{"hq_id":"hq-c-org-000256","name":"NNK (4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone)","context":"human_adult","timestamp":"2026-10-27T19:59:41.345Z","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-000256","sha256":"197777b121472e6b95ea3bb799ae27c285f62525b42adfbdd39b3762efcb3d23"}]},"risk_level":"severe","risk_profile":{"magnitude":{"mean":0.709383,"weightedMean":0.709383,"std_dev":0.179044,"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":"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":0.730777,"weightedMean":0.730777,"std_dev":0.143494,"confidence_interval_95":[0.5,0.82],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.5,"weight":0.35},{"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":0.544216,"weightedMean":0.544216,"std_dev":0.283401,"confidence_interval_95":[0.368,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":1,"weight":0.35},{"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":0.916353,"weightedMean":0.916353,"std_dev":0.134526,"confidence_interval_95":[0.7,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.7,"weight":0.35},{"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":0.7974,"weightedMean":0.7974,"std_dev":0.076231,"confidence_interval_95":[0.75,0.92],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.92,"weight":0.35},{"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":0.360929,"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_tobacco_v100e_2012","type":"regulatory","title":"IARC Monographs Volume 100E: Personal Habits and Indoor Combustions — Tobacco Smoking Group 1, Smokeless Tobacco Group 1, Second-hand Tobacco Smoke Group 1; NNK (4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone) Group 1, NNN (N'-nitrosonornicotine) Group 1 as Individual Tobacco-Specific Nitrosamines (2012)","year":2012,"url":"https://www.ncbi.nlm.nih.gov/books/NBK304392/"},{"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":"r60-2026-10-08-d974-tedx-list-full-export","type":"reference_database","title":"TEDX List of Potential Endocrine Disruptors, full export (Excel from the publisher's own search, operator-saved 2026-10-08; list last updated September 2018)","url":"https://endocrinedisruption.org/interactive-tools/tedx-list-of-potential-endocrine-disruptors/search-the-tedx-list"},{"id":"r60-2026-10-02-d-955-s9-d955-s9-osha-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":"pubchem-exp-cameo-chemicals-cid-47289","type":"database","title":"CAMEO Chemicals, as recorded by PubChem (Experimental Properties, CID 47289; where-to-look, not a source of this value)","year":2026,"url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/47289/JSON?heading=Experimental+Properties"},{"id":"ctx_pred_dtxsid3020881","type":"reference","title":"EPA CompTox CTX API: predicted properties for DTXSID3020881 (NNK (4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone))","url":"https://comptox.epa.gov/ctx-api/chemical/property/predicted/search/by-dtxsid/DTXSID3020881"}],"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:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: positiv","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: positiv"],"meta":{"synthesis_version":"1.1.0","config_version":"1.1.0","n_sources":4,"db_version":44,"warnings":["year_inferred:EPA CTX / NTP RoC:2021","year_inferred:EPA CTX / IARC:2021","year_inferred:EPA CTX / CalEPA:2021","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"]},"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","human_teen","human_elderly","human_infant","human_pregnant"]}