水质参数主要有几类

2025-04-07 13:08:30
推荐回答(1个)
回答1:

水质评价有很多方法,如最差因子判别法,有机污染综合指数评价法,主分量分析法,模糊综合评价法等等。
1、最差因子判别法:根据几种评价因子中污染最为严重的那个因子所属的水质类别来确定水体的总体水质类别。
2、有机污染综合指数评价法:主要是针对水体有机污染的一种综合评价方法,它根据溶解氧、氨氮、高锰酸盐指数、五日生化需氧量这四项指标的等标污染指数的和来判断水质的综合指标。
3、主分量分析法:首先用分指数公式将各评价因子的实测数据标准化,然后对标准化数据矩阵进行主分量分析,计算其特征值和特征向量,并确定公共因子数目和因子荷载,最后将这些因子线性综合成一个度量环境质量的综合指标。
4、模糊理论综合评价法:水质的好坏和评定等级的划分,其界限是模糊的,没有一个确定的等级边界,因此用基于模糊理论的贴近度来进行综合评价,能够得到接近客观实际的结果。

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