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随着现代工业的发展、城市扩大、人口密度增加、煤炭和石油燃料使用量的迅猛增长,快速城市化和工业化过程中,多种大气污染问题在城市里越来越突出:在以二氧化硫、氮氧化物、可吸入颗粒物为特征的传统煤烟型污染尚未解决的同时,臭氧和颗粒物细粒子等二次污染问题又接踵而至,且污染态势更加严峻、危害更大。这种复合型大气污染给人们的健康带来了重重威胁。使我们目前生存的环境中含有越来越多的致癌物质,增加了癌症的发病率。
With the development of modern industry, the expansion of cities, the increase of population density, the rapid growth of the use of coal and petroleum fuels, the rapid urbanization and industrialization process, a variety of air pollution problems are becoming more and more prominent in the cities. With sulfur dioxide, nitrogen While the traditional soot-type pollution featuring oxides and respirable particulates has not yet been solved, the secondary pollution problems such as ozone and particulate matter follow one after another, and the pollution situation is more severe and more harmful. This compound air pollution poses a great threat to people's health. The environment that we are currently living in contains more and more carcinogens, increasing the incidence of cancer.