistry and exobiology).
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