China is upping its national air quality standards starting in March for the first time since 2012. The PM 2.5 targets remain far looser than the WHO's but its another step toward cleaner skies:
www.bloomberg.com/news/article...
China is planning its first major tightening of national air quality standards since 2012, as it seeks to extend a largely successful anti-pollution campaign that’s reshaped parts of its economy.
