Even iron should not be too high, otherwise it will be poisoned.
The above metal elements are extremely trace in human body.
According to the harm to human body,
Lead and cadmium, if slightly higher, are harmful to human body.
Bismuth, some compounds are beneficial to human body, such as stomach medicine, bismuth aluminate tablets, Weibizhi,
Tin, most compounds are harmless to human body. There are many tableware and tea sets, all of which are tin alloys. As long as the tin content in the body is not too high, it is basically harmless
To sum up, touching is touching your hands, and washing your hands after touching is harmless.
Inhalation is harmful, and large consumption is definitely harmful to human body.