Peru Watershed Data for the Arequipa Region

Surface water quality has been monitored in southern Peru for over a century, but the information is only available from various organizations with considerable delay after official requests. A substantial portion of the data have not been quality assured and were available in difficult-to-access formats such as scanned PDF documents, which made it difficult to evaluate water quality trends. In this project, we gathered all available surface water quality information from five watersheds in the Arequipa Region of southern Peru: Camaná, Chili, Ocoña, Tambo, and Yauca. The effort required entry of more than 130 thousand records of general chemistry, nutrients, and parameters, metals, organic compounds, and biological taxa from 247 stations. The water quality records span the years 2010 to 2021. This paper describes how the water quality data were assimilated and provides one master Excel database so that the surface water quality data can be used for research and decision making

秘鲁南部地区的地表水水质监测工作已开展逾百年，但相关水质信息仅能通过各机构在提交正式申请后延迟较长时间获取。其中相当一部分数据未经过质量管控，且仅能以扫描版PDF等难以直接调用的格式存储，这使得水质变化趋势的评估工作难以推进。本项目中，我们收集了秘鲁南部阿雷基帕地区五个流域（卡马纳河、奇利河、奥科尼亚河、坦博河与亚乌卡河）的全部可获取地表水水质数据。本次数据整理工作共录入了来自247个监测站点的13万余条记录，涵盖常规化学指标、营养盐及各类参数、金属污染物、有机化合物与生物类群等类别。本次收录的水质数据时间跨度为2010年至2021年。本文详述了该地表水水质数据的整合流程，并提供了整合后的主Excel数据库，以期为相关科研与决策工作提供数据支撑。