Analysis Of The Health Status And Influence Factors On The Workers Exposed To Benzene Or Lead

Objective:To know the health status and the relating influence factors of the workers working with benzene in one petrochemical company and the workers working with lead in one storage battery company in Tianjin city, as well to provide scientific basis for departments to effectively develop health education and monitoring work, protect the health of workers, and early prevent and control the relative occupational diseases.Methods:Taking samples of 330 workers working with benzene in one monitored petrochemical company of Tianjin city from December of 2013 to October of 2014,and at the same time to monitor the Benzene series concentration in their workshop.Apply the indrafting risk evaluation method to divide those workers into two groups,low exposed group and high exposed group, and assess the health status of two groups separately.Collecting the occupational health examination data of 126 male workers working with lead in one storage battery company in Tianjin city from December of 2013 to October of 2014, and measure their blood lead level and investigate the influence of blood lead lelvel on workers.Establish database by Epi Data3.1 and take statistical analysis by SPSS17.0 on the obtained datas to analyse the influence factors for the chronic disease of workers using c 2 test and two independent samples' t test, and multiple factors Logistic regression analysis.Results:1. The enterprises those the workers work in with benzene have done a very good job of health education and monitoring and prevention.2. Monitor the 7 workshops of the workers working with benzene, the TWA is lower than the national average level. Using indrafting risk evaluation method to assess the extent of the workers exposed to benzene, and find that 166 workers are of high exposed to benzene and 164 workers are of low exposed to benzene.3. The multiple factors Logistic regression analysis shows that for the high exposed to benzene group the risk rise higher than those of low exposed to benzene group on hypertension, fatty liver, ALT rise, cardiovascular system abnormalities, and nervous system symptoms consciously, OR(95%CI) are respectively 2.16(1.277 ~ 3.687),2.39(1.435~3.980), 1.83(1.029~3.243), 1.93(1.071~3.471), 2.98(1.287~6.917).For the male workers working with Benzene, the risk of routine blood abnormalities of high exposed group is higher than the low exposed group, OR(95%CI) is 2.96(1.569~5.574), and for the female workers working with Benzene, the risk of routine blood abnormalities of high exposed group is higher than the low exposed group, OR(95%CI) is 4.78(2.067~11.058).4. For the 126 male workers working with lead, the blood lead scope is between16 m g/L ~ 260 m g/L, average level is(87.56 ± 35.62) m g/L, there is not any case beyond nation limit. Their anaemia case rate of anemia is 15.08%, case rate of hypertension is 27.78%, abnormal rate of electrocardiogram is 16.67%, subjective symptom case rate of musculoskeletal system is 17.46%, subjective symptom case rate of nervous system is 19.84%. For the anemia, the risk of the workers with 100mg/L~150mg/L and above blood lead content is higher than those with below 50mg/L, OR(95%CI) are 2.28(1.236~9.564) and 2.84(1.613~11.611); for whether the subjective symptom of nervous system occur, the case rate of the workers with100mg/L~150mg/L and above blood lead content is higher than those with below 50mg/L, OR(95%CI) are 1.83(1.094~7.349) and 2.37(1.514~12.076); for whether the subjective symptom of musculoskeletal system occur, the case rate of the workers with 100 mg/L ~150m g/L and above blood lead content is higher than those with below 50 ug/L, OR(95%CI) are 1.84(1.257~4.006) and 2.9(1.332~11.534); for the abnormal of electrocardiogram, the case rate of the workers with above 150ug/L blood lead content is higher than those with 50mg/L and below, OR(95%CI) is 3.41(1.756 ~ 15.670); for the hypertension, the risk of the workers with 100 m g/L ~150mg/L and above blood lead content is higher than those with below 50mg/L, OR(95%CI) is 2.36(1.242~ 7.606).Conclusion:The enterprises those the workers work in with benzene have done a very good job of health education and monitoring and prevention.All the TWA level of the workshops in the company is within the nation limit. For high exposed group the risk is higher than the low exposed group for exist routine blood abnormalities, hypertension, fatty liver, ALT rise, cardiovascular system abnormalities, and nervous system symptoms consciously. High blood lead makes the risk higher of workers on anemia, abnormal electrocardiogram, subjective symptom of nervous system and musculoskeletal system. Ontime monitoring on the lead in blood has an important significance to protect the health of workers.