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

摘要：

重金属对环境的危害已经受到广泛的重视，烟草的重金属安全性也引起了人们的广泛关注。从烟草中重金属的来源、烟草中重金属的分配积累及其影响因素、卷烟和烟气中重金属的迁移等三个方面进行了综述，指出控制重金属的关键为吸收、分配、加工、过滤和人体吸收等环节，并对烟草重金属控制方法、地域和品种之间的差异、烟株对重金属的吸收分配机理和影响因素、烟草重金属相关限量标准的制定等方面提出建议，以期为控制烟草和卷烟中的重金属提供参考。

关键词: 烟草;卷烟;重金属;分配;迁移