Metal chemical element is cancer-causing of for the very first time report are the case report that 1888 year ends cause cancer at the arsenic.More than 100 in the last yearses continuously have some metal chemical elements be confirmed make human body cancer-causing, this kind of phenomenon has already caused the high value of the medical science field.Below mainly introduce the circumstance of 5 kinds of cancer-causing metal. Arsenic arsenic is the first be confirmed the chemical element that has a cancer-causing function to the person, has the report confirmation the arsenic in the end of 80's can to the skin cancer, lung cancer.Someone thinks that the arsenic is the starting of cancer hair, urge a hair more.Old people to compare with cancer-causing of young man to arsenic, more sensitive,wholesale sunglasses the former gets in touch with concealed Qian in arsenic to expect shorter.When arsenic dust the grain is higher to expose, the its cancer-causing ability descends, whereas, cancer-causing the ability suddenly increase.This because when the arsenic dust grain exposes higher, the windpipe, bronchus glues the function to build up that the film cilia exercises, cans get rid of arsenic dusts grain and makes the organization causing cancer easily get better protection;Whereas, when the low doses dust hasn't caused the cancellation function of cilia, over a long period of time be placed in to physically absorb quantity in the environment like this will be more, cancer-causing the function is also stronger.Past measurement cancer-causing effect, exposing term is more more important than exposing strength.Chrome as early as 1890 people know chrome compound will to the person is cancer-causing.The 40's expects scholar in all countries to carry on many researches and report one after another behind, the most explicit basis comes from the manufacturing and application profession of the production and chrome sour salt pigment of sour salt of chrome.The United States once reported the worker lung cancer death rate of producing the chrome sour salt to increase 3000%, German pigment manufacturing industry worker the lung cancer outbreak led also very high.The animal experiment discovers that the chrome sour calcium, chrome sour zinc, chrome sour Si and chrome the sour lead all can guide a cancer, cancer-causing.Chrome is only one believe people to take of have metal of heredity toxicity, its toxicity is decided by to oxidize status and deliquescence degree, it is cancer-causing to however have already fused sour salt of small chrome of one degree. 1932 of Nie England and the Wales Nie Ye chain discover in the worker that lung cancer and nose swallow a cancer.The scholar thought that the cancer-causing Nie compound is mainly a carbon radicle Nie in early days, but majority of scholars in the near future think to contain the Nie dust as main carcinogen.Dissolubility Nie compound because its grain is small, present to annoy fog-like in shape, easily reach a lung department, with the result that the lung cancer is a lord;Is difficult the Nie compound dissolving sex present dust-like in shape, the grain is big, easily be detained nasal cavity, in addition to with the result that in addition to lung cancer, can also swallow a cancer to the nose.Both presented to unite a function while existing at the same time, cancer-causing of the risk would consumedly strengthen.The Pi just starts appearing the Epidemiology that the Pi causes cancer to the person to report at the beginning of 80's and causes the extensive concern of the scholars.At 7 Pi factories in the United States, the lung cancer death rate shows Zhao to increase Gao in 9000 workers.Follow an observation and also discover, especially once suffered from the lung cancer death in the worker of impatient Pi pneumonia to show Zhao to increase Gao.The animal experiment confirms that giving inside the big rat, monkey windpipe and again and again infusing to note metal Pi and oxidizing Pi and hydrogen to oxidize Pi etc. all can induct lung cancer.Cadmium England report for the very first time in 1965 and take place in the worker making the Nie-cadmium storage battery factory the number of prostate gland cancer is a lot of,mlb jerseys the afterward a series of research achievement expresses and get in touch with cadmium of worker's lung cancer the dangerous degree increase Gao.England carries on the lung cancer death rate of large-scale survey enunciation the workers to increase Gao in the worker produces factory at 17 cadmiums, and presents time and contact strength increment but augmentative trend with the homework in 1985.The animal experiment also confirms that cadmium dust or cadmium compound are a factor that inducts lung cancer.
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