title: Monitoring of trace element atmospheric deposition using dry and wet moss bags: accumulation capacity versus exposure time.
abstract: To clarify the peculiarities of trace element accumulation in moss bags technique (active biomonitoring), samples of the moss Sphagnum girgensohnii Rusow were exposed in bags with and without irrigation for 15 days up to 5 months consequently in the semi-urban area of Belgrade (Serbia) starting from July 2007. The accumulation capacity for 49 elements determined by ICP-MS in wet and dry moss bags was compared. The concentration of some elements, i.e. Al, V, Cr, Fe, Zn, As, Se, Sr, Pb, and Sm increased continuously with exposure time in both dry and wet moss bags, whereas concentration of Na, Cl, K, Mn, Rb, Cs, and Ta decreased. Irrigation of moss resulted in a higher accumulation capacity for most of the elements, especially for Cr, Zn, As, Se, Br, and Sr. Principal component analysis was performed on the datasets of element concentrations in wet and dry moss bags for source identification. Results of the factor analysis were similar but not identical in the two cases due to possible differences in element accumulation mechanisms.
authors.affiliation: Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia.
authors.forename: M
authors.initials: M
authors.lastname: Anicić
authors.forename: M
authors.initials: M
authors.lastname: Tomasević
authors.forename: M
authors.initials: M
authors.lastname: Tasić
authors.forename: S
authors.initials: S
authors.lastname: Rajsić
authors.forename: A
authors.initials: A
authors.lastname: Popović
authors.forename: M V
authors.initials: MV
authors.lastname: Frontasyeva
authors.forename: S
authors.initials: S
authors.lastname: Lierhagen
authors.forename: E
authors.initials: E
authors.lastname: Steinnes
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001272:Atmosphere; D004781:Environmental Exposure / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods*; D013058:Mass Spectrometry / Q000379:methods; D025341:Principal Component Analysis; D012621:Seasons; D055771:Serbia; D044003:Sphagnopsida / Q000737:chemistry*; D013997:Time Factors; D014131:Trace Elements / Q000032:analysis*; D014504:Urban Health / Q000706:statistics & numerical data
chemical_list: D000393:Air Pollutants; D014131:Trace Elements