多功能呼吸同步采样仪现场应用评价

Evaluation on the application of the breath synchronous multi-functional sampler

目的 评价多功能呼吸同步采样仪的实际应用价值。方法 使用多功能呼吸同步 (尘、毒 )采样仪、常规定点粉尘采样仪、个体粉尘采样仪以及肺通气量仪 ,对某市 2 7个工厂的 95个粉尘作业工种 (岗位 )进行采样。试点测试 3个厂 ,扩大测试完共获得有效样品 692个进行统计分析。结果 (1)多功能呼吸同步采样仪测出的粉尘浓度稍高于常规定点粉尘采样仪和个体粉尘采样仪的测定结果 ,经显著性检验差异无显著意义 (P >0 0 5 )。 (2 )多功能呼吸同步采样仪测得的分散度与个体粉尘测尘仪测定结果差异无显著意义 (P >0 0 5 )。 (3 )根据多功能呼吸同步采样仪与定点粉尘采样仪的测定结果所进行的粉尘危害程度分级 ,其结果大体一致。 (4 )根据多功能呼吸同步采样仪与YA Ⅱ Pt型肺通气量仪测得的肺通气量进行的工人体力劳动强度分级 ,其结果基本一致。结论 多功能呼吸同步采样仪具有轻便、易操作、用呼吸作动力和同时测得粉尘浓度、肺通气量等优点 ,有较大的应用前景。

Objective To evaluate the application of the breath synchronous multi functional sampler at workplace.Methods The multi functional sampling instrument,routine dust sampler,personal dust sampler and pulmonary ventilation meter were used in the survery.692 samples taken from 95 work sites of 27 plants were measured for 15～20 minutes every time,two times a day in a continuous 3 days.Results(1)The concentrations of dust measured by multi functional sampler were slightly higher than that with routine dust sampler or personal dust sampler,but there were no significant difference(P>0 05).(2)Dispersiity measured with multi functional sampler was in accordance with that from personal dust sampler.(3)Classification of hazard levels due to dust exposure was basically accordance with other dust samplers.(4)Labor intensity classification of workers with multi functional sampler was in accordance with that from pulmonary ventilation meter.Conclusion Multi functional sampler is valuable in classification of hazard level due to dust exposure and of labor intensity of workers.