Lal N, Sharma P K, Nagpaul K K, Behera D, Malik S K
Int J Clin Pharmacol Ther Toxicol. 1987 Jan;25(1):36-7.
Tobacco is chewed in the form of snuff and thus its radioactivity--if there is any--goes directly into the body. Besides normal smoking, tobacco is also smoked in reverse manner in the form of "chutta", an indigenously prepared cigar made from the home grown plants of Nicotinia tobacum in South East coastal towns and villages in India. The burnt residue and the radioactive element--if there is any--in the case of chutta smoking will also go directly in the body causing hazardous effects. Uranium traces were determined in commercially available samples of snuff, chutta, bidi and cigarette tobacco using radiation damage etch technique. The analysis showed that uranium levels varied from 7.4 to 19.1 ppm in snuff, 0.16 to 0.37 ppm in chutta, 0.13 to 0.23 in bidi and 0.037 to 0.12 ppm in cigarette tobacco.
烟草以鼻烟的形式被咀嚼，因此其放射性——如果存在的话——会直接进入人体。除了正常吸烟外，烟草还以“chutta”这种反向吸烟的形式被吸食，“chutta”是一种在印度东南沿海城镇和村庄用当地种植的烟草属植物自制的雪茄。在吸食“chutta”的情况下，燃烧后的残渣以及放射性元素——如果存在的话——也会直接进入人体，造成有害影响。使用辐射损伤蚀刻技术测定了市售鼻烟、“chutta”、比迪烟和卷烟烟草样品中的铀痕量。分析表明，鼻烟中的铀含量在7.4至19.1 ppm之间，“chutta”中的铀含量在0.16至0.37 ppm之间，比迪烟中的铀含量在0.13至0.23之间，卷烟烟草中的铀含量在0.037至0.12 ppm之间。
