Oxidative potential of PM10 and PM2.5 collected at high air pollution site related to chemical composition: Krakow case study
PBN-AR
Instytucja
Wydział Fizyki i Informatyki Stosowanej (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Air Quality Atmosphere and Health (25pkt w roku publikacji)
ISSN
1873-9318
EISSN
1873-9326
Wydawca
Springer International Publishing AG
DOI
Rok publikacji
2017
Numer zeszytu
9
Strony od-do
1123--1137
Numer tomu
10
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
1
Autorzy
(liczba autorów: 8)
Pozostali autorzy
+ 7
Słowa kluczowe
EN
trace elements
air pollution
metals
particulate matter
antioxidants
oxidative potential
Streszczenia
Język
EN
Treść
Measurements of the oxidative potential (OP) of airborne particulate matter may be applied for the assessment of the health-based exposure by integrating various biologically relevant properties of particles. This study aimed at the determination of oxidative activity of two size fractions of particulate using the ascorbic acid (AA) and reduced glutathione (GSH) assay. Samples of PM were collected in Krakow, one of the most polluted cities in Poland, in the city centre. Samples were collected during wintertime, when heating sources used in residential areas have significant influence on the concentrations of particulate matter in the air. PM10 and PM2.5 concentrations varied from 8.9 to 92.5 μg m−3. Samples were chemically analysed for elemental carbon, organic carbon, ions and metals. PM2.5 was found as a more oxidative active fraction, where OPAA and OPGSH depletions were up to 81.7 and 132.0 μg m−3, respectively. The average values of OPAA of PM10 and PM2.5 were similar and equalled 40.8 and 37.2 μg m−3, respectively. The average value of OPGSH of PM2.5 equalled 56.7 μg m−3 and was 3.5 times higher than OPGSH of PM10. The loss of AA amount in PM10 and PM2.5 and the depletion of GSH in PM2.5 were best described by the pseudo second-order kinetics model. The kinetics of the GSH depletion reaction in PM10 was best described by the pseudo first-order kinetics model. The strong correlations between carbonaceous and metallic constituents of PM and oxidative potential suggest their relevance in participation in oxidative activity of particulate matter. © 2017 Springer Science+Business Media B.V.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:110942
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