随着国民经济的不断发展,人民生活水平和购买能力不断提高,近几年虽然增加不少商业零售网点,但商场的人流仍很拥挤,场内空气污浊,加上场外马路交通繁忙,浮尘飘扬,各种病菌及大量粉尘亦被带入场内。造成场内空气混浊闷热,二氧化碳、飘尘、细菌单位含量升高。空气污染严 With the continuous development of the national economy, the people’s living standards and purchasing power are continuously improving. In recent years, although many commercial retail outlets have been added, the flow of people in shopping malls is still crowded, the air inside the stadium is dirty, and the traffic on the off-street roads is busy with flying dust. Various germs and a large amount of dust were also brought into the venue. The air in the stadium was cloudy and stuffy, and the content of carbon dioxide, fly ash, and bacteria increased. Strict air pollution