本项目的目标是开发一种抽样方法，该方法允许以给定的精度，从分布式水质的角度，估算被视为均质的地理区域的平均铅浓度和不合格率。根据之前几项研究中的铅测量结果，建立了一个统计模型。包括桌子。

The objective of this project was to develop a samplingmethod that allows the estimation, with a given precision, of the average lead concentration and the non-conformity rate of a geographical area considered as homogeneous from the point of view of distributed water quality. From results of lead measurements taken during several prior studies, a statistical model has been created. Includes table.