title: Space and time resolved monitoring of airborne particulate matter in proximity of a traffic roundabout in Sweden.
abstract: Concerns over exposure to airborne particulate matter (PM) are on the rise. Currently monitoring of PM is done on the basis of interpolating a mass of PM by volume (μg/m(3)) but has the drawback of not taking the chemical nature of PM into account. Here we propose a method of collecting PM at its emission source and employing automated analysis with scanning electron microscopy associated with EDS-analysis together with light scattering to discern the chemical composition, size distribution, and time and space resolved structure of PM emissions in a heavily trafficated roundabout in Sweden. Multivariate methods (PCA, ANOVA) indicate that the technogenic marker Fe follows roadside dust in spreading from the road, and depending on time and location of collection, a statistically significant difference can be seen, adding a useful tool to the repertoiré of detailed PM monitoring and risk assessment of local emission sources.
authors: Dept. of Chemistry, Swedish University of Agricultural Sciences (SLU) Biocenter, Box 7015, SE-75007 Uppsala, Sweden. Electronic address: kai.wilkinson@slu.se.
authors: Kai E
authors: KE
authors: Wilkinson
authors: Johanna
authors: J
authors: Lundkvist
authors: Julia
authors: J
authors: Netrval
authors: Mats
authors: M
authors: Eriksson
authors: Gulaim A
authors: GA
authors: Seisenbaeva
authors: Vadim G
authors: VG
authors: Kessler
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000706:statistics & numerical data; D000704:Analysis of Variance; D004391:Dust / Q000032:analysis; D004784:Environmental Monitoring; D052638:Particulate Matter / Q000032:analysis*; D062211:Spatio-Temporal Analysis; D013548:Sweden; D001335:Vehicle Emissions / Q000032:analysis
chemical_list: D000393:Air Pollutants; D004391:Dust; D052638:Particulate Matter; D001335:Vehicle Emissions
keywords: Health; PM; Pollution; SEM–EDS; Traffic