{"hq_id":"hq-c-org-000408","name":"Hexachloroethane","context":"human_adult","timestamp":"2026-10-27T19:04:12.352Z","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-org-000408","sha256":"8d50130fea7f71e06fb6c066d41f6ca9c70b705d6f906c56ee06e8a5d7ac8954"}]},"risk_level":"high","risk_profile":{"magnitude":{"mean":0.604759,"weightedMean":0.604759,"std_dev":0.164488,"confidence_interval_95":[0.35,0.8],"source_positions":[{"source":"EPA CTX / CalEPA","year":2021,"value":0.8,"weight":0.30176},{"source":"US EPA","year":1991,"value":0.75,"weight":0.41},{"source":"EPA CTX / NTP RoC","year":2021,"value":0.65,"weight":0.30176},{"source":"IARC","year":1999,"value":0.5,"weight":0.41},{"source":"HQ_DIRECT","year":2026,"value":0.35,"weight":0.35}]},"confidence":{"mean":0.756849,"weightedMean":0.756849,"std_dev":0.127359,"confidence_interval_95":[0.5,0.82],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.5,"weight":0.35},{"source":"IARC","year":1999,"value":0.82,"weight":0.41},{"source":"US EPA","year":1991,"value":0.82,"weight":0.41},{"source":"EPA CTX / NTP RoC","year":2021,"value":0.82,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":0.82,"weight":0.30176}]},"recency":{"mean":0.553755,"weightedMean":0.553755,"std_dev":0.228859,"confidence_interval_95":[0.368,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":1,"weight":0.35},{"source":"IARC","year":1999,"value":0.5,"weight":0.41},{"source":"US EPA","year":1991,"value":0.5,"weight":0.41},{"source":"EPA CTX / NTP RoC","year":2021,"value":0.368,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":0.368,"weight":0.30176}]},"methodology":{"mean":0.940796,"weightedMean":0.940796,"std_dev":0.119399,"confidence_interval_95":[0.7,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.7,"weight":0.35},{"source":"IARC","year":1999,"value":1,"weight":0.41},{"source":"US EPA","year":1991,"value":1,"weight":0.41},{"source":"EPA CTX / NTP RoC","year":2021,"value":1,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":1,"weight":0.30176}]},"specificity":{"mean":0.783549,"weightedMean":0.783549,"std_dev":0.067659,"confidence_interval_95":[0.75,0.92],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.92,"weight":0.35},{"source":"IARC","year":1999,"value":0.75,"weight":0.41},{"source":"US EPA","year":1991,"value":0.75,"weight":0.41},{"source":"EPA CTX / NTP RoC","year":2021,"value":0.75,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":0.75,"weight":0.30176}]},"consensus":{"exists":false,"strength":0,"disagreement_magnitude":0.314261,"warning":null}},"interpretation":{"summary":"Regulatory agencies show substantial disagreement. EPA CTX / CalEPA classifies as higher risk (80th percentile), while HQ_DIRECT concludes lower risk (35th percentile).","confidence_note":"Moderate-quality evidence base. Disagreement reflects methodological and interpretive differences, not data quality issues.","context_note":null,"warning":null},"sources":[{"id":"iarc_hce_vol73_1999","type":"iarc_monograph","title":"IARC Monographs Volume 73: Hexachloroethane — Group 2B; Hepatocellular Carcinomas in Female Mice; Inadequate Human Evidence; Metal Refining and Military Smoke Applications","year":1999},{"id":"atsdr_hce_toxprofile","type":"regulatory","title":"ATSDR Toxicological Profile: Hexachloroethane — Hepatotoxicity, Carcinogenicity in Mice, Military Smoke Munitions, Aluminum Refining Exposure, Aquatic Bioaccumulation","year":1996},{"id":"r60-2026-09-24-d867-ecfr-29cfr1910.1000","type":"regulatory","title":"§ 1910.1000 Air contaminants.","url":"https://www.ecfr.gov/api/versioner/v1/full/2026-09-22/title-29.xml?part=1910&section=1910.1000"},{"id":"r60-2026-09-30-d918-oehha-prop65-list-csv-own-url","type":"regulatory","title":"PROPOSITION 65 LIST OF CARCINOGENS OR REPRODUCTIVE TOXICANTS","year":2026,"url":"https://oehha.ca.gov/sites/default/files/media/2025-01/p65chemicalslist.csv"},{"id":"r60-2026-09-26-d867-cc1-iarc-list-of-classifications-loc-app","type":"regulatory","title":"IARC Monographs, List of Classifications","year":2026,"url":"https://monographs.iarc.who.int/list-of-classifications"},{"id":"r60-ntp-roc-15th-listed-substances","type":"regulatory","title":"Substances Listed in the Fifteenth Report on Carcinogens","url":"https://ntp.niehs.nih.gov/sites/default/files/ntp/roc/content/listed_substances_508.pdf"},{"id":"r60-2026-09-25-d449-iris-167","type":"regulatory","title":"Hexachloroethane | CASRN 67-72-1 | DTXSID7020689 | IRIS | US EPA, ORD","url":"https://iris.epa.gov/ChemicalLanding/&substance_nmbr=167"},{"id":"echa-chem-reach-registrations","type":"regulatory","title":"ECHA CHEM, Download all substances: REACH registrations (ECHA's own list of REACH-registered substances)","year":2026,"url":"https://chem.echa.europa.eu/"},{"id":"src_pubchem_tox_6214","type":"pubchem","title":"PubChem: Toxicity section (CID 6214)","url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/6214/JSON?heading=Toxicity"},{"id":"r60-2026-09-29-d899-s1-b07x-niosh-npg-npgd0316-hexachloroethane","type":"regulatory","title":"NIOSH Pocket Guide to Chemical Hazards: Hexachloroethane (npgd0316)","url":"https://www.cdc.gov/niosh/npg/npgd0316.html"},{"id":"r60-2026-10-02-d983-ac4-ctx-apis-data-domains","type":"regulatory","title":"Computational Toxicology and Exposure APIs: Data Domains (EPA CCTE)","url":"https://www.epa.gov/comptox-tools/computational-toxicology-and-exposure-apis-data-domains"},{"id":"r60-2026-10-02-d983-ac4-ctx-dashboard-release-notes","type":"regulatory","title":"CompTox Chemicals Dashboard: Release Notes (EPA)","url":"https://www.epa.gov/chemical-research/comptox-chemicals-dashboard-release-notes"},{"id":"r60-2026-10-01-dd54-pops-all-pops","type":"regulatory","title":"Stockholm Convention: All POPs (the Convention's own list of listed chemicals, Annexes A, B and C)","url":"https://www.pops.int/TheConvention/ThePOPs/AllPOPs/tabid/2509/Default.aspx"},{"id":"r60-2026-10-01-dd54-pops-new-pops","type":"regulatory","title":"Stockholm Convention: The New POPs (the Convention's own index of listed chemicals)","url":"https://www.pops.int/TheConvention/ThePOPs/TheNewPOPs/tabid/2511/Default.aspx"},{"id":"doc-2026-10-03-d975-www-atsdr-cdc-gov-toxprofiles-tp97-pdf","type":"assessment","title":"Toxicological Profile for Hexachloroethane (ATSDR)","url":"https://www.atsdr.cdc.gov/ToxProfiles/tp97.pdf"},{"id":"doc-2026-10-03-d975-iris-epa-gov-static-pdfs-0167-summary-pdf","type":"assessment","title":"Hexachloroethane (HCE); CASRN: 67-72-1): IRIS Chemical Assessment Summary","url":"https://iris.epa.gov/static/pdfs/0167_summary.pdf"},{"id":"r60-2026-09-27-d820-osha-annotated-table-z-1","type":"regulatory","title":"Permissible Exposure Limits – OSHA Annotated Table Z-1","url":"https://www.osha.gov/annotated-pels/table-z-1"},{"id":"doc-2026-10-03-d975-ecotox-ascii-09-15-2026","type":"database","title":"EPA ECOTOX Knowledgebase ASCII release ecotox_ascii_09_15_2026","url":"https://gaftp.epa.gov/ecotox/ecotox_ascii_09_15_2026.zip"},{"id":"pubchem-exp-cameo-chemicals-cid-6214","type":"database","title":"CAMEO Chemicals, as recorded by PubChem (Experimental Properties, CID 6214; where-to-look, not a source of this value)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/6214/JSON?heading=Experimental+Properties"},{"id":"pubchem-exp-hazardous-substances-data-bank-cid-6214","type":"database","title":"Hazardous Substances Data Bank (HSDB), as recorded by PubChem (Experimental Properties, CID 6214; where-to-look, not a source of this value)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/6214/JSON?heading=Experimental+Properties"},{"id":"pubchem-exp-occupational-safety-and-health-administr-cid-6214","type":"database","title":"Occupational Safety and Health Administration (OSHA), as recorded by PubChem (Experimental Properties, CID 6214; where-to-look, not a source of this value)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/6214/JSON?heading=Experimental+Properties"},{"id":"ctx_pred_dtxsid7020689","type":"reference","title":"EPA CompTox CTX API: predicted properties for DTXSID7020689 (Hexachloroethane)","url":"https://comptox.epa.gov/ctx-api/chemical/property/predicted/search/by-dtxsid/DTXSID7020689"},{"id":"pubchem-computed-structure-cid-6214","type":"database","title":"PubChem computed structure descriptors for CID 6214 (computed, not measured; as recorded by PubChem)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/compound/6214"}],"sources_scope":"record","derived_markers":[],"warnings":["year_inferred:EPA CTX / NTP RoC:2021","year_inferred:EPA CTX / CalEPA:2021","unmapped_classification:EPA CTX / NIOSH:potential occupational carcinogen","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: negativ","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: negativ","unmapped_classification:Denmark, as recorded by ToxValDB:skin irritation: skinirr2 (score: high)","unmapped_classification:Canada, as recorded by ToxValDB:eye irritation: serious eye damage/eye irritation ","unmapped_classification:Japan, as recorded by ToxValDB:eye irritation: category 2b (score: moderate)","unmapped_classification:Japan, as recorded by ToxValDB:skin irritation: category 3 (score: moderate)","unmapped_classification:Japan, as recorded by ToxValDB:skin sensitization: not classified (score: low)"],"meta":{"synthesis_version":"1.1.0","config_version":"1.1.0","n_sources":5,"db_version":51,"warnings":["year_inferred:EPA CTX / NTP RoC:2021","year_inferred:EPA CTX / CalEPA:2021","unmapped_classification:EPA CTX / NIOSH:potential occupational carcinogen","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: negativ","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: negativ","unmapped_classification:Denmark, as recorded by ToxValDB:skin irritation: skinirr2 (score: high)","unmapped_classification:Canada, as recorded by ToxValDB:eye irritation: serious eye damage/eye irritation ","unmapped_classification:Japan, as recorded by ToxValDB:eye irritation: category 2b (score: moderate)","unmapped_classification:Japan, as recorded by ToxValDB:skin irritation: category 3 (score: moderate)","unmapped_classification:Japan, as recorded by ToxValDB:skin sensitization: not classified (score: low)"]},"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","exposure_inhalation","aquatic_life","human_teen","human_elderly","human_pregnant"]}