Spread of the virus
- Virus particles in wastewater

Virus particles in wastewater

If you are infected with coronavirus, there are often virus particles in your stool. These end up in the sewer. Wastewater samples are collected at wastewater treatment plants and tested by the RIVM. This way we get information about the virus and can we follow the spread of the virus.

Last values obtained on Friday, 2 December. Is updated on Tuesday, Wednesday and Friday.

Source: RIVM

Average number of virus particles per 100,000 inhabitants

1,045
12 less than the previous value

This is the average of the last measurements of all wastewater treatment plants. This figure also takes account of how many inhabitants are served by a wastewater treatment plant.

Value of Tuesday, 29 November · Source: RIVM

Measurement of the average number of virus particles

Every day, the dashboard publishes the average number of virus particles per 100,000 inhabitants. To measure this number, we use the last measurement from each sewage treatment plant. Only if the last measurement is older than nine days, for example due to maintenance on the installation, is it not included in the average.

All sewage treatment plants collect samples on average four times a week, which are measured by RIVM.

Average number of virus particles over time (per 100,000 inhabitants)

This graph shows the average number of virus particles per 100,000 inhabitants over time.

The map shows "Show all"
The map shows "Last 7 days"
The map shows "Last 30 days"
The map shows "Last 3 months"
The map shows "Last 6 months"
The map shows "Last year"
Graph sewage installation over time. Use the keyboard to navigate through the time in the graph. With the left and right arrow keys you can move backwards and forwards in time. Use the left angle bracket < to go back and the right angle bracket > to go forward. With page-up and page-down you make bigger steps. Use the Home key and End key to go to the beginning and end of the timeline.

Source: RIVM

Average number of virus particles per 100,000 inhabitants

This map shows the average number of virus particles per 100,000 inhabitants.

Value from Monday, 21 November - Sunday, 27 November · Source: RIVM