居住环境中微量元素与白发现象的关系研究

研究青少年发色改变与居住环境中微量金属元素之间的关系,为青少年白发的预防与治疗提供理论依据.本文采用微波消解与ICP-AES法(电感耦合等离子体原子发射光谱法,Inductive coupled Plasma-Atomic Emission spectrometer),测定了某青少年白发现象高发地区的青少年白发人群与正常人头发样品以及该地区的地下水样品和土壤样品中7种微量金属元素Cu、Zn、Co、M、Fe、Ph、Cr的含量.结果表明,当地青少年白发人群头发中Cu、Fe含量明显低于正常人头发中Cu、Fe含量,Pb、Cr的含量高出正常人头发中Pb、Cr含量的2倍;地下水中金属元素Cu、Cn的含量明显低于国家标准值,而Co、Ni、Ph、Cr的含量远远超出标准值;土壤中各元素含量均在国家规定的限制值以下,但Pb含量相较其他微量金属元素含量较高.因此,当地青少年白发现象严重的原因可能与长期生活在微量金属元素含量不平衡的环境中,造成体内微量元素Cu、Zn含量失调以及Cr、Ph含量较高有关.当地居民应注意饮水安全,并通过其他方式及时补充体内不足的微量元素.

Study on the likely connection between the metallic element traces in the environment and the juvenile poliosis

The present article is aimed to disclose the likely connection between the metallic element traces in the environment and the juvenile poliosis so as to provide necessary theories and practical means for preventing and treating such disease among the young people. In our rcaearch, ICP-AES combined with microwave digestion technique has been used to investigate and measure the actual content of the following seven trace metal elements, that is, Cu, Zn, Co, Ni, Fe, Pb, Cr, in the samples taken from the groundwater and surface soil in the area where youth suffer from such aihnents. Samples have also been selected from the youth troubled with the disease as well as normal people free-from it. The results show that the content of Cu, Fe in the diseased samples are remarkably lower than that of Cu, Fe in black-hair samples. On the contrary, the content of Pb, Cr proves to be ahnost twice than that of Pb, Cr in the black-hair samples. As to the local groundwater samples, the content of Cu, Zn are found far below the content standard of Cu, Zn set by the state government, whereas Co, Ni, Pb, Cr has been detected noticeably over-contained. At the same time, the content of each of the seven elements has been found below the government-stated standard. As compared with other trace-metals, Pb is found significantly higher. From the above comparison and statistics, it can be roughly concluded that the widely existing local juvenile poliosis can chiefly be attributed to the long-time imbalanced content of the above-sald seven trace-metal elements in the living environment with the lower content of Cu and Zn to the higher content of Cr, Pb in human bodies. Therefore, the local residents should be asked to pay more attention to the drinking water security by adding the insufficient content of such trace metal elements to their bodies by all means.