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Bibliographic record number: 854732

Journal

Authors: Šoštarić, Marko; Petrinec, Branko; Babić, Dinko
Title: Air sampling by pumping through a filter: effects of air flow rate, concentration, and decay of airborne substances
Source: Arhiv za higijenu rada i toksikologiju (0004-1254) 67 (2016), 4; 326-331
Paper type: article
Keywords: air sampling filters ; particle concentration ; radioactivity ; substance decomposition
Abstract:
This paper tackles the issue of interpreting the number of airborne particles adsorbed on a filter through which a certain volume of sampled air has been pumped. This number is equal to the product of the pumped volume and particle concentration in air, but only if the concentration is constant over time and if there is no substance decomposition on the filter during sampling. If this is not the case, one must take into account the inconstancy of the concentration and the decay law for a given substance, which is complicated even further if the flow rate through the filter is not constant. In this paper, we develop a formalism which considers all of these factors, resulting in a single, compact expression of general applicability. The use of this expression is exemplified by addressing a case of sampling airborne radioactive matter, where the decay law is already well known. This law is combined with three experimentally observed time dependences of the flow rate and two models for the time dependence of the particle concentration. We also discuss the implications of these calculations for certain other situations of interest to environmental studies.
Project / theme: 022-0222882-2335, 022-0222882-2823
Original language: ENG
Citation databases: Web of Science: Science Citation
Scopus
MEDLINE
Web of Science: Science Citation Index Expanded
Category: Znanstveni
Research fields:
Physics
Full paper text: 854732.Air_sampling_by_pumping_through_a_filter.pdf (tekst priložen 9. Sij. 2017. u 12:47 sati)
URL: http://hrcak.srce.hr/170516
https://www.degruyter.com/view/j/aiht.2016.67.issue-4/aiht-2016-67-2885/aiht-2016-67-2885.xml
Broj citata:
Altmetric:
DOI: 10.1515/aiht-2016-67-2885
URL cjelovitog rada:
Google Scholar: Air sampling by pumping through a filter: effects of air flow rate, concentration, and decay of airborne substances
Contrib. to CROSBI by: Branko Petrinec (petrinec@imi.hr), 9. Sij. 2017. u 12:47 sati



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