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Investigation of road dust characteristics and its associated health risks from an urban environment.
Environmental Geochemistry and Health ( IF 4.2 ) Pub Date : 2020-02-06 , DOI: 10.1007/s10653-020-00521-6
Jithin Jose 1 , B Srimuruganandam 1
Affiliation  

Globally, road dust is a major source of inhalable particulate matter in any urban environment. This research seeks to assess the elemental composition of road dust at Vellore city, India, and to evaluate its health risks. For this, dust samples are collected from 18 locations in the study region. The collected samples are digested and analysed for about 25 elements using inductively coupled plasma-optical emission spectroscopy, of which 19 elements have concentration greater than the detection limit of the instrument (Al, Ba, Ca, Mg, Sr, Co, Cr, Cu, Fe, Ga, Zn, In, K, Li, Mn, Na, Ni, Pb and Rb). The highest mean concentration is noted for Fe (22,638.23 mg/kg) followed by Ca (13,439.47 mg/kg), Al (8445.89 mg/kg) and Mg (3381.20 mg/kg). Enrichment factor (EF) and contamination factor (CF) are calculated for 10 trace elements: Cu, Co, Cr, Ga, Mn, Ni, Pb, Rb, Sr and Zn. Elements Ga and Zn show the highest EF and CF. Source identification recognized that crustal material and traffic as the major sources of potentially toxic elements (PTEs). Further, the health risk assessment is performed for nine PTEs and identifies that Fe, Pb, Cr and Co are elements with the highest health index. Health index of these elements suggests a possible health risk. Ingestion is the major pathway, and children are found to be at a higher risk compared to adults.

中文翻译:

调查城市环境中的道路扬尘特性及其相关的健康风险。

在全球范围内,道路灰尘是任何城市环境中可吸入颗粒物的主要来源。这项研究旨在评估印度韦洛尔市道路尘埃的元素组成,并评估其健康风险。为此,从研究区域的18个地点收集了灰尘样品。使用电感耦合等离子体发射光谱法消化收集的样品并分析其中约25种元素,其中19种元素的浓度大于仪器的检测极限(Al,Ba,Ca,Mg,Sr,Co,Cr,Cu ,Fe,Ga,Zn,In,K,Li,Mn,Na,Ni,Pb和Rb)。Fe(22,638.23 mg / kg),Ca(13,439.47 mg / kg),Al(8445.89 mg / kg)和Mg(3381.20 mg / kg)的最高平均浓度最高。计算10种微量元素的富集因子(EF)和污染因子(CF):Cu,Co,Cr,Ga,Mn,Ni,Pb,Rb,Sr和Zn。元素Ga和Zn显示出最高的EF和CF。资料来源确认,地壳物质和运输是潜在有毒元素(PTE)的主要来源。此外,针对9个PTE执行健康风险评估,并确定Fe,Pb,Cr和Co是具有最高健康指数的元素。这些元素的健康指数表明可能存在健康风险。摄入是主要途径,与成人相比,儿童的风险更高。这些元素的健康指数表明可能存在健康风险。摄入是主要途径,与成人相比,儿童的风险更高。这些元素的健康指数表明可能存在健康风险。摄入是主要途径,与成人相比,儿童的风险更高。
更新日期:2020-02-06
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