جستجوی مقالات مرتبط با کلیدواژه « آزردگی صوتی » در نشریات گروه « پزشکی »

Traffic noise annoyance is one of the consequences of urban life which can have adverse effects on human health including sleep quality. The present study intends to investigate the extent of noise annoyance and its relationship with sleep quality of residents adjacent to high- and low-traffic roads in Yazd city in 1399.

This was a cross-sectional study conducted in 1399 in Yazd. Data were collected using two standard questionnaires of assessing noise annoyance and Pittsburgh sleep quality. Responses were collected from residents around 10 high- and low-traffic roads, and a total of 200 samples were obtained randomly.

The mean score of sleep quality for all participants was 11.5 ± 35.25, and the mean score of noise annoyance was 3.73± 1.9. There was a significant difference between the average quality of sleep and the score of noise annoyance in terms the type of road (P/00.001). In general, there was also a significant and direct correlation between noise annoyance and sleep quality (r = 0.569, P = 0.001). But, the correlation between these two variables was not significant with the separation of the types of roads.

Based on the results of the present study, the quality of sleep of residents around high traffic roads is moderate, which suggests that noise annoyance caused by traffic affects the quality of sleep. In other words, the noise annoyance caused by traffic has reduced the quality of sleep in people living adjacent to high-traffic roads.

Noise annoyance is considered a significant injury in military personnel and has the ability to affect their combat performance. The purpose of this study is to determine the characteristics of sound in the occupational exposure of employees to military vessels.

This cross-sectional study was conducted on N-class and T-class vessels near Mahshahr city in 2022. Sound measurement and octaband analysis were done using sound meter and acoustic calibrator. In N-class and T-class vessels, the analysis of the sound pressure level was analyzed in the stationary state and in the state while moving with engine speed of 1300 and 1700 rpm. The collected data were analyzed in Minitab 21 software.

The findings showed that the sound pressure level in the switched on state is less than the standard limits at frequencies of 250, 500, 1000, 2000, 4000 and 8000 Hz. But in the on state during movement and with the engine speed of 1700 rpm in both N-class and T-class vessels, engine number 2 has the highest sound pressure level with a difference of 18.8 and 14.9 dB compared to the standard limits. Also, at the frequency of 250 Hz, among the distance measurement of different engines, the biggest difference in sound pressure level (-29.6 dB) with the standard limits is related to the right engine of the N-class vessel.

The findings of the present study demonstrated that the sound pressure level in the switched on state does not cause any damage to the hearing of military personnel, because in all the measured frequencies, the sound pressure level was reported to be lower than the standard limits. It is recommended to use personal protective equipment for employees during military operations or to install a high-performance absorber in the cabin of both vessels during occupational exposures to reduce the harmful effects of noise.

The body's response to noise pollution is very similar to the way the body responds to stress, which can lead to poor health over time. In this regard, this study was conducted to determine the general health of the elderly and its relationship with traffic noise pollution in Ardakan.

This descriptive cross-sectional study was conducted in 1399. Participants were 200 elderly people in Ardakan chosen by random sampling. Data were collected through sound measurement with SVANTEK device, General Health Questionnaire 28 (GHQ-28). After completing the questionnaires and measurements, the collected data were entered into SPSS-19 software and descriptive statistics as well as analytical statistics such as Chi-square, regression and analysis of variance were used to analyze them.

The overall average sound level equivalent in decibels at all measuring stations was within the standard range. There was a significant relationship between noise annoyance, the dimensions of "anxiety symptoms  ,sleep disorders" ,and "depressive symptoms" of general health (p <0.001).

People with more noise annoyance experience more anxiety, sleep disorders and depression. Existence of noise pollution levels in the allowable or standard level can lead to the observation of no significant relationship between traffic noise pollution levels and general health. Reducing anxiety, depression and sleep disorders in the elderly is possible with interventions to reduce  noise annoyance in them.

 Although noise characteristics such as intensity and frequency are the main cause of detrimental effects, it is important to pay attention to the personality traits of individuals as the host of adverse health effects. The aim of this study was to investigate the effect of personality traits on sensitivity, annoyance and loudness perception due to exposure to high frequency sound.

 This interventional and experimental study was carried out among 80 undergraduate and postgraduate students in 2017. First, examinee were exposed to a high frequency noise at 65 dBA for one hour in an acoustic room. Then, to determine amount of annoyance, sensitivity, loudness perception and to investigate personality traits, questionnaire of noise annoyance, noise sensitivity, loudness perception and Eysenck personality inventory was used, respectively. Finally, Chi-square, independent t-test and multivariate analysis of variance (MANOVA) were used to data analyze.

 The mean±SD of sensitivity, annoyance and loudness perception were 54.08±7.71, 7.0±1.53, and 2.79±1.13, respectively in this study. The mean scores of sensitivity, annoyance and loudness perception were significantly different in terms of personality traits, so that their average was higher in the neurotic and introverted. Based on MANOVA test results, personality traits had a significant effect on sensitivity, annoyance and loudness perception of individuals. In a way, the neuroticism and introversion had the greatest effect on the sensitivity and annoyance, respectively.

 The results of this study showed that personality traits such as introversion and neuroticism can affect the sensitivity, annoyance and loudness perception of individuals.

The ceramics industry is one of the key industries in the economic development of any country. This industry has a large share of Iranchr('39')s non-oil exports so that in recent years it has consistently placed Iranchr('39')s position in the production and export of this product among other developing countries. However, there are many harmful factors in these industries, which threaten the physical and mental health of workers, the most important of which are environmental hazards, cooling, heating, vibration, noise pollution, and so on. Noise pollution is very important in the ceramics industry, as in other industries. According to research, about 600 million people worldwide and 30 million people in the United States face more than 85 dB noise in their workplace. According to the report, about 2 million workers are reported in Iran, according to a report by the Health Ministrychr('39')s Workplace Health Center. Also, according to the National Institute of Occupational Safety and Health (NIOSH), 14 percent of the total workforce is working in environments with noise levels above 90 dB. Consequently, exposure to noise in the world, including Iran, is a problem in the workplace. In addition, according to studies in the ceramics industry, it can be concluded that exposure to noise is high for the employees of the industry so that the study results Kargar et al. Found that about 45% of the ceramic industrychr('39')s employees are exposed to noise above the permitted level. As a result, personal exposure to noise will be of particular importance to employees in the industry, based on the results of past exposure research. Hair can work with noise in the workplace, except for hearing loss Hypertension, cardiovascular disease, gastrointestinal, behavioral, mental and sleep disorders. On the other hand, acoustic disturbance is a new topic that has been considered by researchers recently as one of the negative effects on onechr('39')s health and comfort. The most common subjective response is measurable, and its effects may include physiological responses, central nervous system responses, and biochemical changes. These failures include various areas such as memory, distraction, forgetfulness, inadvertent errors. Also, due to interference with daily activities can cause serious harm to the person. As a result, the present study investigated acoustic annoyance as the most common measurable subjective response among people exposed to noise and cognitive impairment as an indicator of onechr('39')s ability to perform tasks that he or she is naturally capable of performing in a ceramic industry. At the same time, it is intended to examine the relationship between sound pressure level values ​​with acoustic annoyance scores and cognitive failure.

This descriptive-analytical study was conducted in the ceramics industry in 1998. To determine individual exposure to noise, we first examined the production sections and the annual results of the sound measurements, and then the loudspeakers were identified. In this study, the sample size was calculated using Cohenchr('39')s sampling formula with 80% confidence interval of 95% confidence level of 96 persons. Under 50 years of age, congenital hearing impairment, lack of sleep medications and CNS overdose, depression, and lack of a second job were considered. Thus, at the end of this study, after eliminating some of the study population, 50 workers were exposed and 50 administrative staff were placed in the control group. Also, volunteers were asked about the importance of the research subject. Then, to complete the questionnaires used in the study, a research session was held with the presence of the research population. Then the questionnaires were distributed to the individuals and their observation was completed. given. DOS 1354 TES was used to measure the sound pressure level. At the same time, the subjects completed a demographic questionnaire, noise annoyance and cognitive impairment (CFQ) questionnaire. Measurement was done in two groups of exposure and control. The TES-1356 calibrator was manufactured in Taiwan to obtain the exact results of the equipment used before each measurement. In accordance with ISO 9612 standard, a dosimeter microphone was installed on their collar at a distance of 10-30 cm from the outer ear canal. At the end, exposure dose calculations were performed, as production workers were exposed to the same noise levels during the shift, and a two-hour dosimetry was performed and generalized to the equivalent of the 8-hour balance calculations. There are four components that have the first component of distraction (2 items), memory problems (7 items), inadvertent errors (7 items), lack of recall of names (2 items). The acoustic annoyance questionnaire consists of three parts. These three sections include: The first part is heavily rated for workplace noise, the second and third are respectively for workplace noise disturbance and for determining the situations people experience throughout the day, such as fatigue, lethargy, loss of concentration, and so on checked. The questionnaire is divided into 0 to 10 levels of annoyance, with zero being non-annoying and 10 being excessive annoyance. The data were confirmed. Mann-Whitney test was used to analyze marital status with sound pressure level, acoustic distress and cognitive impairment. In addition, Spearman test was used to correlate the parameters of sound pressure level, acoustic annoyance and cognitive failure. The level of 0.05 was considered as the significant level.

The results of this study showed that 50% of the study population was 27-33 years old, 45% had a 3 to 5 year work experience, 64% were married and only 9% had university education. Qualitative in both exposure and control groups showed that there was no significant difference between work experience, marital status and education but there was a significant difference in age variable (p <0.05). Mean sound pressure levels in the exposure and control groups were 86.44 86 4.49 dB and 59.29 ± 3.02 dB, respectively. Also the score of acoustic annoyance and cognitive impairment in the exposure group were 70.79 /10 10.54 and 63.46 8 8.97 and in the control group were 20.09 20 20.20 and 45.14 8 8.00, respectively. . Also, the highest and the lowest noise pressure levels in the exposure group were 95, 78 dB and 64, 50 dB, respectively. In addition, the highest frequency of acupuncture reported in the case group was 60% in the range of severe distress and 28% in the range of severe distress. However, the highest rate of acoustic annoyance in the control group was 68% in the non-annoyance range and 30% in the mild annoyance range. The results of the analysis of the third part of the acoustic annoyance questionnaire related to the situations that people experience during the day showed that the average experience of fatigue (3.38), fatigue and drowsiness (3.40), dizziness (3.46), Decreased focus strength (3.58), headache (3.67), more discomfort (3.57) than control group. In addition, headaches (3.67) and fatigue (2.49) had the highest mean of exposure and control groups, respectively. The results of the statistical analysis showed that there was a significant positive relationship between the scale of acoustic annoyance and mood states (fatigue, lethargy and drowsiness, dizziness, loss of concentration, dizziness, headache, discomfort) (p <0.05). Also, Kruskal-Wallis test was used to assess the scale of acoustic annoyance with demographic characteristics.The results of Cognitive Failure Survey in the employees of this industry were analyzed in four sections, mean of four sections of distraction, memory problems, inadvertent errors, failure to recall names in exposure group, respectively, 22/01, 20/60, 15/88, respectively. It was 5.70. However, the mean of the four sections in the control group were reported to be 16.44, 13.92, 13.24, 2.30, respectively. In addition, the mean correlation coefficient was upward (-0.778). 0/613) There is a strong association between acoustic annoyance and memory problems and lack of recall. Also, the mean of cognitive failure was analyzed by age, work experience, marital status and education. The results showed that the highest rate of cognitive failure was in the age of 27-33 years, work experience of 5-5 years and cognitive failure in people with Education was also less affected. Also, the relationship between sound pressure level and cognitive failure criteria showed a positive and significant relationship between them. There was also a significant relationship between Cognitive Failure Scale, acoustic annoyance and sound pressure level in both the exposure and control groups. r = 0.768, p <0.05) showed a significant positive relationship.

The results of the present study confirm that the noise level is higher than the recognized limit for hearing and mental health and consequently high levels of noise and cognitive impairment in ceramic workers. The most important outcome of acoustic disturbance in this population is a decrease in concentration, headache, dizziness, lethargy, and drowsiness that affect the physical and mental health of the individual and ultimately the productivity. Sound-induced annoyance followed by experienceEmotions such as fatigue and loss of concentration increase the likelihood of human error and sometimes irreparable occupational accidents, which makes clear the importance of noise exposure levels in terms of health and workplace safety. Given the significant relationship between these factors and noise pressure levels, it is recommended to take appropriate measures to reduce workers chr('39')exposure to noise in the industry in order to maintain employeeschr('39') mental health and increase their work efficiency. Also, considering the individual differences in the sense of distress, assessing peoplechr('39')s sensitivity to noise for work in areas with high noise pollution can also help improve workplace conditions and prevent serious injuries in susceptible individuals.

 

Workplace noise is one of the occupational hazards in the ceramic industry, which can cause noise annoyance to workers. The aim of the present study is to investigate the relationship between indicators of Noise annoyance and job burnout in the ceramic manufacturing industry.

A descriptive-analytical study was performed on 100 male workers. The inclusion criteria for participating in this study were: filling informed consent, having age less than 50 year, and work experience of at least 6 months, as well as not having cardiovascular disease, diabetes, and not taking any antidepressant medication. According to the measurement of environmental noise, individuals were divided into control group (50 people) and exposure on (50 people). noise dosimetry was performed for all participants. Two questionnaires on noise annoyance and job burnout were used for this purpose. the results were analyzed with spss19 software.

The results showed that 8- hour time weighted average – noise exposur level for the exposure and control groups for shift was calculated 86 dBA, 59 dBA respectively. The mean noise annoyance in the exposed and control group, was 70.79 and 20, respectively, and the mean burnout score was obtained 82.36 in the exposed and 36.62
in the control group. The results of the Spearman correlation test showed a positive and significant relationship between the dimensions of burnout and noise annoyance score(p <0.05). The results showed a significant relationship between the noise exposure level and the incidence of its annoyance and as well as job burnout (p <0.05)

The results showed a positive and significant relationship between noise annoyance and job burnout. It is recommended to adopt the appropriate noise control measures like engineering methods.

Chronic occupational noise exposure may constitute a risk factor for cardiovascular disease for workers. The aim of this study was to investigate the relationship between occupational noise exposure and noise annoyance with blood pressure, serum cholesterol and triglyceride levels in workers of a textile industry. Material and Method: This cross-sectional study was carried out among 220 employees of Savadkouh textile industry complex in Mazandaran province, Iran in 2017. To achieve the study objectives, the 8 -hour equivalent sound exposure level was measured and the cumulative noise exposure was calculated. Based on noise exposure level, workers were divided into control and case groups. Then, blood pressure was measured and blood samples were collected from each individual for determination of the serum cholesterol and triglyceride levels and they were transfered to the laboratory for further analysis. The noise annoyance scale and socio-demographic questionnaire were used to collect noise annoyance and other background and demographic information, respectively. Finally, Paired t-test, one-way ANOVA and multivariate regression were used to study the relationship between variables using SPSS Version 20. In total, 159 workers participated in this study considering the inclusion and exclusion criteria. Eighty-three participants were exposed to more than or equal to 85 dBA, and 76 person were exposed to less than 85 dBA noise level, respectively. The results showed that mean blood pressure and cholesterol were significantly different between the control and case groups (P-value< 0.05). Based on multivariate regression results, noise exposure, cumulative noise exposure (CNE) and noise annoyance had a significant effect on blood pressure (P-value< 0.001). Cholesterol was also significantly affected by noise exposure and noise annoyance (P-value< 0.005). Based on the results of current study, noise can be considered as a risk factor for cardiovascular disease ampong workers. Actually, high intensity noise affect serum cholesterol and blood pressure directly, and may do indirectly by causing noise annoyance which acts as a mediator. Therefore, it seems necessary to conduct a controlled cohort study to investigating the interactions among whole variables of interest.

Road traffic is considered as one of the main sources of noise pollution causing annoyance. In this study the relationship between noise pollution and demographic factors of residents living near Basij highway, north to south of Tehran’s district 15 was studied.
The noise measurement was conducted along 2 kilometers that was divided into 10 stations, each with a length of 200 meters. The measurement of equivalent level of noise took 5 minutes in each station. A questionnaire was developed to investigate the relationship between noise and
annoyance. The Cochran formula yielded a sample size of 170 people, and their demographic factors were examined. All stages of study was conducted ethically.
The noise annoyed women more than men, and 48.91% of women reported high annoyance.The minimum (75.9 dBA) and maximum (87.60 dBA) levels of noise were measured at the first and fifth stations, respectively. The relationships between noise annoyance and LeqA, sex, sleep disturbances,
headache, disturbance of the leisure time, and impaired concentration were statistically significant (P In this study it was found that traffic noise leads to dysfunction of the studied area residents.Indeed, women found the constant noise of the traffic an annoyance. Taking corrective measures to ensure physical and psychological health were thence recommended.

Noise pollution in urban areas has been recognized as a major problem. Since hearing damages are the main concern of noise exposure, other physical and psychological effects should not be ignored. Noise-induced annoyance and consequently its side-effects, such as fatigue and loss of concentration, would increase the probability of human errors occurrence and occasionally irreversible occupational accidents. This matter show the importance of noise exposure level from the standpoint of both community health and workplace safety.
Material and This cross-sectional study was conducted to investigate the annoyance caused by air transportation noise in tehran, 2014. In this sense, a sample of 200 individuals were selected from residential and nonindustrial noise-exposed population in four southwest regions in Tehran. Following, the study questionnaires including annoyance (Recommended based on ISO 15666-2003), visibility of airplane, noise perception, and demographic variables were distributed and completed by the participants. Data obtained from Integrated Noise Model (INM) and geographic coordinates of measurement stations, recorded by Glopal Positioning System (GPS), were entered into the GIS software in order to estimate air traffic noise.
The present study showed that the equivalent sound level of all regions during night, the day average sound level only in the Simetry Jey area, and the average night noise level in all regions except Dorahi Ghopan were more than the acceptable level; and the most precentage of people with high annoyance was belonged to night annoyance rate. On the other hand, the correlation between day level (DL) and day annoyance rate (P=0.01, R=0.142), night level and night annoyance rate (P=0.004, R=0.334), and Day-Night Average Sound Level (DNL) and the day-night annoyance rate (P Adopting management srategies for reduction of number of night flights or engineering measures such as improving construction to decrease the rate of receiving noise by exposed people can have a positive considerable effect on declining noise pollution and individuals’ annoyance rate.

Based on various studies، the noise can have a significant effect on human health. Annoyance is the most common bad effect that may be caused by the noise and traffic. Awareness of costs of traffic noise has various advantages in decision making and on control measures to reduce the traffic noise. Therefore، the purpose of this study is to analyze the costs of traffic noise on the residents'' health in city of Tabriz in 2011. Contingent valuation method (CVM) was used to obtain willingness to pay (WTP). First، the effects of noise on human، including individual dissatisfaction to noise، harassment and other effects of traffic noise were obtained using a questionnaire. Two methods were then applied to obtain the costs of noise effect on human health. One، directly from investigation of the relationship between WTP and annoyance caused by noise، and the other one، by investigating the relationship between annoyance and Level day-evening-night (Lden). The results were then compared with the determined thresholds. The results showed that 60% of individuals show medium and medium to high levels of annoyance. For groups with moderate annoyance (39% of cases) the amount of Lden was 67 dB with 65،593،125€، for groups with high level annoyance، Lden was 71 dB with the cost of 38،513،160 €. Since the burden of the costs’ of noise placed on the people of Tabriz are so heavy، control measures are suggested for policy makers that may yield worthy results in the long term.