SARS-CoV-2 Wastewater Concentration History

NWSS Public SARS-CoV-2 Concentration in Wastewater Data provides a complete time history of viral concentrations for each sampling location. The dataset was published by data.cdc.gov and was archived as of September 12, 2025, with no new data to be added.

Use Cases

• Analyze temporal trends in SARS-CoV-2 concentration using the `date` and `pcr_conc_lin` columns.
• Compare viral load trends across different sampling locations identified by the `key_plot_id`.
• Assess the impact of data normalization methods by examining the `normalization` column across records.
• Correlate wastewater concentration (`pcr_conc_lin`) with clinical case data for a specific `key_plot_id`.

Strengths

• Provides a complete time history for each sampling location.
• Data is archived and stable for historical analysis.

Limitations

• Dataset is archived as of September 2025, containing no recent data.
• Specific sample size, geographic coverage, and temporal range are unknown.

Provenance

Source

data.cdc.gov

Collection Method

Wastewater sampling and PCR concentration analysis.

Freshness

Archived; no new data will be added after September 12, 2025.