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对不同吨位的大型货运机动车驾驶室内微小气候和空气质量进行了调查。结果表明,驾驶室内的气温比环境气温高3~6℃,湿度高3%~4%,气流速度高0.06~0.15m/s;噪声强度在80~86dB(A)之间,噪声频谱分析显示属低频噪声;驾驶室内一氧化碳、二氧化碳浓度随着行驶时间延长而增加,二氧化氮浓度有随着吨位增加而增加的趋势。调查结果说明,机动车驾驶员工作环境中存在一些有害因素,为今后进行深入研究其对驾驶员健康的影响打下了基础。
We surveyed the microclimate and air quality in the cabs of large cargo vehicles with different tonnages. The results show that the cabin temperature is 3 ~ 6 ℃ higher than the ambient temperature, the humidity is 3% ~ 4%, the airflow velocity is 0.06 ~ 0.15m / s; the noise intensity is between 80 ~ 86dB (A) Spectrum analysis showed low-frequency noise; carbon monoxide and carbon dioxide concentrations in the cab increased with longer travel time, and nitrogen dioxide concentrations tended to increase as tonnage increased. The survey results show that there are some harmful factors in the working environment of motor vehicle drivers, which lays the foundation for further research on their impact on driver’s health in the future.