COVID-19 National SARS-CoV-2 waste water surveillance Safety region values by date

Description

This file contains per Safety Region (VR), per day, the average number of SARS-CoV-2 virus particles per 100.000 inhabitants, as calculated from measurements of the number of virus particles per sewage treatment plant (RWZI). The file is structured as follows: For each date since 2020-09-07, the number of virus particles in sewage water per 100.000 inhabitants has been calculated per VR. This number is a weighted average of the RWZIs where the region in question is (partly) served. For each date, per VR, the most recent measurement of all RWZIs will be weighted according to the number of residents in the VR using the relevant RWZI, provided that the most recent measurement is not older than eight days. These values are reputed about the VR, and divided by the number of observed inhabitants (i.e., the number of inhabitants in a VR connected to RWZIs that have a measurement less than eight days old). This results in a weighted average for the VR expressed per capita. Multiplying by 100.000 gives the average number of virus particles per VR, per date, per 100.000 inhabitant equivalents. If none of the RWZIs are available within a VR measurement that is more recent than 8 days, the record is “NA”. The file contains per VR all days from 2020-09-07 to the most recent date for which a value can be calculated. As a result, the most recent date may vary by region. The figures were calculated on the basis of the classification of VR as it applied on the date of the measurement. Any changes, for example as a result of municipal reclassifications, will be applied on the date on which it takes place administratively. The information on population numbers per RWZI and the share belonging to the different VR can be found in a turnover table provided by the Central Bureau of Statistics (CBS). The 2020-2021 version: https://www.cbs.nl/nl-nl/maatwerk/2021/06/inwoners-per-rioolwaterzuiveringsinstallatie-1-1-2021 The 2022 version: https://www.cbs.nl/nl-nl/maatwerk/2022/42/inwoners-per-rioolwaterzuiveringsinstallatie-1-1-2022 Which municipalities fall under a VR can be found in the overview of the area classifications of the CBS (https://www.cbs.nl/nl-nl/dossier/nederland-regionaal/geografische-data/cbs-gebiedsindelingen). All measurements of individual RWZIs on which the VR digit is based can be found in the open data set at RWZI record level. (https://data.rivm.nl/meta/srv/dut/catalog.search#/metadata/a2960b68-9d3f-4dc3-9485-600570cd52b9) Description of variables Version: Version number of the dataset. If the content of the dataset is structurally changed (i.e. not the daily update or a correction at record level), the version number will be changed (+ 1) and also the corresponding metadata in RIVMdata (data.rivm.nl). Date_of_report: Date on which the file was created (format: YYYY-mm-dd). Date_measurement: Date to which the calculation of the average number of virus particles per 100.000 inhabitants (format: YYYY-mm-dd). Region_code:The CBS code of VR. Region_name:Name of VR. RNA_flow_per_100000: The calculated number of SARS-CoV-2 RNA particles measured in the sewage water, based on a weighted average of measurements at RWZIs operating the respective VR, per 100.000 inhabitants. Because not all measurements are available at the same time, the most recently reported values are subject to change. This may result in differences in the date of publication of the data. It is also possible that earlier dates are corrected as a result of new laboratory results or corrections in source stocks of the Water Boards. This file is always based on the most up-to-date data.

Resources

Name Format Description Link
0 https://data.rivm.nl/data/covid-19/COVID-19_rioolwaterdata_veiligheidsregio.csv

Tags

  • coronavirus
  • sars-cov-2
  • rioolwater
  • infectieziekten
  • gezondheid
  • covid-19
  • afvalwater

Topics

  • HEAL

Categories