Instrumental measurement of odour nuisance in city agglomeration using electronic nose

Abstract

Abstract. The paper describes an operation principle of odour nuisance monitoring network in a city agglomeration. Moreover, it presents the results of investigation on ambient air quality with respect to odour obtained during six-month period. The investigation was carried out using a network comprised of six prototypes of electronic nose and Nasal Ranger field olfactometers employed as a reference method. The monitoring network consisted of two measurement stations localized in a vicinity of crude oil processing plant and four stations localized near the main emitters of volatile odorous compounds such as sewage treatment plant, municipal landfill, phosphatic fertilizer production plant. The electronic nose prototype was equipped with a set of six semiconductor sensors by FIGARO Co. and one PID-type sensor. The field olfactometers were utilized for determination of mean concentration of odorants and for calibration of the electronic nose prototypes in order to provide their proper operation. Mean monthly values of odour concentration depended on the site of measurement and on meteorological parameters. They were within 0 -6.0 ou/m 3 range. Performed investigations revealed the possibility of electronic nose instrument application as a tool for monitoring of odour nuisance.

Odour Emissions of Municipal Waste Biogas Plants—Impact of Technological Factors, Air Temperature and Humidity

“…At two biogas plants (A and F), a similar impact is observed of mean air humidity on c od and i od compared to the effect presented in the literature [35,36]-a higher c od and i od at lower air humidity. However, this relationship is observed in the case of differences in air humidity at a minimum level of about 20%.…”

“…The device used in the study was the olfactometer Nasal Ranger ® (St. Croix Sensory, Inc., Stillwater MN, USA]). Odour concentrations in every measurement point were calculated based on two readings of the D/T parameter (dilution-to-threshold ratio), using the following formulas [2,31,35,39,40]:…”

“…Szulczyński et al [35] carried out research in Poland around three various sources of odour nuisance (one of the analysed sources was related to waste management) in the six-month period from January to June. They conclude that the biggest odour concentrations around each of the analysed sources were observed in the summer months.…”

Using the MultiRAEPro Gas Detector to Monitor Odour Emissions from Biogas Plants Processing Municipal Waste

“…The research also covered odour measurements, including determination of odour intensity by means of sensory assessment on a six-level scale (0-5), where "0" means "no odour", and "5" means "very strong odour", and measurement of the multitude of dilution of contaminated air with treated air (D/T -dilution to threshold) by means of a dynamic olfactometer Nasal Ranger (St. Croix Sensory, Inc.; Stillwater [Minnesota, USA]). Based on the known parameter D/T, odour concentrations were calculated at each of the study receptors [4][5][6].…”

Electronic Noses and Their Applications for Sensory and Analytical Measurements in the Waste Management Plants—A Review

“…Authors concluded that comparing the price of both e-noses the home-made one exhibits a satisfactory level of correct results as compared to much more expensive Heracles Neo. As suggested by the same authors [193] the performance of e-nose based on gas sensors can be improved by implementation of more and more sensitive sensing arrays. Presented above applications are summarized in Table 8.…”