Wet deposition of acidifying substances in different regions of China and the rest of East Asia: modeling with updated NAQPMS.
The traditional way to study Sources-Receptor Relationships (SRRs) of wet deposition is based on sensitivity simulation, which has weakness in dealing with the non-linear secondary formation pollutants (e.g. ozone and nitrate). An on-line source tracking method has been developed in the Nested Air Quality Prediction Modeling System (NAQPMS) coupled with cloud-process module for the first time. The new model can not only quantify the total volume of the sulfate, nitrate and ammonium wet deposition with more accuracy, but also trace these acidic species to their emitted precursors. Compared with previous studies, our result clearly shows: (1) East China and Central China, which are the two primary export regions, have 15-30% and 10% effect on wet deposition in other areas, respectively; (2) Besides the above two regions, the total acid deposition in Southwestern and Northeastern China have reached or exceeded the critical loads under their own environmental conditions.
['Ge|B Z|BZ|', 'Wang|Z F|ZF|', 'Xu|X B|XB|', 'Wu|J B|JB|', 'Yu|X L|XL|', 'Li|J|J|']
D000393:Air Pollutants D001272:Atmosphere D002681:China D004784:Environmental Monitoring D006863:Hydrogen-Ion Concentration D008956:Models, Chemical D009566:Nitrates D010126:Ozone D014887:Weather
Wet deposition Acidity substances Long-range transport Model simulation Source–receptor relationships