naa a22 4500 510751318 CHVBK 20180411083105.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s11270-013-1503-7 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1503-7 Urban BTEX Spatiotemporal Exposure Assessment by Chemometric Expertise [Elektronische Daten] [Aleksander Astel, Luigi Giorgini, Andrea Mistaro, Italo Pellegrini, Sergio Cozzutto, Pierluigi Barbieri] Normative regulations on benzene in fuels and urban management strategies are expected to improve air quality. The present study deals with the application of self-organizing maps (SOMs) in order to explore the spatiotemporal variations of benzene, toluene, ethylbenzene, and xylene levels in an urban atmosphere. Temperature, wind speed, and concentration values of these four volatile organic compounds were measured after passive sampling at 21 different sampling sites located in the city of Trieste (Italy) in the framework of a multi-year long-term monitoring program. SOM helps in defining pollution patterns and changes in the urban context, showing clear improvements for what concerns benzene, toluene, ethylbenzene, and xylene concentrations in air for the 2001-2008 timeframe. The Author(s), 2013 BTEX nationallicence Passive samplers nationallicence Self-organizing maps nationallicence Urban zonation nationallicence Spatiotemporal trends nationallicence Trieste nationallicence Astel Aleksander Biology and Environmental Protection Institute, Pomeranian University, 22a Arciszewskiego Str., 76-200, Słupsk, Poland aut Giorgini Luigi Department and Laboratory of Trieste, A.R.P.A.-F.V.G., Via La Marmora 13, 34100, Trieste, Italy aut Mistaro Andrea Department and Laboratory of Trieste, A.R.P.A.-F.V.G., Via La Marmora 13, 34100, Trieste, Italy aut Pellegrini Italo Department and Laboratory of Trieste, A.R.P.A.-F.V.G., Via La Marmora 13, 34100, Trieste, Italy aut Cozzutto Sergio D.S.C.F., University of Trieste, Via Giorgieri, 1, 34127, Trieste, Italy aut Barbieri Pierluigi D.S.C.F., University of Trieste, Via Giorgieri, 1, 34127, Trieste, Italy aut Water, Air, & Soil Pollution Springer Netherlands 224/4(2013-04-01), 1-17 0049-6979 224:4<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1503-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1503-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Astel Aleksander Biology and Environmental Protection Institute, Pomeranian University, 22a Arciszewskiego Str., 76-200, Słupsk, Poland aut NATIONALLICENCE 700 1- Giorgini Luigi Department and Laboratory of Trieste, A.R.P.A.-F.V.G., Via La Marmora 13, 34100, Trieste, Italy aut NATIONALLICENCE 700 1- Mistaro Andrea Department and Laboratory of Trieste, A.R.P.A.-F.V.G., Via La Marmora 13, 34100, Trieste, Italy aut NATIONALLICENCE 700 1- Pellegrini Italo Department and Laboratory of Trieste, A.R.P.A.-F.V.G., Via La Marmora 13, 34100, Trieste, Italy aut NATIONALLICENCE 700 1- Cozzutto Sergio D.S.C.F., University of Trieste, Via Giorgieri, 1, 34127, Trieste, Italy aut NATIONALLICENCE 700 1- Barbieri Pierluigi D.S.C.F., University of Trieste, Via Giorgieri, 1, 34127, Trieste, Italy aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/4(2013-04-01), 1-17 0049-6979 224:4<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer