A Study of the Health Hazard for Labor Exposed to Noise and Electromagnetic Field in the Plastic Processing Factory
| Autor: | Ming-Cheng Yen, 顏明政 |
|---|---|
| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 This article aimed at the research of noise and electromagnetic field in the plastic manufacture company which laborers expose to. Based on the safety and health and occupational disease prevention are the directions of this research, so we analyzed the detection of noise and electromagnetic field to which laborers expose in the plastic company scene, laborer health examination field and the questionnaire survey to the staff to find out the relationship between the above two factor of damage and cardiovascular disease. In this article we measure noise and electromagnetic intensity of machine and laborer exposure in two different plastic factory. This article use immediate audio frequency analyzer with 1/1 and 1/3 octave to measure noise and Non-ionizing radiation real-time low frequency electromagnetism field intensity analyzer to measure electromagnetic intensity. We distinguish our experiment into three part, including 3 part of questionnaire survey and health examination, the first part of questionnaire survey is high exposure group involving in 30 people, and the second part of questionnaire survey is generally exposure group involving in 30 people and the third is reference group involving in 20 people. On the other side, the first part of health examination is high exposure group involving in 47 people, and the second part of health examination is generally exposure group involving in 47 people and the third is reference group involving in 30 people. Using statistical methods to examine and compare the resource of the questionnaire survey and the health examination data, such as Descriptive Statistics, Chi-square test, T-Test, One Way Analysis of Variance, Scheffe''s test…and so on. After analysis, we obtain the data understood the gravity of problems that is laborer in environmental pollution and harm exposure faces in the operational site. This research demonstrated that the scene exposed severity, In the noise aspect, high exposure group is average 90 decibels above, generally exposure group is average 86 decibels above, and the biggest volume of spectral analysis is 98.2 decibels, when the frequency range is 2KHz. In the electromagnetism field intensity aspect, we measure the mean value is 1060mG. The noise harm is widespread, and it distribute entire factory all around, and the electromagnetic field has surpasses safe suggestion value 833mG, only few machine, but it must pay attention to its exposed time not to be as long time as possible to causes the damage. In health examination material by Hypertension is a significance, and in the questionnaire survey harm cognition, the noise protection guidance is not too explicit, Every time only posts the indication, very few laborers is in lack of the health consciousness in the personal defense equipment maintenance, the electromagnetic field does not have the obvious harm, therefore the protection guidance does not have completely, laborer should enhance the harm cognition, reduces causes the damage, guarantees the safe working conditions and the healthy body. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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