Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polycyclic aromatic hydrocarbon adsorption on selected solid particulate matter fractions
https://orcid.org/0000-0002-5025-6122
Abstract This article is directed to evaluating the proportion of polycyclic aromatic hydrocarbons (PAHs) captured on particulate matter (PM) classified as PM2.5–10 and PM2.5, i.e. particulate matter of aerodynamic diameter 2.5–10 μm and 2.5 μm. During three week-long and one 2-day campaigns, 22 paired air samples were taken in parallel of PM10 and PM2.5 fractions inside the Mrázovka tunnel in Prague, Czech Republic. Following sample preparation, concentrations of individual PAHs were determined using gas chromatography combined with mass spectrometry. Concentrations of individual pairs of each PAH were tested by the nonparametric method using Spearman's rank correlation coefficient. At significance level p < 0.01, it was demonstrated that all individual PAHs, including their totals, were bound to the PM2.5 fraction. Exceptions were seen in the cases of acenaphthylene, acenaphthene, and indeno[1,2,3-cd]pyrene, the concentrations of which fluctuated around the detection limit, where increased measurement error can be expected.
Highlights We measured the concentrations of polycyclic aromatic hydrocarbons (PAHs). The concentrations were measured on the particulate matter (PM10, PM2.5). For determination of PAHs distribution on PM was used statistical Spearman's test. It was found that almost all PAHs determined are to be found on PM2.5.
Polycyclic aromatic hydrocarbon adsorption on selected solid particulate matter fractions
https://orcid.org/0000-0002-5025-6122
Abstract This article is directed to evaluating the proportion of polycyclic aromatic hydrocarbons (PAHs) captured on particulate matter (PM) classified as PM2.5–10 and PM2.5, i.e. particulate matter of aerodynamic diameter 2.5–10 μm and 2.5 μm. During three week-long and one 2-day campaigns, 22 paired air samples were taken in parallel of PM10 and PM2.5 fractions inside the Mrázovka tunnel in Prague, Czech Republic. Following sample preparation, concentrations of individual PAHs were determined using gas chromatography combined with mass spectrometry. Concentrations of individual pairs of each PAH were tested by the nonparametric method using Spearman's rank correlation coefficient. At significance level p < 0.01, it was demonstrated that all individual PAHs, including their totals, were bound to the PM2.5 fraction. Exceptions were seen in the cases of acenaphthylene, acenaphthene, and indeno[1,2,3-cd]pyrene, the concentrations of which fluctuated around the detection limit, where increased measurement error can be expected.
Highlights We measured the concentrations of polycyclic aromatic hydrocarbons (PAHs). The concentrations were measured on the particulate matter (PM10, PM2.5). For determination of PAHs distribution on PM was used statistical Spearman's test. It was found that almost all PAHs determined are to be found on PM2.5.
Polycyclic aromatic hydrocarbon adsorption on selected solid particulate matter fractions
https://orcid.org/0000-0002-5025-6122
Abstract This article is directed to evaluating the proportion of polycyclic aromatic hydrocarbons (PAHs) captured on particulate matter (PM) classified as PM2.5–10 and PM2.5, i.e. particulate matter of aerodynamic diameter 2.5–10 μm and 2.5 μm. During three week-long and one 2-day campaigns, 22 paired air samples were taken in parallel of PM10 and PM2.5 fractions inside the Mrázovka tunnel in Prague, Czech Republic. Following sample preparation, concentrations of individual PAHs were determined using gas chromatography combined with mass spectrometry. Concentrations of individual pairs of each PAH were tested by the nonparametric method using Spearman's rank correlation coefficient. At significance level p < 0.01, it was demonstrated that all individual PAHs, including their totals, were bound to the PM2.5 fraction. Exceptions were seen in the cases of acenaphthylene, acenaphthene, and indeno[1,2,3-cd]pyrene, the concentrations of which fluctuated around the detection limit, where increased measurement error can be expected.
Highlights We measured the concentrations of polycyclic aromatic hydrocarbons (PAHs). The concentrations were measured on the particulate matter (PM10, PM2.5). For determination of PAHs distribution on PM was used statistical Spearman's test. It was found that almost all PAHs determined are to be found on PM2.5.
Polycyclic aromatic hydrocarbon adsorption on selected solid particulate matter fractions
Bozek, Frantisek (Autor:in) / Huzlik, Jiri (Autor:in) / Pawelczyk, Adam (Autor:in) / Hoza, Ignac (Autor:in) / Naplavova, Magdalena (Autor:in) / Jedlicka, Jiri (Autor:in)
Atmospheric Environment ; 126 ; 128-135
07.11.2015
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Particulate-bound polycyclic aromatic hydrocarbon sources and determinants in residential homes
| Online Contents | 2016