Institute of Meteorology and Water Management, Podlesna 61, 01-673, Warsaw, Poland.
Environ Monit Assess. 1994 Oct;33(1):33-42. doi: 10.1007/BF00546659.
A new method of a water quality index has been proposed. The unit indices were determined from the values of individual parameters using continuous functions. The base for such functions were the four water quality classes used in Poland. The summarized WQI is the square root of the harmonic mean of squares of unit indices. Using this mean we have eliminated the use of weights of parameters. Parameters are divided into basic parameters (7) and other additional parameters (19). The additional parameter is considered only if its unit index is lower than WQI from basic parameters. For many measurements at one point the guaranteed WQI has been calculated. The points of WQI were connected and the curves of WQI along the river were obtained.A method of WQI calculating and preparation of WQI curves has been shown using as an example the Pilica river in Poland. The WQI was then calculated for 31 rivers in the Vistula river basin by measuring points.
提出了一种新的水质指数方法。单元指数是根据单个参数的值使用连续函数确定的。这些函数的基础是波兰使用的四种水质类别。综合水质指数是单元指数平方和的调和平均值的平方根。通过使用这种平均值，我们消除了对参数权重的使用。参数分为基本参数（7）和其他附加参数（19）。只有当附加参数的单位指数低于基本参数的 WQI 时，才会考虑附加参数。对于在一个点上的许多测量，已经计算出了保证的 WQI。将 WQI 点连接起来，就得到了河流沿线的 WQI 曲线。以波兰皮利察河为例，展示了 WQI 的计算方法和 WQI 曲线的编制方法。然后通过测量点计算了维斯瓦河流域的 31 条河流的 WQI。
