{"hq_id":"hq-c-org-000028","name":"Acetaldehyde","context":"human_adult","timestamp":"2026-10-27T18:50:45.795Z","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-000028","sha256":"390998192b3322d2c712dadfb315b5449f60c3291102d9768fc877ac33ac84b4"}]},"risk_level":"severe","risk_profile":{"magnitude":{"mean":0.719383,"weightedMean":0.719383,"std_dev":0.15643,"confidence_interval_95":[0.475,0.95],"source_positions":[{"source":"EPA CTX / IARC","year":2021,"value":0.95,"weight":0.30176},{"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":"HQ_DIRECT","year":2026,"value":0.475,"weight":0.35}]},"confidence":{"mean":0.752744,"weightedMean":0.752744,"std_dev":0.130378,"confidence_interval_95":[0.5,0.82],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.5,"weight":0.35},{"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 / IARC","year":2021,"value":0.82,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":0.82,"weight":0.30176}]},"recency":{"mean":0.53333,"weightedMean":0.53333,"std_dev":0.246789,"confidence_interval_95":[0.368,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":1,"weight":0.35},{"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 / IARC","year":2021,"value":0.368,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":0.368,"weight":0.30176}]},"methodology":{"mean":0.936948,"weightedMean":0.936948,"std_dev":0.12223,"confidence_interval_95":[0.7,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.7,"weight":0.35},{"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 / IARC","year":2021,"value":1,"weight":0.30176},{"source":"EPA CTX / CalEPA","year":2021,"value":1,"weight":0.30176}]},"specificity":{"mean":0.78573,"weightedMean":0.78573,"std_dev":0.069264,"confidence_interval_95":[0.75,0.92],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.92,"weight":0.35},{"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 / IARC","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":0.330734,"warning":null}},"interpretation":{"summary":"Regulatory agencies show substantial disagreement. EPA CTX / IARC classifies as higher risk (95th percentile), while HQ_DIRECT concludes lower risk (48th 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_100e","type":"regulatory","title":"IARC Monographs Volume 100E: Personal Habits and Indoor Combustions — Acetaldehyde Associated with Consumption of Alcoholic Beverages","year":2012,"url":"https://www.ncbi.nlm.nih.gov/books/NBK304390/"},{"id":"epa_acetaldehyde_iris","type":"regulatory","title":"US EPA IRIS: Acetaldehyde — Carcinogenicity Assessment (Group B2)","year":1991,"url":"https://cfpub.epa.gov/ncea/iris2/chemicalLanding.cfm?substance_nmbr=290"},{"id":"ipcs_icsc_acetaldehyde","type":"report","title":"IPCS/ILO International Chemical Safety Card (ICSC 0009) — Acetaldehyde","url":"https://inchem.org/documents/icsc/icsc/eics0009.htm"},{"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-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-290","type":"regulatory","title":"Acetaldehyde | CASRN 75-07-0 | DTXSID5039224 | IRIS | US EPA, ORD","url":"https://iris.epa.gov/ChemicalLanding/&substance_nmbr=290"},{"id":"r60-2026-10-01-echa-annex-vi-clp-table-atp23-xlsx","type":"regulatory","title":"ECHA Annex VI to CLP: the unofficial Excel table (up to and including the 23rd ATP) (secondary: unofficial by its own statement)","url":"https://echa.europa.eu/documents/10162/17218/annex_vi_clp_table_atp23_en.xlsx/b3816c13-81a3-816d-773a-62e88c4e2700?t=1761727004499"},{"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_177","type":"pubchem","title":"PubChem: Toxicity section (CID 177)","url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/177/JSON?heading=Toxicity"},{"id":"r60-2026-10-03-d923-niosh-npgd0001","type":"regulatory","title":"NIOSH Pocket Guide to Chemical Hazards - Acetaldehyde","url":"https://www.cdc.gov/niosh/npg/npgd0001.html"},{"id":"r60-2026-09-30-d907-f1d6179110","type":"regulatory","title":"Industry Code of Practice on Chemicals Classification and Hazard Communication (DOSH Malaysia)","url":"https://dosh.gov.my/wp-content/uploads/2026/06/ICOP-Chemical-Classification-and-Hazard-Communication-2014.pdf"},{"id":"pubchem-exp-cameo-chemicals-cid-177","type":"database","title":"CAMEO Chemicals, as recorded by PubChem (Experimental Properties, CID 177; where-to-look, not a source of this value)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/177/JSON?heading=Experimental+Properties"},{"id":"pubchem-exp-hazardous-substances-data-bank-cid-177","type":"database","title":"Hazardous Substances Data Bank (HSDB), as recorded by PubChem (Experimental Properties, CID 177; where-to-look, not a source of this value)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/177/JSON?heading=Experimental+Properties"},{"id":"ctx_pred_dtxsid5039224","type":"reference","title":"EPA CompTox CTX API: predicted properties for DTXSID5039224 (Acetaldehyde)","url":"https://comptox.epa.gov/ctx-api/chemical/property/predicted/search/by-dtxsid/DTXSID5039224"}],"sources_scope":"context","derived_markers":[],"warnings":["year_inferred:EPA CTX / NTP RoC:2021","year_inferred:EPA CTX / IARC: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: positiv","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: positiv","unmapped_classification:ECHA (CLP Annex VI):eye irritation: eye irrit. 2","unmapped_classification:Canada, as recorded by ToxValDB:eye irritation: serious eye damage/eye irritation ","unmapped_classification:Canada, as recorded by ToxValDB:skin sensitization: skin sensitization - category ","unmapped_classification:Japan, as recorded by ToxValDB:eye irritation: category 2a (score: high)","unmapped_classification:Japan, as recorded by ToxValDB:skin irritation: not classified (score: low)","unmapped_classification:Japan, as recorded by ToxValDB:skin sensitization: category 1 (score: high)","unmapped_classification:DOSH Malaysia (ICOP):eye irritation: eye irrit. 2","unmapped_classification:New Zealand, as recorded by ToxValDB:eye irritation: category 6.4a (category 2a) (score","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin irritation: in vivo: moderate or mild irritat","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin irritation: in vivo: studies indicate no sign","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin sensitisation: in vivo (non-llna): not likely"],"meta":{"synthesis_version":"1.1.0","config_version":"1.1.0","n_sources":5,"db_version":53,"warnings":["year_inferred:EPA CTX / NTP RoC:2021","year_inferred:EPA CTX / IARC: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: positiv","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: positiv","unmapped_classification:ECHA (CLP Annex VI):eye irritation: eye irrit. 2","unmapped_classification:Canada, as recorded by ToxValDB:eye irritation: serious eye damage/eye irritation ","unmapped_classification:Canada, as recorded by ToxValDB:skin sensitization: skin sensitization - category ","unmapped_classification:Japan, as recorded by ToxValDB:eye irritation: category 2a (score: high)","unmapped_classification:Japan, as recorded by ToxValDB:skin irritation: not classified (score: low)","unmapped_classification:Japan, as recorded by ToxValDB:skin sensitization: category 1 (score: high)","unmapped_classification:DOSH Malaysia (ICOP):eye irritation: eye irrit. 2","unmapped_classification:New Zealand, as recorded by ToxValDB:eye irritation: category 6.4a (category 2a) (score","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin irritation: in vivo: moderate or mild irritat","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin irritation: in vivo: studies indicate no sign","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin sensitisation: in vivo (non-llna): not likely"]},"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","exposure_inhalation","exposure_ingestion","aquatic_life","human_teen","human_elderly","human_infant","human_pregnant","exposure_dermal","exposure_ocular","occupational_exposure"]}