Source Of Annoyance Research Articles

At Home in Montreal’s Quartier des Spectacles Festival Neighborhood

Urban festivals have traditionally been considered incompatible with residential areas because of their contrasting sonic characters, where the sounds of festivals are treated as a nuisance for residents. However, the neighborhood dedicated to housing festivals in downtown Montreal is also the home of diverse groups of residents and workers. Based on a diary and interview study with residents of the Quartier des spectacles festival neighborhood, and building upon research on touristification, festivals as third places, and soundscape, we explored what it meant to be at home in a festival neighborhood, focusing on the sonic experiences of locals. Findings provided a more nuanced portrayal of everyday life in a dense, lively urban environment transformed through touristification. Residents do not consider the sounds of festivals as a primary source of annoyance; on the contrary, these sounds inspire them to engage with their neighborhood, suggesting a more porous living experience between indoor and outdoor spaces. Drawing on the characterization of other imagined residents by our participants, we conclude by introducing the idea of soundscape personas as a practical method in participatory decision-making for the future of the neighborhood.

Social Noise Exposure in a Sample of Slovak University Students.

Purpose: Social noise exposure is currently an emerging problem in adolescents and young adults. Various leisure time activities may be responsible for hearing impairment (temporary or permanent hearing threshold shift or hearing loss). The study aimed to quantify environmental noise from various sources—voluntary (social) noise (personal music players (PMPs), high-intensity noise exposure events), and road traffic noise and to detect hearing disorders in relation to individual listening to PMPs in the sample of young adults living and studying in Bratislava, the capital city of Slovakia. Methods: The study included 1003 university students (306 men and 697 women, average age 23.1 ± 2) living in Bratislava for 4 or more years; 347 lived in the student housing facility exposed to road traffic noise (LAeq = 67.6 dB) and 656 in the control one (LAeq = 53.4 dB). Respondents completed a validated ICBEN 5-grade scale “noise annoyance questionnaire”. In the exposed group a significant source of annoyance was road traffic noise (p < 0.001), noise from entertainment facilities (p < 0.001), industrial noise (p < 0.001), and noise from neighboring flats (p = 0.003). The exposure to PMPs was objectified by the conversion of the subjective evaluation of the volume setting and duration. With the cooperation of the Ear, Nose and Throat (ENT)specialist, we arranged audiometric examinations on the pilot sample of 41 volunteers. Results: From the total sample of respondents, 79.2% reported the use of a PMP in the course of the last week, and the average time was 285 min. There was a significant difference in PMP use between the road traffic noise-exposed (85.6%) and the control group (75.8%) (p = 0.01). Among PMP users 30.7% exceeded the lower action value (LAV) for industry (LAeq,8h = 80 dB). On a pilot sample of volunteers (n = 41), audiometry testing was performed indicating a hearing threshold shift at higher frequencies in 22% of subjects. Conclusions: The results of the study on a sample of young healthy individuals showed the importance of exposure to social noise as well as to road traffic noise and the need for prevention and intervention.

Long-term effects of the use of a sound masking system in open-plan offices: A field study

Abstract Noise in open-plan offices, and more specifically conversational noise, is a major source of annoyance for employees. The principle of sound masking consists in artificially increasing the background noise in the office, which leads to a decrease in speech intelligibility and therefore a reduction in acoustic annoyance. Nevertheless, the arguments in favour of this technology are based on short-term laboratory studies, whose lack of representativeness limits the application of their conclusions in real open-plan offices. This justifies the present study, which aims to evaluate, in situ and over the long term, the effectiveness of a sound masking system that meets the main scientific and normative recommendations (for example, a masking level below 45 dB(A) and a spectrum with a slope of approximately − 5 dB per octave). Such a sound masking system was installed for several months in an office of a major French banking company. The experiment spanned 26 weeks, 14 of which corresponded to nominal operation of the masking system. The protocol was based on subjective measurements using questionnaires on perceived fatigue, mental workload and perception of the soundscape. The study did not reveal any significant improvement in the assessed psychological factors nor in annoyance caused by office noise. On the contrary, it showed an increase in annoyance caused by noise from office equipment. This highlights the fact that a masking level of 45 dB(A) might already be too high. The results therefore suggest that, in real conditions, a masking system, even if it is used according to specifications that seem to be agreed upon, is not a turnkey solution to the problem of noise in open-plan offices. It is recommended that the installation of these systems be preceded by a holistic analysis of the office: acoustic quality of the room, layout of the workstations and the activities that take place there.

Analysis of Wheel Squeal and Flanging on Curved Railway Tracks

When a railway vehicle moves over a sharply curved section of track, intense high-frequency noises sometimes occur. These are potentially a source of annoyance to those living adjacent to railway tracks. To efficiently identify measures appropriate to reduce curve squeal, it is important to determine the dominant noise type. However, it is difficult to analyze the various noises made over curved sections of railway using general noise measurements. In this study, we analyzed squealing and flange noises using various experimental approaches. We first investigated the noise characteristics of the railway vehicle via structural analysis of the wheel. It was confirmed that a wheel has various natural frequencies and eigenmodes in the high frequency range, i.e. over 1000 Hz. A roller rig test was performed to measure and investigate the characteristics of the noise generated when an actual wheel and the curved section of the railway track come in contact with each other. In this experiment the squeal and the flange noises, in particular, were reproduced by adjustments made to the lateral angle and vertical force, respectively. Results confirmed that the squealing noise occurs in the high frequency region and the flange noise occurs in various modes. A study was also conducted to measure and analyze the noise in the actual curved section of an urban railway. By comparing the frequency analysis and the natural frequency analysis of the noise that was actually measured, the mode by which the wheel caused the squealing noise was confirmed. Furthermore, the influence of the noise generated inside and outside the curved section of the track was investigated based on velocity, and the influence of the former on the noise generated was also examined. This study provides information on the squeal and flange noises generated when a railway vehicle moves over a curved section of a railway using various experimental approaches.

Annoyance in Response to Vibrations from Railways.

Rail transport is a key stepping stone in the EU’s transport policy and is pinpointed for investment and growth over the coming decades. This expanding infrastructure implies increased exposure to environmental stressors, such as noise and ground-borne vibrations. Little is known about the health impacts of exposure to these vibrations. The aim of this paper is to examine the association between annoyance from rail vibrations and the distance of residential dwelling from the railway. It reports the first results of a large epidemiological study, EpiVib, which was designed to investigate the long-term health effects of exposure to rail vibrations. The first part of this study examines a self-reported questionnaire. In total, 6894 individuals aged between 18 and 80 living within 1 km of a railway in west Sweden participated. Results presented here examine the association between distance to the railway and annoyance from vibrations and are stratified by train type. A positive association between closer distance and increased annoyance is seen. After adjustment for important modifiers, results showed that vibrations from freight trains and maintenance operations are reported to be moderately and highly annoying at distances of up to 400 m from the railway and diesel up to 300 m. Vibration from passenger and fast trains are significantly annoying up to 200 m from the track. Vibration from freight trains and maintenance operations were considered highly annoying up to 300 m from the track, diesel up to 400 m. Vibration from passenger and fast trains are not reported to be highly annoying after adjustment. Heavier, slower moving locomotives, in the form of diesel and freight trains, appear to be the source of annoyance at distances further from the railway compared to passenger and fast trains. This has implications in terms of property, transport, and infrastructure planning.

Interlanguage Errors Awareness in English as a Foreign Language and Arabic as a First Language in a Saudi Context

Developmental errors in L2 Learning are a systemic necessity which is unfortunately interpreted as source of annoyance that could hinder the learning process by the learners. The purpose of the present study is to investigate the degree of awareness of L2 learners of English as a Foreign Language (EFL) and Arabic as Second Language (ASL) of errors they make at comparable proficiencies in the two languages for two groups of students. It is argued that error awareness is commensurate of explicit correction by teachers in the foreign language context, which lacks daily use of the language in a natural context, whereas it is developed through daily practice of the language in both comprehension and production in a second language context. The second context provides acquisition like situations for the learners. The author also hypothesizes that there will be more awareness of errors and an auto-correction in an acquisition fashion in a second language context than in a foreign language one. This research will be quantitative and will use a questionnaire which will investigate the learners’ awareness through their opinions and attitudes through explicit introspection about the types of errors, their pervasiveness, and their place in the mind of the learners.

Annoyance to different noise sources is associated with atrial fibrillation in the Gutenberg Health Study

Annoyance is a common reaction in populations exposed to environmental noise and is associated with cardiovascular diseases. We investigated for the first time the existence of an association between noise annoyance and atrial fibrillation (AF). Cross-sectional data from 14,639 participants of the Gutenberg Health Study were collected between 2007 and 2012. Annoyance from road traffic, aircraft, railways, industrial/construction and neighbourhood noise during daytime and sleep were collected from all participants through questionnaires using a 5-point scale. AF was assessed via self-reported medical history and/or documentation of AF on the study electrocardiogram. 80% of the study participants were annoyed by noise to a certain degree. The major sources of annoyance during daytime and sleep were aircraft, road traffic and neighbourhood noise. We found significant associations between annoyance (per point increase) and AF for aircraft noise annoyance during daytime (odds ratio (OR) 1.04; 95% confidence interval (CI) 1.00-1.08) and during sleep (OR 1.09; 95% CI 1.05-1.13), road traffic noise annoyance during sleep (OR 1.15; 95% CI 1.08-1.22), neighbourhood noise annoyance during daytime (OR 1.14; 95% CI 1.09-1.20) and during sleep (OR 1.14; 95% CI 1.07-1.21), industrial noise annoyance during daytime (OR 1.11; 95% CI 1.04-1.18) and railway noise annoyance during sleep (OR 1.13; 95% CI 1.04-1.22). Different degrees of annoyance were not associated with changes in cardiovascular risk factors. The results suggest for the first time that noise annoyance is associated with AF. Further studies are warranted to gain insight in the mechanisms underlying the noise-annoyance-disease relationship.

Realizing modeling and mapping tools to study the upsurge of noise pollution as a result of open-cast mining and transportation activities.

Introduction:In open-cast mines, noise pollution has become a serious concern due to the extreme use of heavy earth moving machinery (HEMM).Materials and Methods:This study is focused to measure and assess the effects of the existing noise levels of major operational mines in the Keonjhar, Sundergadh, and Mayurbhanj districts of Odisha, India. The transportation noise levels were also considered in this study, which was predicted using the modified Federal Highway Administration (FHWA) model.Result and Discussion:It was observed that noise induced by HEMM such as rock breakers, jackhammers, dumpers, and excavators, blasting noise in the mining terrain, as well as associated transportation noise became a major source of annoyance to the habitants living in proximity to the mines. The noise produced by mechanized mining operations was observed between 74.3 and 115.2 dB(A), and its impact on residential areas was observed between 49.4 and 58.9 dB(A). In addition, the noise contour maps of sound level dispersion were demonstrated with the utilization of advanced noise prediction software tools for better understanding.Conclusion:Finally, the predicted values at residential zone and traffic noise are correlated with observed values, and the coefficient of determination, R2, was calculated to be 0.6891 and 0.5967, respectively.

Control of electromechanical properties of multilayer ceramic capacitors for vibration reduction

AbstractA multilayer ceramic capacitor (MLCC) contains layers of ceramics as the dielectric materials. It has been known that Class 2 MLCCs, made of ferroelectric ceramics such as barium titanate, tend to suffer from electromechanical coupling hence vibration, which leads to the generation of acoustic humming noise, a source of annoyance in many modern electronic devices. In this article, a repoling method to control the electromechanical properties and the resulting vibration of MLCCs is presented. The repoling protocol hinges on the understanding that two independent mechanisms are responsible for the electromechanical coupling in MLCCs: piezoelectricity and electrostriction of the ceramic layers. The vibration due to piezoelectricity is linearly proportional to the input voltage, whereas the vibration due to electrostriction shows a quadratic dependence. Given the DC bias and the AC input voltage under normal operating conditions, the vibration is composed of the fundamental component at the frequency of the AC input and the second harmonic component spawned by the quadratic nonlinearity of electrostriction. It is demonstrated that by engineering the coefficients of piezoelectricity and electrostriction of the ceramic layers through a carefully designed repoling treatment, vibration reduction can be achieved for both the fundamental and second harmonic components. Especially, the fundamental component of vibration can be reduced significantly, as the piezoelectric effect is made to offset the electrostrictive effect.

Public perception of rural environmental quality: Moving towards a multi-pollutant approach

Abstract Most environmental epidemiology studies have examined pollutants individually. Multi-pollutant approaches have been recognized recently, but to the extent of our knowledge, no study to date has specifically investigated exposures to multiple air pollutants in rural environments. In this paper we characterized and quantified residential exposures to air pollutant mixtures in rural populations, provided a better understanding of the relationships between air pollutant mixtures and annoyance responses to environmental stressors, particularly odor, and quantified their predictive abilities. We used validated and highly spatially resolved atmospheric modeling of 14 air pollutants for four rural areas of Denmark, and the annoyance responses considered were annoyance due to odor, noise, dust, smoke and vibrations. We found significant associations between odor annoyance and principal components predominantly described by nitrate (NO3−), ammonium (NH4+), particulate matter (PM10 and PM2.5) and NH3, which are usually related to agricultural emission sources. Among these components, NH3 showed the lowest error when comparing observed population data and predicted probabilities. The combination of these compounds in a predictive model resulted in the most accurate model, being able to correctly predict 66% of odor annoyance responses. Furthermore, noise annoyance was found to be significantly associated with traffic-related air pollutants. In general terms, our results suggest that emissions from the agricultural and livestock production sectors are the main contributors to environmental annoyance, but also identify traffic and biomass burning as potential sources of annoyance.

Assessment and characterization of sound pressure levels in Portuguese neonatal intensive care units

ABSTRACTIn the NICU, systematic exposure to sound-pressure above the recommended level can affect both neonates and staff. This study aimed to evaluate the sound pressure levels in three Portuguese NICUs and the noise perceptions of staff. The measurements were performed with a sound-level meter, considering the location of the main sources of noise and the layout of the units. A questionnaire was applied to assess noise perceptions of professionals. Among the staff, 41.1% classified the environment (regarding noise) as “slightly uncomfortable”; 48.4% considered it as “acceptable.” The majority (55.5%) considered “equipment” the most annoying source of noise. The results showed that noise levels were excessive in all the evaluated areas of the NICUs, exceeding international guidelines, with levels ranging between 48.7 dBA to 71.7 dBA. Overall, there is a need for more research to verify the effectiveness of some actions and strategies to reduce the effect of noise in the NICU.

Odour control strategies for a sustainable nuisances action plan

&lt;p&gt;Different land uses, infrastructures, industrial activities and residential patterns of developed cities expose simultaneously people to several annoying sources.&lt;/p&gt; &lt;p&gt;Over recent years, the European Union has provided several tools to harmonize noise mapping methodologies and relative Noise Action Plans through directives. Unfortunately, the same effort has not been made for the harmonization of approaches of other annoying sources such as odours. As a consequence, each European Member State has defined its own direct or indirect approach to limit odour impacts.&lt;/p&gt; &lt;p&gt;The most common approach to deal with noise impact is the use of priority indices to highlight areas that are sensitive to both noise and, generally, odour impacts. The aim of the present research is to provide a brief review of the most widely used European strategies in noise action plans as well as try to extend the approaches to the definition of a nuisance action plan, capable of controlling both odour and noise.&lt;/p&gt; &lt;p&gt;The analysis underlines that is possible to define the degree of sensitivity of areas according to population, land uses, levels of exposures and/or distance from the annoying sources. Nuisance acceptability levels are then definable according to the sensitivity degree of the locations.&lt;/p&gt;

Implementation of Integrated Nuisances Action Plan

In everyday life people are simultaneously exposed to several annoying sources (sounds, vibrations and odours), which emerge from background of considerable variability of land uses, infrastructures, residential patterns, topography, meteorology condition, and standards quality of life. The European Union has provided in recent years (and is going to update) several tools to harmonize noise mapping methodologies and relative Noise Action Plans through directives and guidelines. Unfortunately the same efforts have not been put in the harmonization of approaches in other annoying sources like odours. As a consequence, each European Member State at national or even at local level defined its own direct or indirect approach to limit odour impacts, usually considerably different one from the others. The most common approach to deal with noise impact at a policy, economic and strategy level is the use of priority indices focused to highlight areas more sensitive and where mitigation actions will be more advisable or urgent. Locations that for their specific land use are more sensitive to noise impacts (e.g. residential areas) are generally also sensitive to odour impacts. According these, the aim of the present research is to provide a brief review of the most used European strategies in noise action plans end try to extend their approaches for the definition of a nuisance action plan, able to control both odour and noise. Paper present a possible implementation of integrated nuisances action plan in the municipality of Palma Campania (Campania Region, Italy). The analysis underlines that is possible define, under the same set of nuisance indicators, the degree of sensitivity of areas according to population, land uses, levels of exposures and/or distance from the annoying sources. Nuisance acceptability levels are then definable according to the sensitivity degree of the locations. Factors related to vibrations and visual perception of the landscape can further contribute to control total sensorial annoyance in the land planning.

Noise Annoyance is Associated With Depression and Anxiety in the General Population- the Contribution of Aircraft Noise

BACKGROUND: While noise annoyance has become recognized as an important environmental stressor, its association to mental health has hardly been studied. We therefore determined the association of noise annoyance to anxiety and depression and explored the contribution of diverse environmental sources to overall noise annoyance. PATIENTS AND METHODS: We investigated cross-sectional data of n = 15.010 participants of the Gutenberg Health Study (GHS), a population-based, prospective, single-center cohort study Mid-Germany (age 35 to 74 years). Noise annoyance was assessed separately for road traffic, aircraft, railways, industrial, neighborhood indoor and outdoor noise (during the day; in your sleep) on 5-point scales (not at all to extremely); depression and anxiety were assessed by the PHQ-9, resp. GAD-2. RESULTS: Depression and anxiety increased with the degree of overall noise annoyance. Compared to no annoyance, prevalence ratios for depression, respectively anxiety increased from moderate (PR depression 1.20; 95%CI 1.00 to 1.45; PR anxiety 1.42; 95% CI 1.15 to 1.74) to extreme annoyance (PR depression 1.97; 95%CI 1.62 to 2.39; PR anxiety 2.14; 95% CI 1.71 to 2.67). Compared to other sources, aircraft noise annoyance was prominent affecting almost 60% of the population. INTERPRETATION: Strong noise annoyance was associated with a two-fold higher prevalence of depression and anxiety the general population. While we could not relate annoyance due to aircraft noise directly to depression and anxiety, we established that it was the major source of annoyance the sample, exceeding the other sources those strongly annoyed. Prospective follow-up data will address the issue of causal relationships between annoyance and mental health. Language: en

Noise Annoyance Is Associated with Depression and Anxiety in the General Population- The Contribution of Aircraft Noise

BackgroundWhile noise annoyance has become recognized as an important environmental stressor, its association to mental health has hardly been studied. We therefore determined the association of noise annoyance to anxiety and depression and explored the contribution of diverse environmental sources to overall noise annoyance.Patients and MethodsWe investigated cross-sectional data of n = 15.010 participants of the Gutenberg Health Study (GHS), a population-based, prospective, single-center cohort study in Mid-Germany (age 35 to 74 years). Noise annoyance was assessed separately for road traffic, aircraft, railways, industrial, neighborhood indoor and outdoor noise (“during the day”; “in your sleep”) on 5-point scales (“not at all” to “extremely”); depression and anxiety were assessed by the PHQ-9, resp. GAD-2.ResultsDepression and anxiety increased with the degree of overall noise annoyance. Compared to no annoyance, prevalence ratios for depression, respectively anxiety increased from moderate (PR depression 1.20; 95%CI 1.00 to 1.45; PR anxiety 1.42; 95% CI 1.15 to 1.74) to extreme annoyance (PR depression 1.97; 95%CI 1.62 to 2.39; PR anxiety 2.14; 95% CI 1.71 to 2.67). Compared to other sources, aircraft noise annoyance was prominent affecting almost 60% of the population.InterpretationStrong noise annoyance was associated with a two-fold higher prevalence of depression and anxiety in the general population. While we could not relate annoyance due to aircraft noise directly to depression and anxiety, we established that it was the major source of annoyance in the sample, exceeding the other sources in those strongly annoyed. Prospective follow-up data will address the issue of causal relationships between annoyance and mental health.

Contaminación acústica en la zona 3 de la ciudad de Querétaro: comparación de los niveles de ruido reales y los apreciados por los habitantes

This article describes the damage caused by noise exposure levels in different scientific studies. The in situ decibel measurements are shown as well as the results of an exploratory study that presents the perception of 168 inhabitants in a determined zone in the city of Queretaro regarding noise pollution, with the objective of finding the degree of perceived affectation to determine if there is concordance between them. This article is part of an investigation aimed at developing a noise reduction product for housing. Our findings indicate that, although nearly 60% of respondents preceived the noise of the area with high levels, and identify vehicles and motorcycles as the most annoying source of noise, people are not aware of the effects it has on the performance of their activities as a consequence of the noise pollution levels in the area.

Automated Collection of Real-Time Alerts of Citizens as a Useful Tool to Continuously Monitor Malodorous Emissions.

The evaluation of odor emissions and dispersion is a very arduous topic to face; the real-time monitoring of odor emissions, the identification of chemical components and, with proper certainty, the source of annoyance represent a challenge for stakeholders such as local authorities. The complaints of people, often not systematic and variously distributed, in general do not allow us to quantify the perceived annoyance. Experimental research has been performed to detect and evaluate olfactory annoyance, based on field testing of an innovative monitoring methodology grounded in automatic recording of citizen alerts. It has been applied in Taranto, in the south of Italy where a relevant industrial area is located, by using Odortel® for automated collection of citizen alerts. To evaluate its reliability, the collection system has been integrated with automated samplers, able to sample odorous air in real time, according to the citizen alerts of annoyance and, moreover, with meteorological data (especially the wind direction) and trends in odor marker compounds, recorded by air quality monitoring stations. The results have allowed us, for the first time, to manage annoyance complaints, test their reliability, and obtain information about the distribution and entity of the odor phenomena, such that we were able to identify, with supporting evidence, the source as an oil refinery plant.

Estimation of Spatial Variations in Urban Noise Levels with a Land Use Regression Model

Background: Outdoor noise is a source of annoyance and health problems in cities worldwide. Objective: We developed a land-use regression using a GAM Model to estimate the spatial variation of noise levels in Montreal. Methods: Noise levels were measured over a two week period during the summer of 2010 at 87 sites and during the winter of 2011 at 62 sites. A land use regression model was produced for both seasons to estimate noise levels as LAeq24h (resolution of 20 m). A leave one out cross-validation (LOOCV) was performed. Results: LAeq24h measured range from 53.4 to 73.7 dBA for the summer and from 54.1 to 77.7 dBA for the winter. The land use regression models explained 64 % of spatial variability for the summer and 40 % for the winter. The main predictors are the Normalized Difference Vegetation Index; the length of vehicular arteries, highways, and bus lines; and the proximity to an international airport. The Root mean square error ??from the LOOCV was 3.3 and 4.5 dBA for the summer and the winter respectively. Conclusion: The model explained a large part of the variability in noise levels and the RMSE remain relatively important on the noise levels scale.

Effect of situational, attitudinal and demographic factors on railway vibration annoyance in residential areas

Railway induced vibration is an important source of annoyance among residents living in the vicinity of railways. Annoyance increases with vibration magnitude. However, these correlations between the degree of annoyance and vibration exposure are weak. This suggests that railway vibration induced annoyance is governed by more than just vibration level and therefore other factors may provide information to understand the wide variation in annoyance reactions. Factors coming into play when considering an exposure-response relationship between level of railway vibration and annoyance are presented. The factors investigated were: attitudinal, situational and demographic factors. This was achieved using data from field studies comprised of face-to-face interviews and internal vibration measurements (N = 755). It was found that annoyance scores were strongly influenced by two attitudinal factors: Concern of property damage and expectations about future levels of vibration. Type of residential area and age of the respondent were found to have an important effect on annoyance whereas visibility of the railway and time spent at home showed a significant but small influence. These results indicate that future railway vibration policies and regulations focusing on community impact need to consider additional factors for an optimal assessment of railway effects on residential environments.

Al Jazeera: Reflections on the Arab Spring

Since its establishment in 1996 Al Jazeera has established a formidable reputation for the reliability and the (largely) uncensored nature of its news, the professionalism of its staff and the quality of the programmes it airs. The channel increasingly became a source of annoyance to many regimes in the Arab world which had relied for many years on heavily censored national media. But most importantly, it began to be seen as a powerful catalyst for change in the Arab world, winning armies of supporters of all ages in a relatively short period of time. The article examines this phenomenon and challenges some of the views that have attempted to explain some of the motives behind the creation and support of this channel by the Qatari regime. It also explores the challenges of expansion, credibility and survival that are currently facing this controversial Arab satellite channel.