Approximately 50% of the wastewater from the "big Santiago" (Santiago Metropolitan Region, Chile) converges into the Chamber of Mixing and Distribution of Wastewater - CAM04 to be later conducted towards the Mapocho Trebal Sewage Treatment Plant.
Due to the considerable amount of the wastewater flow that converges into this chamber, a diagnosis of the odours generated from the CAM04 was carried out, which was based on a field sensory monitoring in the nearby inhabited areas, as well as a dynamic olfactometry campaign and odour dispersion modeling in order to determine the influenced area associated at this source.
F. Chávez, J. Garcés
Aguas Andinas S.A., área de Medio Ambiente y Biodiversidad, Santiago, Chile.
A new development on the first worldwide guideline on the assessment of odour exposure by using dispersion modelling will take its first steps. At this stage, there are many initiatives related to dispersion modelling worldwide but there is no specific guideline for odour modelling to our knowledge. This is an initiative promoted by several experts in the area of modelling that will be led by Mr. Günther Schauberger and Ms. Jennifer Barclay. First meeting will take place the 27th of August. 
In recent years, the community has taken an active role regarding situations or factors that affect its air quality and that of its daily life, especially in those areas close to industrial sites.