Characteristics of the elemental compositions of particulate matter at a subway platform using INAA and XRF

Proceedings in Radiochemistry Pub Date : 2011-09-01 DOI:10.1524/RCPR.2011.0054

J. M. Lim, J. Jeong, B. Jung, J. Lee, J. Moon, Y. Chung, K. Kim

{"title":"Characteristics of the elemental compositions of particulate matter at a subway platform using INAA and XRF","authors":"J. M. Lim, J. Jeong, B. Jung, J. Lee, J. Moon, Y. Chung, K. Kim","doi":"10.1524/RCPR.2011.0054","DOIUrl":null,"url":null,"abstract":"Abstract In this study, a total of 21 elements were determined from PM2.5 and PM10 samples collected at one subway station using INAA and XRF. In order to assess the pollution status and distribution characteristics in a subway station, the absolute concentration levels, concentration ratios, and crustal enrichment factors of these elements were analyzed. PM2.5 concentrations in the subway station varied in the range of 24.8 to 72.6 μg m−3 (average ± standard deviation: 42.6 ± 10.6 μg m−3), while those of PM10 from 38.0 to 101 μg m−3 (67.2 ± 15.5 μg m−3). The relative contribution of elemental components in each particle fraction accounted for about 42 and 44%, respectively. Out of all metals, Fe was predominant to represent about 29 and 27% of each particle fraction. In contrast, the crustal sources were estimated to contribute to about 3.7 and 2.3% of the total Fe concentrations, respectively. Thus, one can conclude that considerable quantities of airborne Fe particles originated mainly from subway sources, probably due to the wearing of the steel products like wheel, rail, brake, etc.","PeriodicalId":338467,"journal":{"name":"Proceedings in Radiochemistry","volume":"13 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings in Radiochemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1524/RCPR.2011.0054","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

Abstract

Abstract In this study, a total of 21 elements were determined from PM2.5 and PM10 samples collected at one subway station using INAA and XRF. In order to assess the pollution status and distribution characteristics in a subway station, the absolute concentration levels, concentration ratios, and crustal enrichment factors of these elements were analyzed. PM2.5 concentrations in the subway station varied in the range of 24.8 to 72.6 μg m−3 (average ± standard deviation: 42.6 ± 10.6 μg m−3), while those of PM10 from 38.0 to 101 μg m−3 (67.2 ± 15.5 μg m−3). The relative contribution of elemental components in each particle fraction accounted for about 42 and 44%, respectively. Out of all metals, Fe was predominant to represent about 29 and 27% of each particle fraction. In contrast, the crustal sources were estimated to contribute to about 3.7 and 2.3% of the total Fe concentrations, respectively. Thus, one can conclude that considerable quantities of airborne Fe particles originated mainly from subway sources, probably due to the wearing of the steel products like wheel, rail, brake, etc.

查看原文本刊更多论文

利用红外光谱和x射线辐射分析地铁站台颗粒物元素组成特征

摘要本研究利用红外光谱和x射线荧光光谱对某地铁站的PM2.5和PM10样品进行了21种元素的测定。为了评价某地铁站点的污染状况和分布特征，分析了这些元素的绝对浓度水平、浓度比和地壳富集因素。地铁站点PM2.5浓度变化范围为24.8 ~ 72.6 μ m−3(平均±标准差为42.6±10.6 μ m−3)，PM10浓度变化范围为38.0 ~ 101 μ m−3(67.2±15.5 μ m−3)。各颗粒组分中元素组分的相对贡献率分别约为42%和44%。在所有金属中，铁占主导地位，分别占各颗粒分数的29%和27%。相比之下，地壳来源估计分别贡献了约3.7和2.3%的总铁浓度。因此，可以得出结论，空气中相当数量的铁颗粒主要来自地铁，可能是由于车轮、轨道、制动器等钢铁产品的磨损。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Proceedings in Radiochemistry

自引率

0.00%

发文量