PM chemical composition and oxidative potential of the soluble fraction of particles at two sites in the urban area of Milan, Northern Italy
作者： Maria Grazia Perrone , Jun Zhou , Mery Malandrino , Giorgia Sangiorgi , Cristiana Rizzi
DOI: 10.1016/J.ATMOSENV.2015.12.040
关键词:
摘要: Abstract Recent epidemiological evidence support the hypothesis that health effects from inhalation of air particles are governed by more than just particle mass, since specific chemical components have been identified as important contributors to mortality and hospitality admissions. We studied composition oxidative potential (OP) total suspended (TSP) samples Milan at two sites with different traffic loads: a site in low emission zone (LEZ) (TR) outside. Two a-cellular assays; dithiothreitol (OPDTT) 2′,7' dichlorofluorescin (OPDCFH) were used characterize OP soluble fraction particles. TSP LEZ showed significantly lower concentrations traffic-related compared TR. The decrease TR was maximum for EC, LEZ/TR ratio 0.64 (±0.18), significant reduction (p measures, expressed OP/m3 or OP/mg, comparable between both OPDTT OPDCFH, thus not showing any impact local on values sites. OPDCFH contrasting seasonal daily trends, indicating assays gave complementary information Milan. resulted be sensitive properties PM samples. correlated positively only Global Radiation (Spearman's rs = 0.38, p
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sci-hub.se 参考文章(35)
Yoshito Kumagai, Sachie Koide, Keiko Taguchi, Akiko Endo, Yumi Nakai, Toshikazu Yoshikawa, Nobuhiro Shimojo, Oxidation of proximal protein sulfhydryls by phenanthraquinone, a component of diesel exhaust particles. Chemical Research in Toxicology. ,vol. 15, pp. 483- 489 ,(2002) , 10.1021/TX0100993
J. G. Charrier, N. K. Richards-Henderson, K. J. Bein, A. S. McFall, A. S. Wexler, C. Anastasio, Oxidant production from source-oriented particulate matter – Part 1: Oxidative potential using the dithiothreitol (DTT) assay Atmospheric Chemistry and Physics. ,vol. 15, pp. 2327- 2340 ,(2015) , 10.5194/ACP-15-2327-2015
S.J. Fuller, F.P.H. Wragg, J. Nutter, M. Kalberer, Comparison of on-line and off-line methods to quantify reactive oxygen species (ROS) in atmospheric aerosols Atmospheric Environment. ,vol. 92, pp. 97- 103 ,(2014) , 10.1016/J.ATMOSENV.2014.04.006
Weruka Rattanavaraha, Eli Rosen, Haofei Zhang, Qianfeng Li, Karun Pantong, Richard M. Kamens, The reactive oxidant potential of different types of aged atmospheric particles: An outdoor chamber study Atmospheric Environment. ,vol. 45, pp. 3848- 3855 ,(2011) , 10.1016/J.ATMOSENV.2011.04.002
Aileen Yang, Bryan Hellack, Daan Leseman, Bert Brunekreef, Thomas A.J. Kuhlbusch, Flemming R. Cassee, Gerard Hoek, Nicole A.H. Janssen, Temporal and spatial variation of the metal-related oxidative potential of PM2.5 and its relation to PM2.5 mass and elemental composition Atmospheric Environment. ,vol. 102, pp. 62- 69 ,(2015) , 10.1016/J.ATMOSENV.2014.11.053
Alam S Hasson, Suzanne E Paulson, An investigation of the relationship between gas-phase and aerosol-borne hydroperoxides in urban air Journal of Aerosol Science. ,vol. 34, pp. 459- 468 ,(2003) , 10.1016/S0021-8502(03)00002-8
Xinlei Ge, Anthony S. Wexler, Simon L. Clegg, Atmospheric amines - Part I. A review Atmospheric Environment. ,vol. 45, pp. 524- 546 ,(2011) , 10.1016/J.ATMOSENV.2010.10.012
Qianfeng Li, Anna Wyatt, Richard M. Kamens, Oxidant generation and toxicity enhancement of aged-diesel exhaust Atmospheric Environment. ,vol. 43, pp. 1037- 1042 ,(2009) , 10.1016/J.ATMOSENV.2008.11.018
Arian Saffari, Nancy Daher, Constantini Samara, Dimitra Voutsa, Athanasios Kouras, Evangelia Manoli, Olga Karagkiozidou, Christos Vlachokostas, Nicolas Moussiopoulos, Martin M. Shafer, James J. Schauer, Constantinos Sioutas, Increased biomass burning due to the economic crisis in Greece and its adverse impact on wintertime air quality in Thessaloniki. Environmental Science & Technology. ,vol. 47, pp. 13313- 13320 ,(2013) , 10.1021/ES403847H
J. G. Charrier, C. Anastasio, On dithiothreitol (DTT) as a measure of oxidative potential for ambient particles: evidence for the importance of soluble transition metals. Atmospheric Chemistry and Physics. ,vol. 12, pp. 9321- 9333 ,(2012) , 10.5194/ACP-12-9321-2012