Whatever the frequency and severity of odor complaints seen at an industrial site from close neighbors, Odotech can offer objective, independent expertise that will allow permanent settlement of this type of conflict. This is odor engineering, in three stages:

1. A. Diagnosis and impact study;
2. B. Definition of required abatement criteria;
3. C. Optimized solutions proposed, and list of eligible service delivery providers.

Based on the completion of an olfactory diagnosis and the atmospheric dispersion modeling in accordance with local applicable regulations, the engineers and experts of the various Odotech Divisions have developed an exclusive approach to the resolution matrix. This matrix incorporates all waste parameters, whether from stacks or surface sources.

This matrix allows us to define, optimize and establish all characteristics of the implicated odor sources:

• Correction to evacuation design;
• Insufficient vertical drop settings;
• Optimization of waste outflow heights;
• Reduction of equivalent diameters;
• Definition of required abatement measures efficacy (attenuation measures for elevated odor concentrations);
• Incorporation of temporal variability in emissions.

Once the technical specifications have been developed, Odotech will provide a list of recognized equipment suppliers who should implement the required processes/changes and guarantee the defined abatement levels.