Analysis of electrocardiogram and blood related indicators in workers occupationally exposed to mercury in Jiangsu Province from 2016 to 2018
10.3760/cma.j.issn.1001-9391.2019.12.020
- VernacularTitle: 2016~2018年江苏省某企业职业性汞作业工人职业健康体检结果
- Author:
Ping YU
1
;
Haoyang YIN
2
;
Jiadi GUO
2
;
Enmin DING
3
;
Baoli ZHU
3
;
Shuangjing CHEN
3
Author Information
1. Dynamic electrocardiogram room of Jiangsu Provincial People's Hospital Nanjing 210029, China
2. School of Public Health, Nanjing Medical University, Nanjing 211166, China
3. Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China
- Publication Type:Journal Article
- Keywords:
mercury exposure;
cardiovascular system;
blood routine;
blood biochemistry
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2019;37(12):949-952
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the health status of occupational mercury workers and reveal the effects of mercury exposure on the cardiovascular system.
Methods:In June 2019, a total of 2651 mercury workers participated in the occupational health examination between 2016-2018 from a thermometer manufacturing plant and a fluorescent lamp manufacturing plant were included in this study. Then, they were divided into a high-level mercury exposure group (425 workers whose urine mercury concentration >35 μg/g creatinine) and a low-mercury mercury exposure group (2226 workers whose urinary mercury concentration <35 μg/g creatinine) . Mercury concentration in the workplace was also detected. Finally, the results of electrocardiogram (ECG) , blood routine, blood biochemistry and other physical examinations were analyzed. The measurement data of age and exposure years were analyzed by test. Urinary mercury and blood parameters were analyzed by Mann-Whitney nonparametric test. Chi-square test was used for the analyses of gender, ECG abnormality rate and other categorical data.
Results:The 8-hour weighted average allowable concentration (CTWA) of mercury in the workplace of high-exposure group was 0.002 2-0.152 mg/m3. The abnormal rate of ECG in the high-exposed group (29.6%) was higher than that in the low-exposure group (10.1%) in 2018 (P<0.01) . Compared with the low-exposure group, the WBC of the high-exposure group from 2016 to 2018 was increased, with statistically significance (P<0.05) ; the RBC of the high-exposure group in 2016 and 2017 was decreased, with statistically significance (P<0.01) ; the total bilirubin concentration in the high-exposure group was decreased from 2016 to 2018, with statistically significance (P<0.05) .
Conclusion:Long-term exposure to high concentration of mercury in the workplace may influence cardiovascular system. Therefore, engineering protection and individual protection should be implemented well.
