即使吸烟者已离开吸烟环境,但香烟残余毒素还是会附着于物体表面,久久不散,这就是三手烟。美国一项研究发现,三手烟可能会伤害人体细胞、破坏细胞DNA,其危害程度与一手烟、二手烟不相上下。美国加州劳伦斯·柏克莱国家实验室的研究人员进行了两项测试,以评估三手烟毒素会造成多大伤害。研究结果显示,香烟烟雾中的残存物质“烟草特异性亚硝胺”会损害人体细胞DNA。导致基因突变,增加患癌症的风险。这些有毒物质黏在 Even if smokers have left the smoking environment, but the cigarette residual toxins will still be attached to the surface of the object, a long time to go, this is thirdhand smoke. A study in the United States found that third-hand smoke may harm human cells and damage cellular DNA, which is as harmful as first-hand and secondhand smoke. Researchers at the Lawrence Berkeley National Laboratory in California, USA, conducted two tests to assess how much the three-hand smoke toxin can cause. The results show that the remaining material in cigarette smoke, “tobacco-specific nitrosamines,” can damage human cellular DNA. Lead to gene mutation, increase the risk of cancer. These toxic substances stick in