{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Danielle M Cleveland", "hasEmail": "mailto:dcleveland@usgs.gov"}, "description": "Historical lead mining in Madison County, Missouri, USA has left a legacy of metals contamination. Laboratory studies were conducted to examine the effect of water hardness and age of crayfish on the toxicity of environment-based metals mixture. Additionally, the effects of chronic exposure to a metals mixture to egg development in adult crayfish were assessed.  These data are comprised of measurements of elements (i.e., cobalt, nickel, copper, zinc, cadmium, lead), major anions (e.g., chloride, sulfate), dissolved organic carbon, and major cations (e.g, sodium, calcium, magnesium) in water samples collected during laboratory-based diluter exposure studies.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P93YTJ3K", "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.660ab998d34e4df16bd589a5.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_660ab998d34e4df16bd589a5", "keyword": ["Mining and Mineral Extraction", "Missouri", "U.S. Geological Survey, Columbia Environmental Research Center", "USGS:660ab998d34e4df16bd589a5", "cadmium (Cd)", "cobalt (Co)", "copper (Cu)", "crayfish", "dissolved metals", "dissolved organic carbon", "environment", "exposure", "lead (Pb)", "metals", "mine sites", "mining and quarrying", "mining hazards", "nickel (Ni)", "toxicity", "water hardness", "zinc (Zn)"], "modified": "2024-09-05T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-92.284362, 38.911055, -92.274492, 38.912541", "theme": ["geospatial"], "title": "Chemistry data for the exposure waters collected during the Madison County crayfish laboratory studies."}