{"hq_id":"hq-c-org-000281","name":"Pentachlorophenol (PCP)","context":"human_adult","timestamp":"2026-10-27T18:50:43.517Z","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-000281","sha256":"4c29654fa1f72db3dfa66b5d086728d8b9275eeaedd5ceff9e89c1466e548de5"}]},"risk_level":"high","risk_profile":{"magnitude":{"mean":0.689156,"weightedMean":0.689156,"std_dev":0.206006,"confidence_interval_95":[0.35,0.95],"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 / IRIS","year":2021,"value":0.75,"weight":0.30176},{"source":"EPA CTX / NTP RoC","year":2021,"value":0.65,"weight":0.30176},{"source":"HQ_DIRECT","year":2026,"value":0.35,"weight":0.35}]},"confidence":{"mean":0.748069,"weightedMean":0.748069,"std_dev":0.133581,"confidence_interval_95":[0.5,0.82],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.5,"weight":0.35},{"source":"EPA CTX / IRIS","year":2021,"value":0.82,"weight":0.30176},{"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":0.510064,"weightedMean":0.510064,"std_dev":0.263823,"confidence_interval_95":[0.368,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":1,"weight":0.35},{"source":"EPA CTX / IRIS","year":2021,"value":0.368,"weight":0.30176},{"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":0.932564,"weightedMean":0.932564,"std_dev":0.125232,"confidence_interval_95":[0.7,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.7,"weight":0.35},{"source":"EPA CTX / IRIS","year":2021,"value":1,"weight":0.30176},{"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":0.788214,"weightedMean":0.788214,"std_dev":0.070965,"confidence_interval_95":[0.75,0.92],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.92,"weight":0.35},{"source":"EPA CTX / IRIS","year":2021,"value":0.75,"weight":0.30176},{"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":0.395152,"warning":null}},"interpretation":{"summary":"Regulatory agencies show substantial disagreement. EPA CTX / IARC classifies as higher risk (95th 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_pcp_v117_2019","type":"regulatory","title":"IARC Monographs Volume 117: Some Chemicals Used as Solvents and in Polymer Manufacture — Pentachlorophenol Group 1 (non-Hodgkin lymphoma; hepatocellular carcinoma); wood preservative occupational exposure; TCHQ genotoxic metabolite (2019)","year":2019,"url":"https://www.ncbi.nlm.nih.gov/books/NBK543329/"},{"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":"r60-2026-09-24-d873-iris-landing-86-pentachlorophenol","type":"regulatory","title":"Pentachlorophenol | CASRN 87-86-5 | DTXSID7021106 | IRIS | US EPA, ORD","url":"https://iris.epa.gov/ChemicalLanding/&substance_nmbr=86"},{"id":"r60-2026-09-28-d449-nepis-P1002CL2-ocr-vision","type":"regulatory","title":"RED for Pentachlorophenol, EPA 739-R-08-008, Sep 25 2008 (NEPIS P1002CL2)","url":"https://nepis.epa.gov/Exe/ZyPDF.cgi/P1002CL2.PDF?Dockey=P1002CL2.PDF"},{"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":"src_pubchem_tox_992","type":"pubchem","title":"PubChem: Toxicity section (CID 992)","url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/992/JSON?heading=Toxicity"},{"id":"r60-2026-09-29-d899-s1-b05-niosh-npg-npgd0484-pentachlorophenol","type":"regulatory","title":"NIOSH Pocket Guide to Chemical Hazards: Pentachlorophenol (npgd0484)","url":"https://www.cdc.gov/niosh/npg/npgd0484.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":"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":"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":"ctx_pred_dtxsid7021106","type":"reference","title":"EPA CompTox CTX API: predicted properties for DTXSID7021106 (Pentachlorophenol (PCP))","url":"https://comptox.epa.gov/ctx-api/chemical/property/predicted/search/by-dtxsid/DTXSID7021106"}],"sources_scope":"context","derived_markers":[],"warnings":["year_inferred:EPA CTX / IRIS:2021","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: negativ","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: negativ","unmapped_classification:ECHA (CLP Annex VI):eye irritation: eye irrit. 2","unmapped_classification:ECHA (CLP Annex VI):skin irritation: skin irrit. 2","unmapped_classification:Canada, as recorded by ToxValDB:eye irritation: serious eye damage/eye irritation ","unmapped_classification:Japan, as recorded by ToxValDB:eye irritation: category 2a-2b (score: high)","unmapped_classification:Japan, as recorded by ToxValDB:skin irritation: category 2 (score: high)","unmapped_classification:DOSH Malaysia (ICOP):eye irritation: eye irrit. 2","unmapped_classification:DOSH Malaysia (ICOP):skin irritation: skin irrit. 2","unmapped_classification:New Zealand, as recorded by ToxValDB:eye irritation: category 6.4a (category 2a) (score","unmapped_classification:New Zealand, as recorded by ToxValDB:skin irritation: category 6.3a (category 2) (score"],"meta":{"synthesis_version":"1.1.0","config_version":"1.1.0","n_sources":5,"db_version":51,"warnings":["year_inferred:EPA CTX / IRIS:2021","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: negativ","unmapped_classification:US EPA (CompTox genotoxicity summary):epa comptox computed genotoxicity summary: negativ","unmapped_classification:ECHA (CLP Annex VI):eye irritation: eye irrit. 2","unmapped_classification:ECHA (CLP Annex VI):skin irritation: skin irrit. 2","unmapped_classification:Canada, as recorded by ToxValDB:eye irritation: serious eye damage/eye irritation ","unmapped_classification:Japan, as recorded by ToxValDB:eye irritation: category 2a-2b (score: high)","unmapped_classification:Japan, as recorded by ToxValDB:skin irritation: category 2 (score: high)","unmapped_classification:DOSH Malaysia (ICOP):eye irritation: eye irrit. 2","unmapped_classification:DOSH Malaysia (ICOP):skin irritation: skin irrit. 2","unmapped_classification:New Zealand, as recorded by ToxValDB:eye irritation: category 6.4a (category 2a) (score","unmapped_classification:New Zealand, as recorded by ToxValDB:skin irritation: category 6.3a (category 2) (score"]},"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_ingestion","human_teen","human_elderly","human_infant","human_pregnant","aquatic_life","exposure_dermal","exposure_inhalation","exposure_ocular","occupational_exposure"]}