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城里人遭遇堵车,可以说是司空见惯。这时,许多人为了透透气,或是为了省油,干脆关掉空调,打开车窗。但是,最近中国疾病预防控制中心提示,车内开窗通风需注意时间、地点,堵车时最好别开窗。一般来说,堵车严重的地方比较狭窄、拥挤,空气流通不好,苯并芘的含量较高。苯并芘是一种有特殊气味的物质,它不但对呼吸道有刺激作用,还是一种致癌物,尤其肺癌与这种气体关系密切。此外,遇到交通堵
People in the city encounter traffic jams, can be said to be commonplace. At this time, many people in order to breathe, or to fuel-efficient, simply turn off the air conditioning, open the windows. However, recently China Center for Disease Control suggested that the car window ventilation should pay attention to the time, place, traffic jams best not to open the window. In general, serious traffic jam places are relatively narrow, crowded, air circulation is not good, benzopyrene content is higher. Benzo [a] pyrene is a substance with a special smell. It not only stimulates the respiratory tract, but also a carcinogen, especially lung cancer. In addition, encountered traffic jam