Study On Atmosphere Environmental Capacity And The Total Quantity Control Of Valley City

The air pollutant total quantity control is assigns the region source of pollution emissions total quantity through the control, and optimizes assigns the source, guarantees the control area atmospheric environment quality to satisfy the corresponding environment target value. In the total quantity control, how carries on the assignment to the environmental capacity, then calculates various sources of pollution permission again the withdrawal, not only may cause the source of pollution control even more concrete application, moreover has guaranteed the control area environment quality standards. The question of air pollution emissions total quantity is the establishment precise pollutant proliferation model to the capacity inversion numerical simulation process.Our country is a mountainous country, many small and medium-sized cities distribute in the mountain valley region, in fluctuates and in the non-uniform terrain, The lower atmosphere the under pad surface characteristic intense influence, forms in the level and the plumb two directions the special wind field and the temperature field, the mountainous area rapids and the stability corresponding relationships and the plain is different, In addition the terrain limit and blocking, the pollutant transportation and the proliferation rule are much more complex than the plain, uses the general pattern to carry on the forecast to the mountain valley city air quality the result existence very big deviation. So, the question of control the atmospheric environment capacity and the total quantity for valley city has most important.This thesis is on the basis of grasping atmospheric environment objectives and index in Panzhihua, and pollute the investigating and analyzing carefully of meteorological phenomena through environmental overview , atmospheric pollution sources current situation to Panzhihua, appraise the current situation in environmental air quality to Panzhihua; Division and main air pollutant reduction quantity computation goes which through the atmospheric function, has carried on the reasonable plan to the panzhihua city atmospheric environment capacity and the total quantity control, proposed the air pollutant synthesis improvement basic thought, the measure and the support conditions.The author through the AERMOD smoke stream pattern, established the pollutant emissions total quantity and between the ambient air quality direct relations. To Panzhihua city city control area SO2, NO2, the PM10 total quantity control method has conducted the research. Calculates various sources of pollution emissions total quantity using the AERMOD model inversion type the control method, according to the environment quality simulation result analysis, has obtained under the premise which a series of environmental protection measure can implement, the Panzhihua city urban environment air quality hopefully achieves the country ambient air quality two levels of standards in 2010 the results.