How much heavy metal do we eat into

How much heavy metal do we eat into


Caricature Single monarch
It is poisonous that all heavy metal exceed standard
Chemistry have density greater than metal of 4.5g/cm3, call heavy metal, such as copper, lead, zinc, iron, cobalt, nickel,etc.. Some heavy metal, for instance manganese, copper, zinc, iron,etc., it is the microelement that the human life activity needs, but the majority of heavy metal, for instance mercury, lead, cadmium,etc., it is not life activity that needs, it is harmful to human body and all heavy metal exceed certain density.
Because heavy metal can't degrade living beings, so enterprising health to reach us very willing to come out basically.
At the 2009 on the senior level forum, food security of China, China Agricultural University food science and dean of nutrition project the intersection of cloud and wave Luo spring a surprise with one remark: Until happen occasionally mix, play tricks, compare, medicine remain with heavy metal poisonous the intersection of harmful substance and content exceeding standard until of our country potential threat of food security loud in the food! Among them, 36% intaking amount of meal lead exceeds safe limit, especially the content of 100-year egg is relatively high. The most pollution of cadmium exists in softwares and shellfish animal on one's body.
Fan ZhiHong, nutritionist of China Agricultural University, has written articles to point out, the plant food is safer for mankind than the animal food too, ecological law tell us whether enter high one the intersection of nutrition and grade each time, difficult to decompose polluter, can concentrate several and even several dozen. For example, if the density of a certain polluter is 1/100,000 in water, will concentrate to more than 1/10000 while reaching the alga; The small fish make a living with the algae of drinking water, it will continue concentrating pollution; The big fish eat the small fish, one can swallow the small fish and accumulate the polluter for several months; The aquatic bird eats the big fish, the speed that it accumulates pollution is faster The polluter from environment, will get higher gathering in animal's body, therefore the level of pollution of animal's food is higher than the valley beans food.
Heavy metal, seem very difficult and the food is linked to. In fact, these are " poisonous " Heavy metal invade slowly already at the beginning food of us.

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