Olfactory characterisation of NMVOC emissions from WWTP inlet works

The emission of odour from wastewater treatment plants (WWTPs) can cause annoyance to a local population. Odour measurement is usually assessed either as odour concentrations (dilution olfactometry) or by the chemical assessment of the odorous compounds. These techniques either provide information on the perceived effect of the emission (olfactometry) or chemically speciate the odours (analytical), however provide limited information on the relationship between odour impact and the chemical composition.