Catalan Surveillance Network of SARS-CoV-2 in Sewage

The Catalan Surveillance Network of SARS-CoV-2 in Sewage started in July 2020 to monitor 56 wastewater treatment plants (WWTPs) all over the country representing the sewage from the 80% of the total population. The sampling plan consist in a weekly collection of 24 hours-composed-flow proportional water sample from the entrance of each WWTPs. The raw sewage samples are send to references laboratories for analysis within 24h after collection. Samples are concentrated, the RNA extracted and finally amplyfied using two target genes (N1/N2 or N1/IP4). Here, we periodically release the dataset of the results obtained for each WWTP analysed with sampling date, gene copies per litre for each viral target, the daily flow from the WWTP, rain events registered and extra comments.加泰罗尼亚地区新冠病毒（SARS-CoV-2）污水监测网络于2020年7月启动，旨在对全国范围内的56座污水处理厂（Wastewater Treatment Plants，WWTPs）开展监测，这些设施覆盖了加泰罗尼亚地区80%的总人口所产生的污水。 采样方案为每周从每座污水处理厂的进水口采集24小时混合流量比例水样。 采集后的24小时内，原始污水样品将被送至参比实验室进行分析。 样品经浓缩、核糖核酸（RNA）提取后，最终通过两种靶标基因（N1/N2或N1/IP4）完成扩增。 本研究将定期发布各污水处理厂的检测结果数据集，包含采样日期、每类病毒靶标的每升基因拷贝数、污水处理厂日处理流量、记录的降雨事件以及额外备注信息。