Development of an Electronic Nose for Environmental Odour Monitoring

Exhaustive odour impact assessment should involve the evaluation of the impact of odours directly on citizens. For this purpose it might be useful to have an instrument capable of continuously monitoring ambient air quality, detecting the presence of odours and also recognizing their provenance. This paper discusses the laboratory and field tests conducted in order to evaluate the performance of a new electronic nose, specifically developed for monitoring environmental odours. The laboratory tests proved the instrument was able to discriminate between the different pure substances being tested, and to estimate the odour concentrations giving correlation indexes (R2) of 0.99 and errors below 15%. Finally, the experimental monitoring tests conducted in the field, allowed us to verify the effectiveness of this electronic nose for the continuous detection of odours in ambient air, proving its stability to variable atmospheric conditions and its capability to detect odour peaks.

[1]  Giorgio Sberveglieri,et al.  Detection of toxigenic strains of Fusarium verticillioides in corn by electronic olfactory system , 2005 .

[2]  Richard M. Stuetz,et al.  Identifying major contributing sources to odour annoyance using a non-specific gas sensor array , 2009 .

[3]  Selena Sironi,et al.  Development of a system for the continuous monitoring of odours from a composting plant: Focus on training, data processing and results validation methods , 2007 .

[4]  Paul Heeres,et al.  A Review of 20 Years of Standardization of Odor Concentration Measurement by Dynamic Olfactometry in Europe. , 1999, Journal of the Air & Waste Management Association.

[5]  C. Guy,et al.  Odour quantification by a sensor array: An application to landfill gas odours from two different municipal waste treatment works , 2007 .

[6]  Xavier Roca,et al.  Development and validation of a method for air-quality and nuisance odors monitoring of volatile organic compounds using multi-sorbent adsorption and gas chromatography/mass spectrometry thermal desorption system. , 2007, Journal of chromatography. A.

[7]  T. Baker,et al.  Real-time odor discrimination using a bioelectronic sensor array based on the insect electroantennogram , 2008, Bioinspiration & biomimetics.

[8]  Paolo Littarru.  Environmental odours assessment from waste treatment plants: dynamic olfactometry in combination with sensorial analysers "electronic noses". , 2007, Waste management.

[9]  Krishna C. Persaud,et al.  Use of an Electronic Nose to Measure Odour Concentration Following Application of Cattle Slurry to Grassland , 1997 .

[10]  L. Zeller,et al.  Characterisation of humidity dependence of a metal oxide semiconductor sensor array using partial least squares , 2008 .

[11]  G. Sberveglieri,et al.  The novel EOS/sup 835/ electronic nose sniffs out the Italian espresso coffee quality , 2003, Proceedings of IEEE Sensors 2003 (IEEE Cat. No.03CH37498).

[12]  Selena Sironi,et al.  Continuous monitoring of odours from a composting plant using electronic noses. , 2007, Waste management.

[13]  Matteo Della Torre,et al.  Development Of An Electronic Nose For Environmental Monitoring: Detection Of Specific Environmentally Important Gases At Their Odor Detection Threshold Concentration , 2011 .

[14]  Ki-Hyun Kim.  The Averaging Effect of Odorant Mixing as Determined by Air Dilution Sensory Tests: A Case Study on Reduced Sulfur Compounds , 2011, Sensors.

[15]  William S Cain,et al.  Dose-addition of individual odorants in the odor detection of binary mixtures , 2003, Behavioural Brain Research.

[16]  Ki-Hyun Kim,et al.  Experimental Demonstration of Masking Phenomena between Competing Odorants via an Air Dilution Sensory Test , 2010, Sensors.

[17]  Richard M. Stuetz,et al.  Assessment of odours from sewage treatment works by an electronic nose, H2S analysis and olfactometry , 1999 .

[18]  B. Slotnick,et al.  Odor masking in the rat , 1989, Physiology & Behavior.

[19]  Michelle Gallagher,et al.  Synergistic mixture interactions in detection of perithreshold odors by humans. , 2008, Chemical senses.

[20]  James A. Nicell,et al.  Assessment and regulation of odour impacts , 2009 .

[21]  Selena Sironi,et al.  Electronic noses for the continuous monitoring of odours from a wastewater treatment plant at specific receptors: Focus on training methods , 2008 .

[22]  B. Lavine,et al.  Clustering and Classification of Analytical Data , 2012 .

[23]  Ingemar Lundström,et al.  Data preprocessing enhances the classification of different brands of Espresso coffee with an electronic nose , 2000 .

[24]  S Sironi,et al.  Improvement of olfactometric measurement accuracy and repeatability by optimization of panel selection procedures. , 2010, Water science and technology : a journal of the International Association on Water Pollution Research.

[25]  N. Yamazoe,et al.  Oxide Semiconductor Gas Sensors , 2003 .

[26]  Anne-Claude Romain,et al.  The electronic nose as a warning device of the odour emergence in a compost hall , 2006 .

[27]  M. Laska,et al.  A comparison of the detection thresholds of odour mixtures and their components , 1991 .

[28]  Ki-Hyun Kim,et al.  A comparative analysis of malodor samples between direct (olfactometry) and indirect (instrumental) methods , 2008 .

[29]  Michele Penza,et al.  Odour Detection Methods: Olfactometry and Chemical Sensors , 2011, Sensors.

[30]  Selena Sironi,et al.  Odour impact assessment by means of dynamic olfactometry, dispersion modelling and social participation , 2010 .

[31]  Selena Sironi,et al.  Use Of Electronic Noses For Continuous Monitoring And Recognition Of Environmental Odours In Presence Of Multiple Sources , 2009 .

[32]  Anne-Claude Romain,et al.  Using the classification model of an electronic nose to assign unknown malodours to environmental sources and to monitor them continuously , 2000 .

[33]  A. Romain,et al.  Three years experiment with the same tin oxide sensor arrays for the identification of malodorous sources in the environment , 2002 .

[34]  Selena Sironi,et al.  An Innovative System for the Continuous Monitoring of Environmental Odours: Results of Laboratory and Field Tests , 2010 .

[35]  H. S. Wolff,et al.  iRun: Horizontal and Vertical Shape of a Region-Based Graph Compression , 2022, Sensors.

[36]  Selena Sironi,et al.  Odour Regulation in Italy: the Regional Guidelines on Odour Emissions in Lombardia , 2010 .