{"@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/export.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": "2026-03-25", "publisher": {"@type": "org:Organization", "name": "data.cityofchicago.org"}, "theme": ["Health & Human Services"], "title": "COVID-19 Wastewater Detection - Historical"}