13种品牌的香烟,砷、镉、铅超标严重:
这份研究是美国和加拿大的研究人员联合做的。从05年开始,他们耗时三年检验了中国市场上几乎所有的常见香烟品牌,分析其物理特性、重金属含量等。有烟草专卖局的专家接受采访时回应称,香烟中的重金属含量是没有标准的,所以无法比较。其实不然,加拿大对香烟的检测非常严格,生产和进口厂家都需要检测并向卫生部报备关键数字,这次比较的正是加拿大的同期标准。在05/06年所检测的13个中国香烟品牌中,砷的平均含量为0.82μg/g(0.3~3.3),镉为3.21μg/g(2.0~5.4),铅为2.65μg/g(1.2~6.5),铬为0.55μg/g(0.0~1.0)。除了铬之外,其它三种重金属都严重超标。
Overall, as depicted in figure 1, the levels of metals of health concern (Cr, As, Cd, Pb) varied considerably among brands. The tested Chinese brands averaged 0.55 μg/g Cr (range 0.0–1.0), 0.78 μg/g As (range 0.3–3.3), 3.24 μg/g Cd (range 2.0–5.4) and 2.54 μg/g Pb (range 1.2–6.5). figure 2 presents comparison data from the Canadian market in 2004 (see Hammond and O'Connor for more details24) indicating that levels of Cr are comparable to Canadian brands (though statistically significantly different, p values <0.02 by t test), but that levels of As, Cd and Pb are substantially (2–3-fold) higher (p values <0.0001).
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