Early indicators
- Virus particles in wastewater

Virus particles in wastewater

If you are infected with coronavirus, there are likely to be virus particles in your stool. These are flushed down the toilet and end up in wastewater. By testing samples of wastewater collected at wastewater treatment plants, we can get information about how widespread the virus is in the community.

Last values obtained on Tuesday, 21 September. Is updated on a daily basis.

Source: RIVM

Average number of virus particles per 100,000 inhabitants

113
40 less the previous value
x100 billion

The calculated average is based on all the wastewater measurements collected in one week. This figure also takes account of how many inhabitants are served by a wastewater treatment plant.

Value from Monday, 13 September - Sunday, 19 September · Source: RIVM

Number of measurements per week

623

294 of the 315 sampling locations reported at least one measurement in the given week.

Sampling locations can report multiple measurements per week. The number of measurements used per location per week can differ because not all measurements are successful.

Value from Monday, 13 September - Sunday, 19 September · Source: 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 colour of the area provides information about the severity of the situation. If the area is light blue, the situation is less serious than if the area is darker.

x100 billion
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. 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.
7 Sept 202015 Mar 202119 Sept 20210200400600800
Weekly average:
  • 0 to 10
  • 10 to 50
  • 50 to 100
  • 100+

Source: RIVM

Average number of virus particles per 100,000 inhabitants

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

Legend

  • 0
  • 50
  • 500
  • 1000
x100 billion

Value from Monday, 13 September - Sunday, 19 September · Source: RIVM