利用单位源强浓度贡献确定排放限值

针对总量控制意义下的大气污染物排放限值计算中存在的不足，从常规的大气扩散模式出发，利用大气污染物浓度与源强成正比这一基本关系，推导定义单位源强浓度贡献，相对环境容量及相对环境余量，进而利用控制理论基本原理，推导出一种新的削减控制量计算方法，该方法可在没有足够多监测点情况下，较准确合理地确定各污染源允许排放量，制定总量控制方案，通过湖北某地一新建水泥厂削减控制方案的计算实例，说明该方法简单，合理，实用。

A new method to deuce the safe limits for pollution emission by calculating the concentration of per unit intensity of pollutant

To counter the inadequacy exisity in calculating the safe limits of atmospheric pollutant under total control, this essay, beginning with normal atmospheric diffusion mode, takes advantage of the direct proportion relation between the concentration and intensity of pollutant to educe and define the contribution from the concentration of pre unit intensity of pollutant, relative environmental capacity, as well as relative residual environmental capacity. Meanwhile, by making use of the essential principle of control theory, a new method is educed for reducing control capacity. Such method can reationally determine the total emission and make total control progiammer in the case of without enough supervising stations. Its proved to be simple, rational and practical by a living example of the calculation of the reducing control project in a newly-building cement factory in Hubei province.