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Article

Application of k0-INAA Method in Preliminary Characterization of KRISS Urban Airborne Particulate Matter Certified Reference Material

1
Inorganic Metrology Group, Division of Chemical and Biological Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Korea
2
Neutron and Radioisotope Application Research Division, Korea Atomic Energy Research Institute, Daejeon 34057, Korea
3
Department of Environmental Sciences, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2020, 10(19), 6649; https://doi.org/10.3390/app10196649
Received: 27 August 2020 / Revised: 17 September 2020 / Accepted: 21 September 2020 / Published: 23 September 2020
We report comprehensive elemental composition studies on the average urban airborne particulate matters (PMs) collected in the Greater Seoul area, Korea, in 2019 to identify regional and chronological characteristics of the sample as a candidate for certified reference material (CRM), using k0-based single comparator instrumental neutron activation analysis (k0-INAA). The method was successfully validated by comparing the analysis result of a similar matrix CRM (SRM 1648a urban particulate matter) of National Institute of Standards and Technology, USA, with corresponding certified values. The same methodology was applied to determine various elements in candidate environmental materials for future CRM development, including the urban PMs and incineration ashes, to investigate the possibility of using k0-INAA for certification of relevant reference materials. In total, 46 elements in the urban PM sample were analyzed and their concentration levels were compared with the urban PMs collected in the 1970s in St. Louis, USA. Urban PMs of Korea Research Institute of Standards and Science in 2019 contain significantly lower levels of hazardous elements, such as As, Cd, Cr, Hg, and Pb, as compared to those of the 1970s, which can be attributed to the reduced air pollution by environmental regulation and technological innovation. The potential major source of urban airborne PMs was also discussed. View Full-Text
Keywords: urban airborne particulates; k0-INAA validation; certified reference material; hazardous elements; source identification urban airborne particulates; k0-INAA validation; certified reference material; hazardous elements; source identification
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MDPI and ACS Style

Cho, H.; Dasari, K.B.; Lim, M.C.; Sun, G.M.; Jaćimović, R.; Yim, Y.-H. Application of k0-INAA Method in Preliminary Characterization of KRISS Urban Airborne Particulate Matter Certified Reference Material. Appl. Sci. 2020, 10, 6649. https://doi.org/10.3390/app10196649

AMA Style

Cho H, Dasari KB, Lim MC, Sun GM, Jaćimović R, Yim Y-H. Application of k0-INAA Method in Preliminary Characterization of KRISS Urban Airborne Particulate Matter Certified Reference Material. Applied Sciences. 2020; 10(19):6649. https://doi.org/10.3390/app10196649

Chicago/Turabian Style

Cho, Hana, Kishore B. Dasari, Myung C. Lim, Gwang M. Sun, Radojko Jaćimović, and Yong-Hyeon Yim. 2020. "Application of k0-INAA Method in Preliminary Characterization of KRISS Urban Airborne Particulate Matter Certified Reference Material" Applied Sciences 10, no. 19: 6649. https://doi.org/10.3390/app10196649

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