title: Atmospheric pollution in an urban environment by tree bark biomonitoring - part II: Sr, Nd and Pb isotopic tracing.
abstract: The harmful effect of manmade particles on natural processes and human health is documented by a large number of studies showing a positive correlation between particulate matter (PM) concentration and health effects. Diminution of this health risk necessitates among others the precise knowledge of the particle sources, their physical and chemical properties and their dissemination in the environment. Pb isotope ratios have been successfully used during the past decades as tracers of anthropogenic Pb disseminated in the biosphere. Here we show that tree bark biomonitoring with lead (Pb), strontium (Sr) and neodymium (Nd) isotope ratios as tracers allow a thorough analysis of the impacts of industrial and other anthropogenic emissions on the urban environment. This is the first comprehensive multi-isotope tracer study of atmospheric pollution in an urban environment allowing to identify and to integrate the different plume paths of emissions in a digital map system. This innovative approach might become an important tool for environmental management and policy-making processes dealing especially with risks and surveillance of air quality in the urban environment.
authors.affiliation: Laboratoire D'Hydrologie et de Géochimie de Strasbourg, Université de Strasbourg, EOST, UMR 7517 CNRS, 1 rue Blessig, 67084 Strasbourg cedex, France. fgueguen@unistra.fr
authors.forename: Florence
authors.initials: F
authors.lastname: Guéguen
authors.forename: Peter
authors.initials: P
authors.lastname: Stille
authors.forename: Majdi
authors.initials: M
authors.lastname: Lahd Geagea
authors.forename: Thierry
authors.initials: T
authors.lastname: Perrone
authors.forename: François
authors.initials: F
authors.lastname: Chabaux
mesh_terms: D001272:Atmosphere / Q000737:chemistry*; D002947:Cities; D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis / Q000737:chemistry; D007554:Isotopes; D007854:Lead / Q000032:analysis / Q000737:chemistry; D008670:Metals / Q000032:analysis* / Q000737:chemistry*; D009354:Neodymium / Q000032:analysis / Q000737:chemistry; D024301:Plant Bark / Q000737:chemistry*; D013324:Strontium / Q000032:analysis / Q000737:chemistry
chemical_list: D004785:Environmental Pollutants; D007554:Isotopes; D008670:Metals; D009354:Neodymium; D007854:Lead; D013324:Strontium