Introduction
Recently, air pollution has become serious in China.The photo on the right is Beijing the capital of China. The
air is so dirty that you can see it with the naked eye. Similarly in Korea, air pollution is becoming increasingly serious. The National Institute for Environmental Sciences of Korea announced the result of a survey that 70% of PM2.5 is from overseas. The National Institute for Environmental Sciences of Korea announced the result of a survey that 70% of PM2.5 is from overseas. The National Institute for Environmental Sciences of Korea announce the result of a survey that 70% of PM2.5 is from overseas.This PM
2.5 was designated as a first class carcinogen by WHO in 2013. In 2018, it was announced that approximately 7 million people die annually due to air pollution. And now, this PM2.5 is coming to Japan. This is the most serious and most global problem.
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