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JINAN UNIVERSITY
Figure 2-1. Thermal inversion 逆温层现象
逆温层
段舜山 2021/1/31
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JINAN UNIVERSITY
Figure 2-2. Mexico City, blanketed with smog
被雾霾笼罩的墨西哥城
Today, most industrial smog forms in cities of China, India, and other developing countries, as well as in Hungary, Poland, and other coal-dependent countries of eastern Europe.
Chlorofluorocarbons (氯氟烃CFCs) are the major culprits in ozone reduction.
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JINAN UNIVERSITY
Ozone reduction 臭氧层减少
CFCs have been widely used as propellants in aerosol spray cans(喷雾器), as coolants in refrigerators and air conditioners, and in industrial solvents and plastic foams(塑料发泡剂).
They include carbon dioxide, nitrogen oxides, sulfur oxides, and chlorofluorocarbons (CFCs).