Comparative between PLUME VDI 3940-2 method and CALPUFF atmospheric dispersion model application

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MZacarias   Chile is a country that has different industrial activities generating annoying odors for the communities that live in the surroundings. It seeks to determine the area of impact caused by odors, for which measurements are made with suitable panelists (according to the established in the chilean normative NCh3190: 2010).

   To determine the area of impact, plume measurements are made in accordance to VDI 3940 part 2. On the other hand, the mathematical model of atmospheric dispersion CALPUFF fed with emissions measured by dynamic olfactometry is applied.

A.Ulloa and M.Zacarías

Condell 1415-1104, Providencia Santiago, Chile.
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How to set an odour management system

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imagen markandersen   Issues with ambient odours could be annoying and exhausting for the people involved in this context. For the plant responsible of the odour emission, for the people that is exposed to environmental odours and for the authorities responsible of mantaining an adequate vital and equilibrated ambient air at work. 

   Odour perception is personal, subjective and volatile. Among the many important factors involved in the odour perception, memory plays a key role. Many times, citizens will complaint that their annoyance is not being taken seriously and there is a lack of understanding, and sometimes knowledge, of what happened in the past. Therefore, a successful process of odour management requires both a wide set of relevant information about the odour and an effective comunication strategy among the parties involved.  

 

Marc Andresen

Olfasense GmbH - Fraunhoferstraße 13 - 24118 Kiel, Germany

7 days left. Is your country endorsing the EN 16841?

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16841 field inspection2   One week left for the EN 16841 to be implemented at national level by publication of an identical national standard or by endorsement. Just seven days to start working with this new European Standard that describes two methods for direct assessment of odours in ambient air: The grid method and the plume method.

    The dynamic olfactometry method described in EN 13725 is generally only suitable for measurement of odour emissions at the source, as the practical lower detection limit is typically ≥10 ouE/m3 (according to the Final draft of the EN 16841). Dynamic Olfactometry should not be applied directly to determine odour exposure in the field, although some authors claim that this is possible.

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