Third, we must reduce benzene exposure, chronic benzene poisoning major harm to the human hematopoietic system, caused WBC, decrease in the number of platelets, induced leukemia.

• 第三,要减少苯的接触，慢性苯中毒主要伤害人体的造血系统，引起白细胞，血小板数量的减少，诱发白血病。