[Investigation and case analysis of an occupational chronic benzene poisoning accident].

This article investigated an occupational chronic benzene poisoning incident that occurred in a sealing material factory in Hebei Province in September 2019, analyzed the clinical data of workers, to explore the causes of occupational chronic benzene poisoning, and summarize the diagnosis and treatment characteristics and treatment outcome. According to GBZ 68-2013 "Diagnosis of Occupational Benzene Poisoning", a total of 12 cases of occupational chronic benzene poisoning were diagnosed among the 20 workers, including 2 cases of occupational chronic mild benzene poisoning, 7 cases of moderate benzene poisoning, and 3 cases of severe benzene poisoning. Both mild and moderate poisoning patients had recovered after treatment. Severely poisoned patients had recovered more slowly, and the white blood cell count was still 2.0×10(9)-3.0×10(9)/L during the 1-year follow-up. This benzene poisoning incident was caused by illegal operations. The responsibility of the employer, the supervision of the administrative agency, and the awareness of personal protection of employees should be strengthened to avoid or reduce the occurrence of poisoning incidents and ensure the health of workers.本文对2019年9月河北省某密封材料厂发生的一起职业性慢性苯中毒事件进行调查，并对工人的临床资料进行分析，探讨职业性慢性苯中毒的原因，总结诊治特点及治疗转归。在20名就诊工人中，根据GBZ 68-2013《职业性苯中毒的诊断》，共确诊职业性慢性苯中毒12例，诊断为职业性慢性轻度苯中毒2例、中度苯中毒7例、重度苯中毒3例。轻度中毒及中度中毒患者经过治疗均已痊愈；重度中毒患者恢复较慢，随访1年白细胞计数仍在2.0×10(9)~3.0×10(9)/L。本次苯中毒事件系违规作业引起的，应加强用人单位责任、行政机关监管以及职工个人防护意识，避免或减少中毒事件的发生，确保劳动者的健康。.