Impact evaluation of landfills on air quality: odours and toxic compounds

Emissions from municipal solid waste landfills (MSWL) have the potential to cause olfactive annoyance and health impacts among the surrounding populations. The objective of this study was to examine the impacts on the air quality of MSWL in Quebec in terms of odours and potentially toxics compounds related to biogas emissions.

The project was performed on six MSWL through an assessment of odours and potentially toxic emissions and a dispersion modeling at each landfill site to estimate the human exposure to potentially toxic compounds and odours. The emissions of selected pollutants, such as volatil organic compounds (VOC), terpens and sulfur compounds, were estimated by a methodology using the landfill gas emission LandGEM 2.01 software and by a methodology based on field measurements. The exposure to pollutants was estimated by the emissions assessment using the field measurements methodology combined with two atmospheric dispersion models: the Gaussian model of ISCST3 software and the Gifford-Gaussian model of TROPOS software which is specifically designed for odour dispersion. The meteorological conditions under which the dispersion models were applied referred to the representative scenario in southern Quebec. The assessed air pollutant concentrations for potentially toxic and odorous compounds were significantly below the Quebec exposure health criteria.



Copyright: © IWWG International Waste Working Group
Source: General Session B (Oktober 2007)
Pages: 6
Price: € 6,00
Autor: Thierry Pagé
Adeline Narjoux
R.F. Caron
Bruno Fécil
Bruno Fécil

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