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Concentrations, sources, and health risk assessment of metals in indoor dust collected from visual arts studios of selected tertiary institutions in Southern Nigeria
Environmental Forensics ( IF 1.8 ) Pub Date : 2021-07-02 , DOI: 10.1080/15275922.2021.1940379
Chukwujindu M.A. Iwegbue 1 , Nnamdi Nwose 1 , Godswill O. Tesi 2 , Chijioke Olisah 3 , Oguejiofo T. Ujam 4 , Eze W. Odali 1 , Francis E. Egobueze 5 , Godwin E. Nwajei 1 , Bice S. Martincigh 6
Affiliation  

Abstract

This study provides data on the concentrations and occupational risk of Cd, Pb, Cr, Ni, Cu, Co, Mn, Zn, and Fe in indoor dust from visual arts studios of nine tertiary institutions in southern Nigeria. The dust samples were digested in aqua regia and their metal concentrations were quantified by atomic absorption spectrometry. The concentrations of metals in dust from visual arts studios ranged from not detected (nd) to 91.5 mg kg−1 Cd, 4.5 to 540 mg kg−1 Pb, 0.10 to 1,100 mg kg−1 Cr, 0.50 to 1,150 mg kg−1 Ni, 10 to 15,600 mg kg−1 Cu, 0.5 to 146 mg kg−1 Co, 3.0 to 3,680 mg kg−1 Mn, 93.5 to 9,600 mg kg−1 Zn, and 853 to 237,000 mg kg−1 Fe. The degree of contamination of the dust particles by metals was assessed by making use of the contamination/pollution index, geoaccumulation index and enrichment factor. These indices suggested that dusts from these visual arts studios were impacted with Cd, Pb, Cu, and Zn. The hazard index (HI) and cancer risk values relating to adults’ exposure to metals in dust from these arts studios were within safe limits. Principal component analysis indicated that the sources of metal contamination in dust from these visual arts studios were related to inputs from constituents of the artist’s materials and vehicular emissions.



中文翻译:

从尼日利亚南部部分大专院校的视觉艺术工作室收集的室内灰尘中金属的浓度、来源和健康风险评估

摘要

本研究提供了有关尼日利亚南部九所高等教育机构视觉艺术工作室室内灰尘中 Cd、Pb、Cr、Ni、Cu、Co、Mn、Zn 和 Fe 的浓度和职业风险的数据。灰尘样品在王水中消化,并通过原子吸收光谱法量化其金属浓度。视觉艺术工作室灰尘中的金属浓度范围从未检测到 (nd) 到 91.5 mg kg −1 Cd、4.5 到 540 mg kg −1 Pb、0.10 到 1,100 mg kg −1 Cr、0.50 到 1,150 mg kg −1 Ni, 10 to 15,600 mg kg -1 Cu, 0.5 to 146 mg kg -1 Co, 3.0 to 3,680 mg kg -1 Mn, 93.5 to 9,600 mg kg -1 Zn, and 853 to 237,000 mg kg-1铁。通过使用污染/污染指数、地累积指数和富集因子评估尘埃颗粒被金属污染的程度。这些指数表明这些视觉艺术工作室的粉尘受到了 Cd、Pb、Cu 和 Zn 的影响。与成年人接触这些艺术工作室粉尘中的金属有关的危险指数 (HI) 和癌症风险值均在安全范围内。主成分分析表明,这些视觉艺术工作室灰尘中金属污染的来源与艺术家材料和车辆尾气成分的输入有关。

更新日期:2021-07-02
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