Analysis:
Wang, a professor in the Department of Materials, School of Engineering, Zhengzhou University, told reporters that most of the plastic slippers produced by some informal manufacturers are recycled from industrial waste plastics. The recycled raw materials contain a lot of harmful substances, which will give off a pungent smell, which is very unfavorable to human health. In order to make slippers softer and brighter, these manufacturers will also add low-priced and inferior plasticizers and colorants in the shoe-making process, which will cause different degrees of harm to the human body.
Professor Wang suggested that when buying plastic products, try to buy white or brightly colored ones, and then smell them. If the purchased plastic products have a strong odor, it is best not to buy them for safety reasons.