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2012年以来,我国各大城市发生严重的雾霾现象,空气的污染给人们的健康带来了极大的威胁。2015年北京PM2.5的峰值一度高达902,由于严重的雾霾导致大众心脑血管疾病高发,肺癌发生率相比十年前上升80%。雾霾不仅对人类健康产生威胁,连经济发展也不能幸免于难,由于雾霾导致交通运输的滞缓、电力设备的跳闸、农作物发育不良等等都对我国经济发展产生了严重的阻碍。究其原因主要是在冬季燃煤采暖、机动车和大型工厂废气排放、热岛效应等等。
Since 2012, serious smog has taken place in major cities in China, and air pollution has posed a great threat to people’s health. The peak of PM2.5 in Beijing was as high as 902 in 2015, with a high prevalence of cardiovascular and cerebrovascular diseases due to severe haze. The incidence of lung cancer increased by 80% compared with that of a decade ago. Haze not only poses a threat to human health, but also its economic development can not be spared. Haze has led to stagnant transportation, tripping of power equipment, poor crop development and so on, which have seriously hindered the economic development of our country. The main reason is the coal-fired heating in winter, motor vehicles and large-scale factory emissions, heat island effect and so on.