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为探讨长期接触低浓度苯乙烯作业工人的健康状况，我们对某厂苯乙烯作业工人进行了调查，现将结果报告如下：1对象和方法1．1对象选择某厂苯乙烯作业工人223名为观察组，平均年龄28．3岁，平均专业工龄为15．2年；选择健康的非苯乙烯无害作业人员192名为对照组，平均年龄39．2
To investigate the long-term exposure to low-concentration styrene workers health status, we conducted a survey of styrene plant workers in a factory, the results are reported as follows: 1 objects and methods 1.1 object selection of a factory 223 workers of styrene The observation group, the average age of 28.3 years, the average professional service life was 15.2 years; 192 healthy non-styrofoam workers were selected as the control group, the average age of 39.2