电子计算机终端作业职业危害因素探讨

OCCUPATIONAL HAZARDS OF VDT OPERATORS

本文对长期从事VDT作业人员进行了调查。调查内容包括工作场所的微小气候(气温、相对湿度、风速、气压)、照明、噪声、空气离子、CO_2和细菌总数。还对57名VDT作业者和49名对照者进行了健康检查。结果表明,VDT作业场所噪声强度、空气中阳离子浓度较对照组高,照度低于标准,阴离子浓度比对照组低。VD T作业者主诉(头痛、头晕、记忆力减退、眼睛疲劳、关节酸痛、胸闷、乏力较对照组多。血小板中5-羟色胺含量较对照组明显增高。主要的职业危害因素有离子浓度改变,持续较高的噪声和较低的照度。

A Survey of occupational hazards of VDT operators was made. It contained the microclimate of workshops (including temperature, relative humidity, wind speed, atmospheric presure, illumination, noise, air ionization, ambient air CO2 content and bacteria counts ) , health examinations on 57 VDT operators and 49 references. The results showed that in the workshops there both higher noise intensity and cations in the air than the reference rooms.The illumination intensity of the rooms were all lower than the standard. The number of anions per unit volume air was lower in the VDT rooms than in the reference. There were more persons in the workshops complaining of discomfort than those in the reference.The operators had more subjective symptoms (headache, vertigo, bad memory, discomfort in the eyes, joint ache, tightness of chest, lack in strenhg) than the references. The 5-HT level in the platelet of the operators was also significantly higher than that of the reference. It was concluded that the main harmful effects came from the ion level change, thepersistent higher noise and the weak illumination,