{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["020:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Kenneth Klewin, U.S. Environmental Protection Agency, Region 5", "hasEmail": "mailto:Klewin.Kenneth@epa.gov"}, "dataQuality": false, "description": "The Great Lakes Environmental Database (GLENDA) houses environmental data collected by EPA Great Lakes National Program Office (GLNPO) programs that sample water, aquatic life, sediments, and air to assess the health of the Great Lakes ecosystem. GLENDA is available to the public on the EPA Central Data Exchange (CDX). A CDX account is required, which anyone may create. GLENDA offers \u201cReady to Download Data Files\u201d prepared by GLNPO or a \u201cQuery Data\u201d interface that allows users to select from predefined parameters to create a customized query. Query results can be downloaded in .csv format. GLNPO programs providing data in GLENDA include the Great Lakes Water Quality Survey and Great Lakes Biology Monitoring Program (1983-present, biannual monitoring throughout the Great Lakes to assess water quality, chemical, nutrient, and physical parameters, and biota such as plankton and benthic invertebrates),  the Great Lakes Fish Monitoring and Surveillance Program (1977-present, annual analysis of top predator fish composites to assess historic and emerging persistent, bioaccumulative, or toxic chemical contaminants), the Cooperative Science and Monitoring Initiative (2002-present, intensive water quality and biology sampling of one lake per year focusing on key challenges and data gaps), the Great Lakes Integrated Atmospheric Deposition Network (1990-present, monitoring Great Lakes air and precipitation  for persistent toxic chemicals), the Lake Michigan Mass Balance Study (1993-1996, analyzed the atmosphere, tributaries, sediments, water column, and biota of Lake Michigan for nutrients, atrazine, PCBs, trans-nonachlor, and mercury modelling), and the Great Lakes Legacy Act (1996-present, evaluations of sediment contamination in Areas of Concern). GLENDA is updated frequently with new data.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://cdx.epa.gov", "description": "GLENDA is accessed through the Central Data Exchange (CDX), an EPA system for electronic reporting and data sharing. A CDX account is required, which anyone may create. Select the \u201cGreat Lakes Environmental Database Query System\u201d program service when creating your account. When registering for a CDX account, be aware your personal information is kept internally but your organization name and address will be available in public databases.", "title": "Central Data Exchange (CDX)"}], "identifier": "C07E58C3-634A-4F65-98AC-8100A3E1455A", "issued": "2019-09-20", "keyword": ["Air", "Biology", "Chemicals", "Contaminant", "Ecological", "Ecology", "Ecosystem", "Environment", "Land, Modeling, Monitoring", "Natural Resources", "Pesticides", "Remediation", "Surface Water", "Toxics", "Water", "Biota", "Inland Waters", "Great Lakes", "Lake Ontario", "Lake Superior", "Lake Erie", "Lake Huron", "Lake Michigan", "United States", "water quality, sediment", "Great Lakes Legacy Act", "Lake Michigan Mass Balance", "water quality survey", "fish", "zooplankton", "phytoplankton", "mysis", "chlorophyll", "Great Lakes National Program Office", "GLNPO", "contaminated sediment", "Great Lakes Areas of Concern", "Great Lakes Biology Monitoring Program", "Great Lakes Water Quality Agreement", "open lake", "CSMI", "Area of Concern", "Great Lakes Fish Monitoring and Surveillance Program", "Great Lakes Integrated Atmospheric Deposition Network"], "landingPage": "https://www.epa.gov/great-lakes-monitoring", "language": ["en-US"], "license": "https://edg.epa.gov/EPA_Data_License.html", "modified": "2019-09-20", "programCode": ["020:072"], "publisher": {"@type": "org:Organization", "name": "U.S. Environmental Protection Agency, Region 5"}, "references": ["https://www.epa.gov/great-lakes-monitoring/water-chemistry", "https://www.epa.gov/great-lakes-legacy-act", "https://www.epa.gov/greatlakes/lake-michigan-mass-balance-results-and-publications"], "spatial": "-92.4942,40.0525,-75.3514,48.7248", "temporal": "1977/2019", "title": "Great Lakes Environmental Database (GLENDA)"}