1. Seafood
2. Some traditional Chinese medicine
cinnabar contains mercury and realgar contains arsenic. Long term and large-scale use can lead to heavy metal accumulation and serious liver and kidney function damage.
3. Animal offal
once there are unsafe factors in poultry feed, some harmful substances such as heavy metals will be deposited in the offal. When eating animal offal, it is best to mix more coarse grains and vegetables to supplement dietary fiber.
4. Preserved eggs
when making preserved eggs, lead oxide can gradually penetrate into the eggs. Preserved eggs on the market can be divided into lead preserved eggs and lead-free preserved eggs. You can recognize the label and choose lead-free preserved eggs; Add vinegar when eating preserved eggs. Acids can minimize the absorption of toxic substances in the human body.
5. Drink drinks in cans
cans are made of aluminum alloy, and the inner wall of the cans is coated with a layer of organic paint to isolate the aluminum alloy from the drinks. During the processing of some unqualified aluminum cans, it is likely that some places are not coated with protective coatings or are coated too thin. Over time, aluminum elements gradually dissolve, especially when the drinks in the cans are acidic or alkaline.
6. Tableware with bright colors
in order to keep the pattern from changing color, some heavy metals such as lead and cadmium can be “fixed” when firing tableware. If inferior pigments are used, cadmium will dissolve into the food as long as they encounter acid-base food in the process of using these tableware in the future. Suggestion: try to choose plain tableware with light color; Try to choose tableware with patterns on the top, edge and outside of porcelain and less contact with food; The newly bought ceramic tableware can dissolve the harmful substances in the ceramic tableware by boiling water for 5 minutes before the first use.
7. The water in the drinking fountain
is seriously unqualified. In the drinking fountain, the material of the stainless steel liner is unstable, resulting in the content of chromium and nickel exceeding the standard. However, the carcinogens such as heavy metals, chlorine and chloroform dissolved in the water can not be seen visually, and there will be no consequences in the short term, but they will deposit in the body after long-term drinking, Seriously affect health.
suggestion: when purchasing drinking fountains, pay attention to whether there is a “3C” mark of national certification; Clean and check the inner tank of the water dispenser every three months.
8. Copper or lead faucets
the longer copper water meters, faucets and lead containing water pipes are used, the lower the pH value of tap water, and the greater the degree of heavy metal leakage pollution.
suggestion: do not install softened water device, because softened water is easier to dissolve copper and lead.