Hong Kong /

Olfactory Sampling & Testing

ALS provide service to collect odour samples from different sites, from water surfaces and petrol stations. Also providing odour patrol and survey services according to the EPD requirement for 4-point scale odour Intensity.

Sensorial olfactometry measurement, conducted in according to EN 13725: Determination of Odour Concentration by Dynamic Olfactometry, is performed to quantify and express odour of samples in odour intensity, odour concentrations and emission rates in OU_E/m³.

Odour Patrol exercise is performed as a screening survey to identify the odour sources, odour strength, and odour characters of the problematic sites.