{
  "@type": "dcat:Dataset",
  "accessLevel": "public",
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "Jonathan Levy",
    "hasEmail": "mailto:no-reply@data.cityofchicago.org"
  },
  "description": "As described in https://data.cityofchicago.org/stories/s/sihu-d8va, the function of this dataset was replaced by https://data.cityofchicago.org/d/4tzt-ir6h. This dataset is historical-only.\n\nConcentrations of the SARS-CoV-2 virus (the COVID-19 virus) gene in the Chicago sewer system, as measured at eight sewershed sites. These sites represent catchment areas that describe wastewater from 319,700 Chicagoans as of January 2023.\n\nBecause SARS-CoV-2 is shed in human feces, this method can be used to estimate changes in COVID-19 at different times and locations across Chicago. While the data in this dataset do not indicate how many people were infected with SARS-CoV-2, differences in the the normalized_n1 indicate whether the proportion of individuals at the site who are shedding that virus has changed.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "describedBy": "https://data.cityofchicago.org/api/views/urdi-w8wq/columns.json",
      "describedByType": "application/json",
      "downloadURL": "https://data.cityofchicago.org/api/v3/views/urdi-w8wq/query.json?accessType=DOWNLOAD",
      "mediaType": "application/json"
    },
    {
      "@type": "dcat:Distribution",
      "describedBy": "https://data.cityofchicago.org/api/views/urdi-w8wq/columns.xml",
      "describedByType": "application/xml",
      "downloadURL": "https://data.cityofchicago.org/api/v3/views/urdi-w8wq/query.xml?accessType=DOWNLOAD",
      "mediaType": "application/xml"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://data.cityofchicago.org/api/v3/views/urdi-w8wq/export.csv?accessType=DOWNLOAD",
      "mediaType": "text/csv"
    }
  ],
  "identifier": "https://data.cityofchicago.org/api/views/urdi-w8wq",
  "issued": "2023-01-30",
  "keyword": [
    "covid-19",
    "health",
    "historical",
    "public health",
    "sanitation",
    "testing"
  ],
  "landingPage": "https://data.cityofchicago.org/d/urdi-w8wq",
  "modified": "2026-08-31",
  "publisher": {
    "@type": "org:Organization",
    "name": "data.cityofchicago.org"
  },
  "theme": [
    "Health & Human Services"
  ],
  "title": "COVID-19 Wastewater Detection - Historical"
}