Related Experiment Video
Updated: Jul 19, 2026

09:53
Real-time In Vitro Monitoring of Odorant Receptor Activation by an Odorant in the Vapor Phase
Published on: April 23, 2019
Measurement of odour with focus on sampling techniques.
1Technische Universität Darmstadt (Darmstadt University of Technology), Petersenstrasse 13, 64287 Darmstadt, Germany. a.bockreis@iwar.tu-darmstadt.de
Waste Management (New York, N.Y.)
|September 6, 2005
Summary
Controlling industrial odor emissions requires accurate measurement. This study examines odor measurement techniques and discusses various sampling methods crucial for reliable results.
Area of Science:
- Environmental Science
- Analytical Chemistry
Background:
- Odour emissions from waste treatment and manufacturing processes negatively impact surrounding communities.
- Complaints necessitate the reduction of these emissions through investigation and evaluation.
Purpose of the Study:
- To present and discuss odour measurement techniques.
- To analyze different sampling methods for odour emissions based on source type.
Main Methods:
- Review of the European standard DIN EN 13725 for odour concentration measurement.
- Discussion of various odour sampling strategies tailored to different emission sources.
Main Results:
- While DIN EN 13725 standardizes odour measurement, sampling methods are not standardized.
- Sampling significantly influences the accuracy and reproducibility of odour measurements.
Conclusions:
- Standardized sampling protocols are needed to complement existing odour measurement standards.
- Improved sampling methods are essential for reliable odour emission assessment and control.
Related Concept Videos
Olfaction
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...
Sampling Methods: Sample Types
Sampling materials are classified into three main types: solid, liquid, and gas.
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...

