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City Air Guardian is a large public air purifier and public sculpture. It is able to detect air quality, provide warning signals, and filter harmful substances in the air.  

Dimension / 54000*3800*3400mm
Designer / Jia-Sheng Chen, Ching-Chun Wang
Year / 2015

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Air Pollution

According to a recent study by the “Nature” journal on September 16, 2015, in 2010, 3.3 million people worldwide died prematurely because of outdoor air pollution. If the situation continues to deteriorate, by 2050, the number of deaths due to outdoor air pollution will double every year, reaching 6.6 million.

1. Sulfur oxide (SOx)
2. Nitrogen oxides (NOx)
3. Carbon monoxide (CO)
4. Volatile organic compounds
5. Chlorofluorocarbons (CFCs)
6. PM10
7. PM2.5

The situation in Asia is the worst. The impact of air pollution from China will become more and more obvious to Taiwan. In recent years, 7 of the top 10 causes of death in Taiwan are closely related to air pollution.

Asian Air Pollution

The Main Air Pollutants 

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