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将34名接触销化甘油（NG）作业工人和32名对照组人员MV1和MV5两个通道的24小时动态心电结果进行对比分析，显示，当NG平均浓度为1．81mg／m3、平均接触工龄为16.32年时，作业工人可出现偶发性异位心律。其中发生室性早搏的人数接触组与对照组之间无显著差异，但室上性早搏的人数接触组明显多于对照组（P＜0．01）。接触组室性早搏和室上性早搏的早搏数，均显著高于对照组（P＜0．01）；两种早搏的早搏数有随车间空气中NG浓度、接触NG作业工龄增高而增加的趋势，同时作业班外的发生率高于作业班中。研究表明：在该NG作业现场，NG对作业工人的心电有一定影响。
A comparative analysis of 24-hour Holter monitoring results of 34 channels of migraine glycerol (NG) workers and 32 control subjects with MV1 and MV5 channels showed that when the mean NG concentration was 1.81 mg / m3, the average exposure The length of service is 16.32 years, working workers may have occasional ectopic heart rhythm. There was no significant difference between the number of premature ventricular contractions and the control group, but the number of premature ventricular contractions was significantly higher in the exposure group than in the control group (P <0.01). The number of premature beats in premature ventricular contractions and supraventricular premature beats in contact group were significantly higher than those in control group (P <0.01). The number of premature beats in two premature beats increased with the increase of NG concentration in working air and exposure to NG , While the incidence of operating outside the class is higher than the operating class. The research shows that NG has certain influence on the workers’ ECG during the NG work site.