Traditional Culture Encyclopedia - Weather inquiry - Negative oxygen ion content grade in Wuzhishan, Hainan
Negative oxygen ion content grade in Wuzhishan, Hainan
The content of negative oxygen ions in Wuzhishan, Hainan ranks in the top ten. According to the comprehensive index evaluation of urban ambient air quality, the top ranked cities and counties in Hainan Province 18 are Ledong County, Wuzhishan City, Baoting County, Wanning County, Changjiang County, Qiongzhong County, Qionghai County, Haikou City and Baisha County. Negative oxygen ion is a single gas molecule and hydrogen ion group with negative charge, which plays a regulatory role in air purification and urban microclimate, and its concentration level is one of the indicators of urban air quality evaluation.
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