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註釋Imperfect air in an imperfect world, its poison is closely related to our daily health. More than 90% of the world's people are breathing air pollution, you and I can't escape. Not only does air pollution cause lung disease and allergies, it can also lead to heart disease, cancer, stroke and dementia. So, where does air pollution come from? In fact, the source is beyond your imagination. Since humans started to use fire, air pollution has become an eternal proposition. From volcanoes, wildfires, and deserts in nature, to human chimneys, cars, and various household cleaners, air pollution is everywhere. types of air pollutants