What are soluble heavy metals?
The non-exhaustive list of heavy metals includes antimony (Sb), arsenic (As), barium (Ba), cadmium (Cd), chromium (Cr), lead (Pb), mercury (Hg) and selenium (Se). Children's toys and jewelry may contain high levels of these heavy metals, which put children at special risk through oral, inhalation, skin and hand-mouth contact. They are immersed in the oil in our hands, in the saliva in our mouths and in the acid in our stomachs, and stick to the surface like dust.
What are the hazards of soluble heavy metals?
Heavy metals are problematic because they can accumulate in living tissues, which poses a great threat to human health and the environment. The accumulation of heavy metals in tissues is particularly problematic in children, which can lead to mental defects, behavioral disorders, neurocognitive disorders, cancer/AIDS, respiratory diseases and cardiovascular diseases.
Limit of soluble heavy metals
Antimony: 60 ppm
Arsenic: 25 ppm
Barium: 1000 ppm
Cadmium: 75 parts per million
Chromium: 60 ppm
Lead: 90 parts per million
Mercury: 60 parts per million
Selenium: 500 ppm