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Sci Total Environ

Title:		Surface emission determination of volatile organic compounds (VOC) from a closed industrial waste landfill using a self-designed static flux chamber
Author(s):		Gallego E; Perales JF; Roca FJ; Guardino X;
Address:		"Laboratori del Centre de Medi Ambient, Universitat Politecnica de Catalunya (LCMA-UPC), Avda. Diagonal, 647, E 08028 Barcelona, Spain. Electronic address: eva.gallego@upc.edu. Laboratori del Centre de Medi Ambient, Universitat Politecnica de Catalunya (LCMA-UPC), Avda. Diagonal, 647, E 08028 Barcelona, Spain. Electronic address: Lcma.info@upc.edu. Centro Nacional de Condiciones de Trabajo, INSHT, C/Dulcet, 2-10, E 08034 Barcelona, Spain. Electronic address: cnctinsht@insht.meyss.es"
Journal Title:		Sci Total Environ
Year:		2014
Volume:		20131026
Issue:
Page Number:		587 - 599
DOI:		10.1016/j.scitotenv.2013.09.105
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"Closed landfills can be a source of VOC and odorous nuisances to their atmospheric surroundings. A self-designed cylindrical air flux chamber was used to measure VOC surface emissions in a closed industrial landfill located in Cerdanyola del Valles, Catalonia, Spain. The two main objectives of the study were the evaluation of the performance of the chamber setup in typical measurement conditions and the determination of the emission rates of 60 different VOC from that industrial landfill, generating a valuable database that can be useful in future studies related to industrial landfill management. Triplicate samples were taken in five selected sampling points. VOC were sampled dynamically using multi-sorbent bed tubes (Carbotrap, Carbopack X, Carboxen 569) connected to SKC AirCheck 2000 pumps. The analysis was performed by automatic thermal desorption coupled with a capillary gas chromatograph/mass spectrometry detector. The emission rates of sixty VOC were calculated for each sampling point in an effort to characterize surface emissions. To calculate average, minimum and maximum emission values for each VOC, the results were analyzed by three different methods: Global, Kriging and Tributary area. Global and Tributary area methodologies presented similar values, with total VOC emissions of 237 +/- 48 and 222 +/- 46 g day(-1), respectively; however, Kriging values were lower, 77 +/- 17 gd ay(-1). The main contributors to the total emission rate were aldehydes (nonanal and decanal), acetic acid, ketones (acetone), aromatic hydrocarbons and alcohols. Most aromatic hydrocarbon (except benzene, naphthalene and methylnaphthalenes) and aldehyde emission rates exhibited strong correlations with the rest of VOC of their family, indicating a possible common source of these compounds. B:T ratio obtained from the emission rates of the studied landfill suggested that the factors that regulate aromatic hydrocarbon distributions in the landfill emissions are different from the ones from urban areas. Environmental conditions (atmospheric pressure, temperature and relative humidity) did not alter the pollutant emission fluxes"
Keywords:		Air Pollutants/*analysis Environmental Monitoring Industrial Waste/*analysis *Refuse Disposal Volatile Organic Compounds/*analysis Emission rate Flux chamber Gas chromatography/mass spectrometry Industrial waste landfill Thermal desorption Volatile organi;
Notes:		"MedlineGallego, E Perales, J F Roca, F J Guardino, X eng Research Support, Non-U.S. Gov't Netherlands 2013/11/02 Sci Total Environ. 2014 Feb 1; 470-471:587-99. doi: 10.1016/j.scitotenv.2013.09.105. Epub 2013 Oct 26"