Odor Testing Biosolids for Decision Making

McGinley, Charles M.; McGinley, Michael A.

doi:10.2175/193864702785302456

Cited by 13 publications

(19 citation statements)

References 7 publications

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“…This is known as Stevens' law or the power law [8]. Odors are ranges (n) from about 0.2-0.8, depending on the odorant.…”

Section: Odor Intensitymentioning

confidence: 99%

“…The only time this will not occur is when the odor criterion is equal to the detection threshold (i.e., 1 odor unit) which effectively becomes a ''no impact'' criterion. The odor intensity result is expressed in ppm (PPM) of butanol (n-butanol) [8]. A larger value of butanol means a stronger odor, however, not in a simple numerical proportion.…”

Section: Odor Intensitymentioning

confidence: 99%

“…The evaluator's experiences and memories force their personal feelings and beliefs into the decision-making process. Through training, evaluators assign a hedonic tone and then set aside their personal feelings and make objective decisions regarding detection and recognition thresholds, intensity referencing using a butanol scale, and character identification using a category reference [8].…”

Section: Hedonic Tonementioning

confidence: 99%

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Odor

Patel¹

2013

Biological and Medical Physics, Biomedical Engineering

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“…This is known as Stevens' law or the power law [8]. Odors are ranges (n) from about 0.2-0.8, depending on the odorant.…”

Section: Odor Intensitymentioning

confidence: 99%

Section: Odor Intensitymentioning

confidence: 99%

Section: Hedonic Tonementioning

confidence: 99%

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Odor

Patel¹

2013

Biological and Medical Physics, Biomedical Engineering

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“…The odor wheel is amongst the most common forms of odor character representation. It was described by McGinley and McGinley (2002) and contains eight odor categories (or odor families) that are easily recognized: floral, vegetal, fruity, medicinal, chemical, offensive, earthy, fishy. The odor wheel is widely used in odor assessment studies.…”

Section: Odor Charactermentioning

confidence: 99%

Odor assessment tools and odor emissions in industrial processes

et al. 2010

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Environmental odors are an inherent part of any given process and can frequently be a cause of public environmental discomfort. Brazilian regulations are now characterizing odors as a form of air pollution and state that odor discomfort on surrounding populations must be avoided by industries. No olfactometry-related technology is standardized or even recognized. This makes it vital to create a federal reference, at least methodological, on the subject. Thus, the present work had the objective to apply, adjust, and evaluate the results of different olfactometric techniques in three types of industries which are known as odorous. The points of most significant odor emission to wastewater treatment plants were located at the system inputs. The techniques that were used are based on international standards and regulations. In all case studies, the applied odor assessment methods (odor intensity, quality, hedonic character and concentration) were found to be satisfactory for representing the odor situation. The method presented in this paper for evaluating the hedonic tone proved to be very convenient. These methodologies allowed for the results to be presented in a numerical form, providing with objective results from subjective analyses. RESUMO. Ferramentas para avaliação de emissões odorantes em processos industriais.Os odores ambientais sempre fazem parte de uma situação ou processo, provocando as mais diversas reações, e por vezes caracterizam situações de desconforto ambiental em uma toda população. A legislação brasileira, em âmbito nacional (alguns Estados), apresenta os odores como uma forma de poluição ambiental, onde o desconforto à população vizinha de potenciais emissores deve ser evitado. Atualmente, no Brasil, nenhuma metodologia relacionada à Olfatometria (medida da resposta de um júri a um estímulo olfativo) é padronizada ou mesmo reconhecida. Nesse sentido, o presente trabalho tem como objetivos aplicar, adequar e avaliar resultados de diferentes metodologias olfatométricas (baseadas em normas internacionais vigentes) em fontes odorantes distintas, quais sejam: refinaria de petróleo, estação de tratamento de efluentes domésticos e indústria papeleira. São casos práticos, aplicados a três indústrias fortemente marcadas pela natureza odorante de seu processo, que mostraram a importância da utilização de uma ferramenta desta natureza na melhoria da qualidade do ar nas comunidades vizinhas a estas unidades. Nos três casos avaliados, as metodologias empregadas na caracterização do odor (intensidade, qualidade, hedonicidade e concentração do cheiro) representaram de modo bastante satisfatório a real situação dos odores para cada estudo de caso, nos períodos em que foram realizadas as amostragens.Palavras-chave: qualidade do ar, poluição atmosférica, odor, olfatometria. 288Carmo Junior et al.

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“…The OJs received demonstrations on handling samples and sniffing techniques and were briefed on using the odor intensity scale (Table 1A), hedonic tone scale (Table 1B) and standard odor descriptors (McGinley and McGinley, 2002). OJs received a sample reference odorant (n‐butanol) that had been determined by study investigators to have an intensity level of 3 for oral malodor.…”

Section: Introduction To Sensory Techniquesmentioning

confidence: 99%