Is it possible to set a universal odour limit?

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P04I2    Analysis of international legislation related to odour impact management shows a wide variety of approaches and limits to tackle odour emissions. One of the most common approaches is setting a limit in odour units at the receptor.

   Dynamic olfactometry measurement at the source coupled with dispersion modelling is often used although there are other approaches very much valid, such as field inspections. The Odour Impact Criteria (OIC) set are different, depending, for example, on the hedonic tone of the odours.

C. N. Díaz

Olores.org, Spain

 

   Competing interests: The author has declared that no competing interests exist.

   Academic editor: Cyntia Izquierdo

   Content quality: This paper has NOT been peer reviewed.

   Citation: C. Díaz, 2019, Is it possible to set a universal odour limit?, OLORES19 Conference, Santiago, Chile, www.olores.org.

   Copyright: 2020 Olores.org. Open Content Creative Commons licence. It is allowed to download, reuse, reprint, modify, distribute, and/or copy articles in olores.org website, as long as the original authors and source are cited. No permission is required from the authors or the publishers.

   ISBN: pending

   Keyword: Legislation, regulation, frequency, concentration, offensivity, sensitivity, annoyance


Abstract

   Analysis of international legislation related to odour impact management shows a wide variety of approaches and limits to tackle odour emissions. One of the most common approaches is setting a limit in odour units at the receptor. Dynamic olfactometry measurement at the source coupled with dispersion modelling is often used although there are other approaches very much valid, such as field inspections. The Odour Impact Criteria (OIC) set are different, depending, for example, on the hedonic tone of the odours. A stricter limit is set to a waste water treatment plant than to the much pleasant odours emitted by a bakery. To this effect some legislations around the world have tables with different odour limits depending on the hedonic tone of the odour emitted by different activities. Resulting in several limits that might not reflect the real odour impact in some cases. In some provinces of the Netherlands it is frequently used a hedonic tone weighted limit. This way an odour limit is tuned depending on the hedonic tone. However, there are other factors important to take into account when dealing with the analysis of the odour impact, being the most common ones the frequency, intensity (vs concentration), duration, offensiveness and sensitivity of the receptors. This concept paper will deal with the development of a simple odour limit for any kind of activity based on the weighting of these five factors. This way legislations on odour impact can be more simply drafted.

 

 

 

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