Atmosphere Environmental Capacity Study In Contitions Of Ligh Air And Calm

"95" periods our country environmental protection work overall implement the pollutant exhaust the total amount control, insuring the density of pollutant in the control district to attain the environment air quality target value with this. Therefore, the research of the atmosphere environment capacity is pay attention to by the all levels environmental protection section, studying a much the assurance atmosphere environment capacity one after another of method. But the majority of these methods is serviced for the strong wind condition of the atmosphere environment capacity how make sure, to the small breeze and the quiet breeze (u|- ≤1.0m/s) condition under of the atmosphere proliferation influence usually give the simplification consideration. The atmosphere environment capacity of the small and quiet breeze region are very difficulty estimated. The characteristics of atmosphere proliferation under the small and quiet breeze is given analytical research, the proliferation modes of the sink to deline,air pollutants and line pollute source,low and short timney's pollutants are all deduced in detail in this thesis.Moreover, the the smoke regiment track model is also studied. Think that small breeze and under quiet breeze condition of the atmosphere proliferation can't be described by the same of mode;The atmosphere proliferation of small and quiet breeze can also described by the smoke regiment track model;According to the atmosphere proliferation characteristics of the small breeze and the quiet breeze condition, the atmosphere proliferation parameter is related with the atmosphere stability and the proliferation time, an expression type of take each proliferation parameter is given;Small breeze with under quiet breeze condition of the smoke regiment the integral calculus mode can solve with the number integral calculus. At to small breeze with atmosphere under quiet breeze condition proliferation the regulation studies well hereafter, built up small breeze according to the principle of the atmosphere environment capacity with quiet under the breeze condition the atmosphere environment capacity of superior turn calculation model. Made use of science calculation language MATLAB to combine a solid example to carry on the calculate way realization to that model finally, give small breeze with calm downthe atmosphere environment capacity under the breeze condition is the superior to turn concrete calculate way of compute the model to carry out a step, make use of this model can beg small breeze with quiet under the breeze condition the atmosphere environment capacity. Therefore.which also provide the technique support for the metered calculation of atmosphere environment capacity in the breeze region.