What harm does it do to human health for women to work in leather shoes factory for a long time?

Shoe factories will be exposed to a lot of organic viscose for a long time, which contains a lot of benzene. Chronic benzene poisoning will damage the hematopoietic system, lead to leukopenia in the early stage (decreased immunity, easy to get sick), and continue to develop will lead to abnormal platelet number and function (prone to gingival bleeding, mucosal bleeding, prolonged menstrual period (seriously speaking, many women workers in shoe factories died for this reason). In the worst case, it can lead to severe anemia, pancytopenia and even aplastic anemia. What I just learned this year, the teacher repeatedly stressed in class, but I really don't know if it really suits your situation.