{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Jared J. Trost", "hasEmail": "mailto:jtrost@usgs.gov"}, "description": "The USGS is conducting a long-term study of a terrestrial crude oil spill that resulted from a ruptured pipeline in 1979. Samples of oil bailed from wells were analyzed for polyaromatic hydrocarbons by a commercial lab. A total of 32 samples were analyzed in three batches. A sample that serves as a surrogate for the original spilled oil was submitted with each batch. For each oil sample, concentrations of a conservative compound can be compared to that found in the original spilled oil surrogate to obtain an estimate of the total oil mass that has been biodegraded.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9SPPFQY", "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.611feaeed34e40dd9c01e1d5.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_611feaeed34e40dd9c01e1d5", "keyword": ["Beltrami", "Minnesota", "USGS:611feaeed34e40dd9c01e1d5", "biodegradation", "biogeochemical cycling", "contaminant transport", "contamination and pollution", "dissolved organic compounds", "environment", "gas chromatography", "geochemistry", "industrial pollution", "mass spectroscopy", "organic pollutants", "petroleum"], "modified": "2025-07-24T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-94.9438, 47.4355, -94.7921, 47.5603", "theme": ["geospatial"], "title": "Polyaromatic Hydrocarbon Data for Oil Samples from the Bemidji Oil Spill Research Site, 1987-2020"}