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当前环境保护问题已经是全人类所要面对的一个非常严峻的问题,全球气候变暖,大气污染,沙尘暴,雾霾天气,以及由环境持续恶化引起的污染问题正在影响、威胁着全人类,可是全国数以万计的高校、中学的化学实验室几乎每天都在排放污染物,这种“聚沙成塔”的污染成分复杂,累积效应强而又容易为人忽视。化学实验教师既要让学生及时准确地完成化学实验,又要在实验中尽量减少或不污染环境。
At present, the issue of environmental protection is already a very serious issue for all mankind. Global warming, air pollution, sandstorms, fog and haze, as well as the pollution problems caused by the continuous deterioration of the environment are affecting and threaten all mankind. However, Tens of thousands of chemical laboratories in universities and secondary schools in the country discharge pollutants almost daily, and the pollution components of this kind of “gathering sand into towers” are complex and have a strong cumulative effect that can easily be overlooked. Chemistry experiment teachers should not only let the students complete the chemistry experiment timely and accurately, but also try to reduce or not pollute the environment in the experiment.