These assessments cover both new sources that may affect existing nearby properties and new properties proposed close to existing sources.
Defra guidance is helpful for carrying out such assessments. It identifies the risks of significant odour impacts based on the nature of the cooking, the size of the food outlet, the location, height and design of flue, and the proximity of the exposure.
It is surprising how many flues are inappropriately located. One of the worst seen by Air Quality Consultants during a recent job is shown below!
Mitigation can range from changing the location of the emissions, for example ensuring they are discharged above the roof line to allow better dispersion, to requiring the fitting of carbon filters to remove odours from the flue.
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