China-Singapore Tianjin Eco-City Builds Urban “Natural Oxygen Bar”
China-Singapore Tianjin Eco-City Administrative Committee According to the latest release from the Administrative Committee of the China-Singapore Tianjin Eco-City, the concentration of negative oxygen ions monitored at Yongdingzhou Park within the eco-city reached 7,100 ions per cubic centimeter in May 2026, hitting a record high for the same period in history. Known as “vitamins in […]
