Clean Tech Environmental Protection Policies Air Pollution Prevention and Control Action Plan, Sept 2013 "By 2017, PM10 in cities at prefecture level and above must fall by 10% from 2012 levels; PM 2.5 in Beijing- Tianjin-Hebei, Yangtze River delta, and Pearl River delta must fall by 25%, 20% and 15% respectively " Water Pollution Prevention and Control Action Plan, April 2015 "By 2020, water quality in seven key areas must reach national standard Level III; black and odorous water to be reduced to less than 10%; and drinking water should reach Level III" Soil Pollution Prevention and Control Action Plan, June 2016 "By 2020, the safe utilization rate of contaminated arable land should reach about 90%, while the safe utilization rate of the polluted plots should exceed 90%. By 2030, the safe utilization rates of contaminated arable land and polluted plots should both exceed 95% respectively"