Does anyone know that it is harmful for chemists to detect heavy metals? If so, through what channels was it introduced into the body?

This is harmless, isn't it? Many of my classmates are doing this job, and he will not spread toxicity through air or skin. Although heavy metals are toxic, they are harmless as long as they are not eaten by mistake. In addition, the experimenter wears experimental clothes and gloves to take samples. No problem. At present, the content of heavy metals in many foods is seriously exceeding the standard, and everyone eats it unconsciously. It's okay.

(Shanghai Nonferrous Metals Industry Technology Monitoring Center Co., Ltd.-completed by Mr. Zhao)