Visualizing invisible NOx emissions and remodeling policy requirements within bidirectional supply-demand control

Substantial anthropogenic nitrogen oxides (NOx) emissions have attracted public concern because of its negative impacts on human health and eco-environment and become one of the major air pollutants in China during 14th National Five-Year Plan (FYP). Existing studies have made great contributions to the end-of-pipe NOx treatment but the evaluations of “invisible” emissions due to primary supply and final demand embedded within the whole supply …