{"@context":"https://schema.org","@type":"Dataset","@id":"https://asbestosatlas.org/shipyard/oregon-shipbuilding#provenance","name":"Oregon Shipbuilding Corporation — Evidence Provenance Record","description":"Machine-readable provenance for 1 evidence record documenting historical asbestos exposure at Oregon Shipbuilding Corporation in Portland, OR.","url":"https://asbestosatlas.org/shipyard/oregon-shipbuilding/provenance.json","mainEntityOfPage":{"@type":"WebPage","@id":"https://asbestosatlas.org/shipyard/oregon-shipbuilding#webpage"},"isPartOf":{"@type":"Dataset","@id":"https://asbestosatlas.org/data#dataset","name":"U.S. Shipyard Asbestos Exposure Dataset","identifier":"https://doi.org/10.5281/zenodo.22313866","url":"https://asbestosatlas.org/data","version":"1.6"},"version":"1.6","license":"https://creativecommons.org/licenses/by/4.0/","spatialCoverage":{"@type":"Place","@id":"https://asbestosatlas.org/shipyard/oregon-shipbuilding#place","name":"Oregon Shipbuilding Corporation"},"variableMeasured":[{"@type":"PropertyValue","propertyID":"Evidence records","value":1},{"@type":"PropertyValue","propertyID":"Evidence tier","value":"Tier 3"},{"@type":"PropertyValue","propertyID":"Direct source URLs","value":1},{"@type":"PropertyValue","propertyID":"Documented asbestos products","value":0}],"hasPart":[{"@type":"CreativeWork","@id":"https://asbestosatlas.org/shipyard/oregon-shipbuilding/provenance.json#ev-oregon-shipbuilding-01","name":"ev-oregon-shipbuilding-01: environmental record","description":"Asbestos-containing material documented in shipyard upland and overwater areas including paint shed, blast booth, drydocks, and berths in EPA Portland Harbor RI/FS","identifier":{"@type":"PropertyValue","propertyID":"Asbestos Atlas Evidence ID","value":"ev-oregon-shipbuilding-01"},"additionalProperty":[{"@type":"PropertyValue","propertyID":"Evidence tier","value":"Tier 3"},{"@type":"PropertyValue","propertyID":"Verification status","value":"verification_needed"}],"url":"https://semspub.epa.gov/work/10/100004575.pdf","citation":"EPA Portland Harbor Superfund RI/FS, EPA Document 100004575","temporalCoverage":"historical","disambiguatingDescription":"Environmental ACM record only; no commercial insulation brand table retrieved. Treat as environmental_record, not product brand evidence."}],"distribution":{"@type":"DataDownload","encodingFormat":"application/ld+json","contentUrl":"https://asbestosatlas.org/shipyard/oregon-shipbuilding/provenance.json"},"citation":"Asbestos Atlas. (2026). Oregon Shipbuilding Corporation — Evidence Provenance Record. U.S. Shipyard Asbestos Exposure Dataset v1.6. https://doi.org/10.5281/zenodo.22313866","isBasedOn":{"@type":"CreativeWork","name":"Asbestos Atlas Methodology and Source Criteria","url":"https://asbestosatlas.org/methodology"}}