关键词: 烟草;卷烟;重金属;分配;迁移

Abstract:

Heavy metal damage to environment has drew wide attention of the public in recent years. The security of tobacco products has also been closely concerned by the people. This article summarized the following 3 aspects: sources of heavy metal in tobacco products, the distribution and accumulation of heavy metal in different organs of tobacco, and the transfer of heavy metal in cigarette and smoke. It pointed out the key links of controlling heavy metal are absorption, distribution, procession, filtration and absorbability by human body. This article also gave some suggestions about the control methods of heavy metal in tobacco products, the differences between regions and breeds, the mechanisms and the affecting factors of absorption and distribution of heavy metal in tobacco plant, and the formulation of standards for limited quantity of heavy metal in tobacco products, which was excepted to provide reference for heavy metal control.

Key words: tobacco, cigarette, heavy metal, distribution, transfer