Odor impact control and management

Odor emissions that come from plants can profoundly compromise the use of the territory.

Therefore it is necessary to limit odor impact by attaching concentration limits and odor impact limits to fugitive emissions. With the odor monitoring service, we can detect its presence, and we can find tailored solutions to reduce its impact

Our program

The GFE division offers an odor monitoring service that follows the current regulation, developed through these stages:

We realize olfactory impact studies of industrial, agricultural, commercial and residential plants through olfactometric analysis, following UNI EN 13725/2004 on every type of emitter, such as industrial components, chimneys, biological filters, waste materials, disposal tanks.

We carry out odor impact and emissions evaluations in the neighboring emissive plants areas, through field measures, random analysis and studies based on a mathematical model of dispersion.

Ten samples are usually taken from the most crucial points, most of them inside the inspected plant.

This analysis is conducted presenting a sample to a group of selected people. The odor concentration can be varied using a particular instrument, the olfactometer, that changes it through dilutions in a neutral gas, so to determine the detection limit dilution factor up to 50%.

The dynamic olfactometry method is included in UNI EN 13725.2004, and it’s recognized by the European Commission (Integrated Pollution Prevention and Control –IPPC. Reference document on the general principles of monitoring. – Annex 2.1).

We also characterize emissions through chemical and quantification identification of Volatile Organic Compounds (VOC).

The chemical analysis and odor concentration samples results are presented through a detailed report that includes:

  • Norms and procedures description
  • Sample areas geolocation through maps and coordinates
  • Weather and thermic data registered during the sampling
  • Olfactometric and chemical analysis results
  • Computation results realized by mathematical models of dispersion.

Instruments and technology

We realize sampling on different types of sources:

  • Punctual sources (conveyed emissions)
  • Areal sources (without forced flux)
  • Diffuse sources (air)

Weather and geolocation data are also recorded during the sampling.

Furthermore, through the logistic organization of the shipping, samples can be examined within the law terms (30 hours) for the odor emissions check.

The odor concentration will be determined by our reference laboratory following the UNI EN 13725.2004 norm, using an olfactometer T08 by Olfasense GmbH calibrated by Dakks Deutsche akkreditierungsstelle D-K-17433-01-00CON.

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