title: Diurnal Variations of Air-Soil Exchange of Semivolatile Organic Compounds (PAHs, PCBs, OCPs, and PBDEs) in a Central European Receptor Area.
abstract: Concentrations of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), and polybrominated diphenyl ethers (PBDEs) in air and soil, their fugacities, and the experimental soil-air partitioning coefficient (KSA) were determined at two background sites in the Gt. Hungarian Plain in August 2013. The concentrations of the semivolatile organic compounds (SOCs) in the soil were not correlated with the organic carbon content but with two indirect parameters of mineralization and aromaticity, suggesting that soil organic matter quality is an important parameter affecting the sorption of SOCs onto soils. Predictions based on the assumption that absorption is the dominant process were in good agreement with the measurements for PAHs, OCPs, and the low chlorinated PCBs. In general, soils were found to be a source of PAHs, high chlorinated PCBs, the majority of OCPs and PBDEs, and a sink for the low chlorinated PCBs and γ-hexachlorocyclohexane. Diurnal variations in the direction of the soil-air exchange were found for two compounds (i.e., pentachlorobenzene and p,p'-dichlorodiphenyldichloroethane), with volatilization during the day and deposition in the night. The concentrations of most SOCs in the near-ground atmosphere were dominated by revolatilization from the soil.
authors.affiliation: Multiphase Chemistry Department, Max Planck Institute for Chemistry , Hahn-Meitner-Weg 1, 55128 Mainz, Germany.
authors.forename: Céline
authors.initials: C
authors.lastname: Degrendele
authors.affiliation: Research Centre for Toxic Compounds in the Environment, Masaryk University , Kamenice 5, 625 00 Brno, Czech Republic.
authors.forename: Ondřej
authors.initials: O
authors.lastname: Audy
authors.affiliation: Research Centre for Toxic Compounds in the Environment, Masaryk University , Kamenice 5, 625 00 Brno, Czech Republic.
authors.forename: Jakub
authors.initials: J
authors.lastname: Hofman
authors.affiliation: Institute for Environmental Sciences, University of Koblenz-Landau , Fortstrasse 7, 76829 Landau, Germany.
authors.forename: Jiři
authors.initials: J
authors.lastname: Kučerik
authors.affiliation: Research Centre for Toxic Compounds in the Environment, Masaryk University , Kamenice 5, 625 00 Brno, Czech Republic.
authors.forename: Petr
authors.initials: P
authors.lastname: Kukučka
authors.affiliation: Research Centre for Toxic Compounds in the Environment, Masaryk University , Kamenice 5, 625 00 Brno, Czech Republic.
authors.forename: Marie D
authors.initials: MD
authors.lastname: Mulder
authors.affiliation: Research Centre for Toxic Compounds in the Environment, Masaryk University , Kamenice 5, 625 00 Brno, Czech Republic.
authors.forename: Petra
authors.initials: P
authors.lastname: Přibylová
authors.affiliation: Research Centre for Toxic Compounds in the Environment, Masaryk University , Kamenice 5, 625 00 Brno, Czech Republic.
authors.forename: Roman
authors.initials: R
authors.lastname: Prokeš
authors.affiliation: Research Centre for Toxic Compounds in the Environment, Masaryk University , Kamenice 5, 625 00 Brno, Czech Republic.
authors.forename: Milan
authors.initials: M
authors.lastname: Šáňka
authors.affiliation: Institute for Environmental Sciences, University of Koblenz-Landau , Fortstrasse 7, 76829 Landau, Germany.
authors.forename: Gabriele E
authors.initials: GE
authors.lastname: Schaumann
authors.affiliation: Multiphase Chemistry Department, Max Planck Institute for Chemistry , Hahn-Meitner-Weg 1, 55128 Mainz, Germany.|Research Centre for Toxic Compounds in the Environment, Masaryk University , Kamenice 5, 625 00 Brno, Czech Republic.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Lammel
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001272:Atmosphere; D002722:Chlorobenzenes / Q000032:analysis; D004784:Environmental Monitoring; D001556:Hexachlorocyclohexane / Q000032:analysis; D006814:Hungary; D006843:Hydrocarbons, Chlorinated / Q000032:analysis; D010575:Pesticides / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D002722:Chlorobenzenes; D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D011084:Polycyclic Aromatic Hydrocarbons; D012987:Soil; D012989:Soil Pollutants; D055549:Volatile Organic Compounds; D001556:Hexachlorocyclohexane; C003060:pentachlorobenzene; D011078:Polychlorinated Biphenyls