某选煤厂噪声暴露及听力损失相关影响因素的调查
发布时间：2018-12-31 07:59
【摘要】：目的：了解本市某选煤厂劳动者的噪声暴露以及听力损失情况,探讨影响劳动者听力损失的相关因素,为职业性噪声聋的预防提供理论依据与指导。 方法：采取作业场所噪声现场检测、问卷调查与职业健康检查相结合的方法,对选煤厂劳动者的噪声暴露量、劳动者噪声相关知识、防护措施以及听力损失的情况进行横断面调查。采用多重线性回归分析的方法对劳动者相关知识知晓程度的影响因素、劳动者听力损失的影响因素进行统计分析,使用路径分析的方法对影响劳动者防护设备使用频率的因素进行分析。 结果： (1)劳动者工作地点噪声强度在70.0dB(A)-99.3dB(A)之间,劳动者LEX,8h(8小时等效声级)在77.8dB(A)-93.9dB(A)之间,其中85dB(A)以上的占38.8%；劳动者累积噪声暴露量(Cumulative Noise Exposure, CNE)于79.8dB(A)-108.4dB(A)之间,其中100dB(A)以上的占19.8%。 (2)劳动者关于噪声相关知识的知晓程度与劳动者的文化程度以及参加相关噪声知识培训有关。噪声相关知识的培训与知晓程度正相关(r=0.409,p0.05),文化程度与知晓程度正相关(r=0.471,p0.05)。 (3)调查对象中每次都使用防护设备的占29.3%,噪声防护设备的使用频率受相关知识的知晓程度直接影响(β=0.409,p0.05),噪声相关知识的培训通过相关知识知晓程度对防护设备的使用频率产生间接影响(β=0.168,p0.05),劳动者的文化程度通过相关知识知晓程度对防护设备的使用频率产生间接影响(β=0.110,p0.05)。 (4)听力损失与劳动者噪声相关知识的知晓程度、劳动防护设备的使用频率、劳动者累积噪声暴露量有关。噪声相关知识的知晓程度与听力损失负相关(r=-0.262,p0.05),防护设备的使用频率与听力损失负相关(r=-0.231,p0.05),累积噪声暴露量与听力损失正相关(r=0.215,p0.05)。 结论： 选煤厂噪声污染严重,相关知识知晓程度和防护设备的使用频率较低。相关知识知晓程度与文化程度、培训情况有关；防护设备使用频率与文化程度、培训情况、相关知识知晓程度有关；劳动者听力损失严重程度与其知识知晓程度、累积噪声暴露量、防护设备的使用频率有关。
[Abstract]:Objective: to investigate the noise exposure and hearing loss of workers in a coal preparation plant in this city, to explore the related factors affecting the hearing loss of workers, and to provide theoretical basis and guidance for the prevention of occupational noise-induced deafness. Methods: the methods of site noise detection, questionnaire survey and occupational health examination were used to investigate the noise exposure and related knowledge of workers in coal preparation plant. The protective measures and hearing loss were investigated cross-sectional. Multiple linear regression analysis was used to analyze the influencing factors of workers' knowledge and hearing loss. Using the method of path analysis, the factors influencing the frequency of labor protection equipment are analyzed. Results: (1) the noise intensity in the workplace was between 70.0dB (A) and 99.3dB (A), and the LEX,8h (equivalent sound level of 8 hours) was between 77.8dB (A) and 93.9dB (A). 38.8% of them were above 85dB (A). The cumulative noise exposure (Cumulative Noise Exposure, CNE) of workers was between 79.8dB (A) and 108.4dB (A), in which more than 100dB (A) accounted for 19. 8%. (2) the knowledge of noise related knowledge is related to the worker's education level and participation in the training of related noise knowledge. The training of noise-related knowledge was positively correlated with the level of awareness (r = 0.409, p 0.05), and the level of education was positively correlated with the degree of awareness (r = 0.471p / 0.05). (3) 29.3% of the subjects used protective equipment every time. The frequency of noise protection equipment was directly affected by the knowledge level (尾 = 0.409 p0.05). The training of noise-related knowledge has an indirect effect on the frequency of use of protective equipment through the level of knowledge (尾 = 0.168p0.05). The educational level of workers had indirect influence on the frequency of using protective equipment through the degree of knowledge (尾 = 0.110p 0.05). (4) the degree of hearing loss is related to the knowledge of workers' noise, the frequency of use of labor protection equipment, and the cumulative exposure of workers to noise. The awareness of noise-related knowledge was negatively correlated with hearing loss (r-0.262, p0.05), and the frequency of use of protective equipment was negatively correlated with hearing loss (r-0.231, p0.05). Cumulative noise exposure was positively correlated with hearing loss (r = 0.215, p 0.05). Conclusion: the noise pollution of coal preparation plant is serious, the knowledge level and the use frequency of protective equipment are low. The degree of knowledge of relevant knowledge is related to the level of education and training, and the frequency of use of protective equipment is related to the level of education, training, and the degree of knowledge of relevant knowledge. The severity of hearing loss is related to the degree of knowledge, cumulative noise exposure and the frequency of use of protective equipment.
【学位授予单位】：山西医科大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：R134
本文编号：2396289
[Abstract]:Objective: to investigate the noise exposure and hearing loss of workers in a coal preparation plant in this city, to explore the related factors affecting the hearing loss of workers, and to provide theoretical basis and guidance for the prevention of occupational noise-induced deafness. Methods: the methods of site noise detection, questionnaire survey and occupational health examination were used to investigate the noise exposure and related knowledge of workers in coal preparation plant. The protective measures and hearing loss were investigated cross-sectional. Multiple linear regression analysis was used to analyze the influencing factors of workers' knowledge and hearing loss. Using the method of path analysis, the factors influencing the frequency of labor protection equipment are analyzed. Results: (1) the noise intensity in the workplace was between 70.0dB (A) and 99.3dB (A), and the LEX,8h (equivalent sound level of 8 hours) was between 77.8dB (A) and 93.9dB (A). 38.8% of them were above 85dB (A). The cumulative noise exposure (Cumulative Noise Exposure, CNE) of workers was between 79.8dB (A) and 108.4dB (A), in which more than 100dB (A) accounted for 19. 8%. (2) the knowledge of noise related knowledge is related to the worker's education level and participation in the training of related noise knowledge. The training of noise-related knowledge was positively correlated with the level of awareness (r = 0.409, p 0.05), and the level of education was positively correlated with the degree of awareness (r = 0.471p / 0.05). (3) 29.3% of the subjects used protective equipment every time. The frequency of noise protection equipment was directly affected by the knowledge level (尾 = 0.409 p0.05). The training of noise-related knowledge has an indirect effect on the frequency of use of protective equipment through the level of knowledge (尾 = 0.168p0.05). The educational level of workers had indirect influence on the frequency of using protective equipment through the degree of knowledge (尾 = 0.110p 0.05). (4) the degree of hearing loss is related to the knowledge of workers' noise, the frequency of use of labor protection equipment, and the cumulative exposure of workers to noise. The awareness of noise-related knowledge was negatively correlated with hearing loss (r-0.262, p0.05), and the frequency of use of protective equipment was negatively correlated with hearing loss (r-0.231, p0.05). Cumulative noise exposure was positively correlated with hearing loss (r = 0.215, p 0.05). Conclusion: the noise pollution of coal preparation plant is serious, the knowledge level and the use frequency of protective equipment are low. The degree of knowledge of relevant knowledge is related to the level of education and training, and the frequency of use of protective equipment is related to the level of education, training, and the degree of knowledge of relevant knowledge. The severity of hearing loss is related to the degree of knowledge, cumulative noise exposure and the frequency of use of protective equipment.
【学位授予单位】：山西医科大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：R134
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