NDLI: Multi-elemental characterization of indoor aerosols in elderly care centers

Content Provider	Springer Nature Link
Author	Almeida Silva, M. Almeida, S. M. Wolterbeek, H. T.
Copyright Year	2014
Abstract	In general, elders spend more than 90 % of their daily time in indoor environments, leading to long exposure periods to indoor air pollutants. Although the recognized importance of the elders’ exposure to air pollution, the research studies have been paid attention essentially to other susceptible groups of people such as children. In order to fulfill this gap in the knowledge, the objective of this work was to perform a chemical characterization of air suspended particles collected in four elderly care centers (ECCs) by using k $_{0}$ instrumental neutron activation analysis (k $_{0}$-INAA). For that, particulate matter with aerodynamic diameter lower than 10 μm (PM$_{10}$) was sampled in ECCs’ bedrooms, living-rooms and, at the same time, in the respective outdoors. The collected filters were irradiated at the Portuguese Research Reactor (nominal power: 1 MW) and measured using a coaxial germanium detector for the application of the k $_{0}$-INAA. Results showed that the PM$_{10}$ indoor concentrations did not exceed the national and the international limit values and that PM$_{10}$ concentration in living-rooms were significantly higher than in bedrooms. Zn and Cr presented higher concentrations in the indoor environments indicating the existence of indoor sources for these elements. The most enriched elements in relation to a reference soil were Sb, Zn, As and Cr indicating their association with anthropogenic sources. This article represents an innovation in the field of environmental chemistry since the PM chemical components have never been characterized in ECCs.
Starting Page	679
Ending Page	684
Page Count	6
File Format	PDF
ISSN	02365731
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume Number	300
Issue Number	2
e-ISSN	15882780
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-02-05
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Elderly Indoor Chemical elements k $_{0}$-INAA Nuclear Chemistry Physical Chemistry Nuclear Physics, Heavy Ions, Hadrons Diagnostic Radiology Inorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Pollution Health, Toxicology and Mutagenesis Radiology, Nuclear Medicine and Imaging Analytical Chemistry Public Health, Environmental and Occupational Health Nuclear Energy and Engineering

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