Xiang Lake Negative Oxygen Ions Make Double Growth
City Express 2019-01-17 14:12:01

The negative oxygen ions in the Xiang Lake area, Xiaoshan district, Hangzhou have been rising continuously and have reached a concentration of 1308/cm³, a double compared to August last year with 766/cm³. At present, the air freshness index of the Xiang Lake has reached the clean air level set by the World Health Organization.

The continuous improvement of air quality benefits from the establishment of the first fresh air station in Xiaoshan Yangdi which was put into use in August last year.

photo by courtesy of Xiaoshan Release