适用于多指标的空气质量评价对数型幂函数指数公式

A universal multi-index air quality assessment formula by using a power function in the form of logarithm

为建立科学合理、普适通用且计算简便的空气环境质量评价模型,在适当设定空气污染指标"参照值"和规范变换式的基础上,提出了对通常采用的7项空气污染指标的"规范值"都适用的空气质量评价指数公式。采用智能解域搜索算法优化公式中的参数,得到优化后对多指标皆适用的空气质量评价的对数型幂函数指数公式。将该公式用于多个地区的空气环境质量评价,其评价结果与其他多种评价方法一致。研究表明,该对数型幂函数指数公式能为空气环境质量评价提供一种简便、实用的新方法。

This paper intends to present its author＇ s development of an index formula for assessing the environmental quality, known as the universal multi-index air quality assessment formula by means of the power function in the form of logarithm. The proposed formula has been established on the basis of the normalized values of multi-indexes from a corresponding sot of reference indexes for air quality assessment in the form of logarithmic power function. So far as we can see, the proposed formula enjoys the priority of being scientific and reasonable, simple and intuitive, universal and common, as well as convenient in calculation and application. At the same time, the parameters involved in the formula prove to be optimized by using search solution space with intelligence （ISSS）. The results of our trial application show that the optimized universal index formula is fit for 7 index- es for air quality assessment. It can also be applied to the Practical air quality assessments for some quite different regions. The assessment results proved to be in full conformity with those obtained from other numerous assessment methods, such as improved attribute recognition model （IARM）, artificial fish swarm （AFS） and feedback mutation genetic algorithm （FMGA）, and also in correspondence with the actual conditions. Thus, it can be concluded that this formula has so far been one of the up-to-date most convenient and practical formulae in the methods of air quality assessment.