What are the hazards to the body during the production of PVC pipes?

What are the hazards to the body during the production of PVC pipes?
The HCL gas released by PVC in the production process is harmful to the human body, but there is generally no problem with good ventilation.
PVC pipes are soft and hard. Generally, a large amount of plastic PVC pipes are added with plasticizers, which may be environmentally friendly plasticizers containing phthalates. Pay attention to harmful answers;
Rigid PVC pipes are generally not added with plasticizers, so don't worry.If you want to know more about it please do not hesitate to contact me. WhatsApp:+86-15966835076.