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世界卫生组织相关材料显示,吸烟所造成的烟雾中含有约4000种化学物质,其中有50多种是致癌或促癌物质,主要导致哮喘、肺炎、肺癌、高血压、心脏病以及生殖发育等方面的疾病。成年人长期处在二手烟环境中易患癌症、心脏病、多种严重的呼吸系统疾病和心血管疾病。二手烟也会危及儿童健康,并使一些疾病的病情加重,如哮喘等。据不完全统计,每年全世界仅在工作场所就约有20万名人因长期吸入二手烟而死亡。证
World Health Organization related materials show that smoke caused by smoking contains about 4000 kinds of chemical substances, of which more than 50 kinds of carcinogenic or carcinogenic substances, mainly leading to asthma, pneumonia, lung cancer, hypertension, heart disease and reproductive development The disease. Adults are exposed to long-term exposure to secondhand smoke in cancer, heart disease, many serious respiratory diseases and cardiovascular diseases. Secondhand smoke can also endanger the health of children and aggravate some diseases, such as asthma. According to incomplete statistics, about 200,000 people in the world are only smothered by long-term inhaled secondhand smoke each year in the world alone. certificate