{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Austin Baldwin", "hasEmail": "mailto:akbaldwi@usgs.gov"}, "description": "This dataset describes the quantity and morphology of floating microplastics in 29 Great Lakes tributaries in 6 states. Samples were collected in spring 2014 \u2013 spring 2015. Each tributary was sampled three to four times, capturing low-flow and runoff-event conditions. Sampling and analysis methods are described in the .xml metadata file. These data are interpreted in a journal article (cite journal article).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "http://dx.doi.org/10.5066/F7ZC80ZP", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5748a29be4b07e28b664dd62.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5748a29be4b07e28b664dd62", "keyword": ["Great Lakes", "Indiana", "Michigan", "Minnesota", "New York", "Ohio", "USGS:5748a29be4b07e28b664dd62", "Wisconsin", "microplastics", "nonpoint-source pollution", "river systems", "runoff", "surface water (non-marine)"], "modified": "2026-04-24T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-92.8235, 40.5969, -74.3225, 47.1446", "theme": ["geospatial"], "title": "Microplastics in 29 Great Lakes tributaries (2014-15)"}