{"hq_id":"hq-c-mix-000038","name":"Refractory Ceramic Fibers (RCF)","context":"human_adult","timestamp":"2026-10-27T21:22:38.776Z","derived_by":{"label":"ALETHEIA-derived","engine":{"commit":"a1c6e861599cc34c5db0318ea1a7ac13a327e074","commit_source":"vercel_env","tree_clean":null},"params":{"sha256":"88ae43137e58ed0cd65588409efefee0d90253da01ef4459bf9ee25f888ec9a0","files":["axes.json","context-specificity.json","regulatory-mappings.json","synthesis-params.json","thresholds.json"]},"clock":{"year":2026},"inputs":[{"id":"hq-c-mix-000038","sha256":"17d665693c32a144c3cc2ffb99d331f951937c5bb18fc31368e977f2ee5b44d4"}]},"risk_level":"moderate_to_high","risk_profile":{"magnitude":{"mean":0.430921,"weightedMean":0.430921,"std_dev":0.074766,"confidence_interval_95":[0.35,0.5],"source_positions":[{"source":"IARC","year":2002,"value":0.5,"weight":0.41},{"source":"HQ_DIRECT","year":2026,"value":0.35,"weight":0.35}]},"confidence":{"mean":0.672632,"weightedMean":0.672632,"std_dev":0.159501,"confidence_interval_95":[0.5,0.82],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.5,"weight":0.35},{"source":"IARC","year":2002,"value":0.82,"weight":0.41}]},"recency":{"mean":0.730263,"weightedMean":0.730263,"std_dev":0.24922,"confidence_interval_95":[0.5,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":1,"weight":0.35},{"source":"IARC","year":2002,"value":0.5,"weight":0.41}]},"methodology":{"mean":0.861842,"weightedMean":0.861842,"std_dev":0.149532,"confidence_interval_95":[0.7,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.7,"weight":0.35},{"source":"IARC","year":2002,"value":1,"weight":0.41}]},"specificity":{"mean":0.828289,"weightedMean":0.828289,"std_dev":0.084735,"confidence_interval_95":[0.75,0.92],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.92,"weight":0.35},{"source":"IARC","year":2002,"value":0.75,"weight":0.41}]},"consensus":{"exists":false,"strength":0.50156,"disagreement_magnitude":0.314261,"warning":"limited_synthesis"}},"interpretation":{"summary":"Regulatory agencies show substantial disagreement. IARC classifies as higher risk (50th percentile), while HQ_DIRECT concludes lower risk (35th percentile).","confidence_note":"Moderate-quality evidence base.","context_note":null,"warning":"limited_synthesis"},"sources":[{"id":"iarc_rcf_2002","type":"regulatory","title":"IARC Monographs Volume 43: Man-made Mineral Fibres and Radon","year":2002,"url":"http://publications.iarc.fr/61"},{"id":"osha_rcf_hazardous_substances","type":"regulatory","title":"OSHA Hazardous Substances List + 29 CFR 1910.1200 (HCS 2012) — Refractory Ceramic Fibers (aluminosilicate wool) GHS-classified Carc. 1B; ACGIH-driven 0.2 fiber/cc TLV adoption framework","year":2020},{"id":"niosh_rcf_alert_1990","type":"regulatory","title":"NIOSH Hazard Review + Criteria Document — Occupational Exposure to Refractory Ceramic Fibers (REL 0.2 fibers/cm³ TWA; furnace + foundry + steel + petrochemical cohort framework)","year":2006},{"id":"lemasters_rcf_pleural_plaques_1994","type":"study","title":"Lemasters GK, Lockey JE, Levin LS et al. — Industry-wide pleural-plaque mortality study among RCF-manufacturing-cohort workers (canonical IARC-81-driving cohort framework)","year":1994},{"id":"r60-2026-09-26-d867-eurlex-cellar-02004L0037-20240408","type":"regulatory","title":"Consolidated TEXT: 32004L0037 — EN — 08.04.2024","url":"https://publications.europa.eu/resource/celex/02004L0037-20240408"},{"id":"r60-2026-09-24-d869-iarc-monographs-available","type":"regulatory","title":"IARC Monographs — Monographs available (index)","year":2026,"url":"https://monographs.iarc.who.int/monographs-available/"},{"id":"r60-2026-09-30-d918-oehha-prop65-list-csv-own-url","type":"regulatory","title":"OEHHA Proposition 65 List of Carcinogens or Reproductive Toxicants (CSV, list date 31-Jul-26)","url":"https://oehha.ca.gov/sites/default/files/media/2025-01/p65chemicalslist.csv"}],"sources_scope":"record","derived_markers":[],"warnings":["limited_synthesis"],"meta":{"synthesis_version":"1.1.0","config_version":"1.1.0","n_sources":2,"db_version":15},"schema":"synthesis","_notice":"ALETHEIA output is reference data, not professional advice. Not a substitute for primary agency sources or qualified professionals. See https://aletheia.holisticquality.io/disclaimer.","_disclaimer_url":"https://aletheia.holisticquality.io/disclaimer","available_contexts":["human_adult","human_child","aquatic_life","human_teen","human_elderly","human_infant","human_pregnant","exposure_dermal","exposure_inhalation","exposure_ingestion","exposure_ocular","occupational_exposure"]}