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Measuring odours in the environment vs. dispersion modelling: A review

Abstract : Source characterization alone is not sufficient to account for the effective impact of odours on citizens, which would require to quantify odours directly at receptors. However, despite a certain simplicity of odour measurement at the emission source, odour measurement in the field is a quite more complicated task. This is one of the main reasons for the spreading of odour impact assessment approaches based on odour dispersion modelling. Currently, just a very limited number of reports discussing the use of tracer gas dispersion experiments both in the field and in wind tunnels for model validation purposes can be found in literature. However, when dealing with odour emissions, it is not always possible to identify a limited number of tracer compounds, nor to relate analytical concentrations to odour properties, thus giving that considering single odorous compounds might be insufficient to account for effective odour perception. For these reasons, the possibility of measuring of odours in the field, both as a way for directly assessing odour annoyance or for verifying that modelled odour concentrations correspond to the effective odour perception by humans, is still an important objective. The present work has the aim to review the techniques that can be adopted for measuring odours in the field, particularly discussing how such techniques can be used in alternative or in combination with odour dispersion models for odour impact assessment purposes, and how the results of field odour measurements and model outputs can be related and compared to each other.
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Submitted on : Friday, August 13, 2021 - 4:58:12 PM
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Laura Capelli, Selena Sironi, Renato del Rosso, Jean-Michel Guillot. Measuring odours in the environment vs. dispersion modelling: A review. Atmospheric Environment, Elsevier, 2013, 79, pp.731 - 743. ⟨10.1016/j.atmosenv.2013.07.029⟩. ⟨hal-03320048⟩

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