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Environ Sci Technol

Title:		"Diurnal Variations of Air-Soil Exchange of Semivolatile Organic Compounds (PAHs, PCBs, OCPs, and PBDEs) in a Central European Receptor Area"
Author(s):		Degrendele C; Audy O; Hofman J; Kucerik J; Kukucka P; Mulder MD; Pribylova P; Prokes R; Sanka M; Schaumann GE; Lammel G;
Address:		"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. Institute for Environmental Sciences, University of Koblenz-Landau , Fortstrasse 7, 76829 Landau, Germany"
Journal Title:		Environ Sci Technol
Year:		2016
Volume:		20160330
Issue:		8
Page Number:		4278 - 4288
DOI:		10.1021/acs.est.5b05671
ISSN/ISBN:		1520-5851 (Electronic) 0013-936X (Linking)
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 gamma-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"
Keywords:		"Air Pollutants/*analysis Atmosphere Chlorobenzenes/analysis Environmental Monitoring Hexachlorocyclohexane/analysis Hungary Hydrocarbons, Chlorinated/analysis Pesticides/*analysis Polychlorinated Biphenyls/*analysis Polycyclic Aromatic Hydrocarbons/*analy;"
Notes:		"MedlineDegrendele, Celine Audy, Ondrej Hofman, Jakub Kucerik, Jiri Kukucka, Petr Mulder, Marie D Pribylova, Petra Prokes, Roman Sanka, Milan Schaumann, Gabriele E Lammel, Gerhard eng Research Support, Non-U.S. Gov't 2016/03/24 Environ Sci Technol. 2016 Apr 19; 50(8):4278-88. doi: 10.1021/acs.est.5b05671. Epub 2016 Mar 30"