title: Development of a methodology examining the behaviours of VOCs source apportionment with micro-meteorology analysis in an urban and industrial area.
abstract: During summer 2009, online measurements of 25 Volatile Organic Compounds (VOCs) from C6 to C10 as well as micro-meteorological parameters were simultaneously performed in the industrial city of Dunkerque. With the obtained data set, we developed a methodology to examine how the contributions of different source categories depend on atmospheric turbulences, and the results provided identification of emission modes. Eight factors were resolved by using Positive Matrix Factorization model and three of them were associated with mixed sources. The observed behaviours of contributions with turbulences lead to attribute some factors with sources at ground level, and some other factors with sources in the upper part of surface layer. The impact of vertical turbulence on the pollutant dispersion is also affected by the distance between sources and receptor site.
authors.affiliation: Université Lille Nord de France, Lille, France. yang.xiang@univ-littoral.fr
authors.forename: Yang
authors.initials: Y
authors.lastname: Xiang
authors.forename: Hervé
authors.initials: H
authors.lastname: Delbarre
authors.forename: Stéphane
authors.initials: S
authors.lastname: Sauvage
authors.forename: Thierry
authors.initials: T
authors.lastname: Léonardis
authors.forename: Marc
authors.initials: M
authors.lastname: Fourmentin
authors.forename: Patrick
authors.initials: P
authors.lastname: Augustin
authors.forename: Nadine
authors.initials: N
authors.lastname: Locoge
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D007221:Industry; D055904:Meteorology / Q000379:methods*; D014506:Urban Renewal; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D055549:Volatile Organic Compounds