China switched to higher grades of gasoline Jan. 1 as the new National IV standards came into effect, China News Service reported Wednesday. The upgrade will raise prices by around 0.21 yuan per liter at the pump, the National Development and Reform Commission said, but it will cut PM2.5 particles by around 20 to 30 percent. The fuel’s sulphur content will also drop from 150 parts per million to 50 ppm. As of December 30, 68 percent of 31 provinces and cities monitored had made the changeover, and nine cities — Beijing, Shanghai, Suzhou, Nanjing, Nantong, Wuxi, Taizhou, Changzhou and Yangzhou — had already upgraded to National V standards, the report said.
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