Danish Water Supply Areas and their links to water production facilities: an open-access data set

This data set establishes the missing link between drinking-water quality monitoring data at the water production facility level in the Danish national geodatabase Jupiter and supply areas. Water Supply Areas (WSAs) were collected at municipality level, digitised and linked to the waterworks they are supplied by. Infrastructural changes between 1978 and 2019 were taken into account by allowing WSA polygons to change over time. The number of active WSAs decreased from 3172 in 1978 to 2602 in 2019. The data set consists of longitudinal WSA polygons and a table linking WSAs to the water production facility identification in the Jupiter database, allowing the estimation of cur-rent and historical drinking-water quality across Denmark. In combination with the Danish Address Register and the Civil Registration System, this data set allows exposure assessments of drink-ing-water quality at high spatiotemporal resolution for the entire Danish population. Therefore, this data set is an essential part of studying health effects of drinking-water quality in epidemiological research in Denmark.

本数据集构筑了丹麦国家地理数据库Jupiter中水生产设施水质监测数据与供水区域之间的缺失环节。供水区域（WSAs）在市镇层级收集，进行数字化处理并与所供水的自来水厂建立联系。通过允许WSA多边形随时间变化，考虑了1978年至2019年间的基础设施变更。活跃的WSA数量从1978年的3172个降至2019年的2602个。数据集包括纵向WSA多边形以及一个表格，将WSAs与Jupiter数据库中的水生产设施识别码相链接，从而实现丹麦全国范围内当前和历史饮用水质量的估计。结合丹麦地址注册簿和民事登记系统，本数据集允许对整个丹麦人口进行高时空分辨率的饮用水质量暴露评估。因此，该数据集是丹麦流行病学研究中探讨饮用水质量对健康影响不可或缺的一部分。