{"hq_id":"hq-c-mix-000023","name":"Nano zinc oxide","context":"human_adult","timestamp":"2026-10-27T21:17:29.220Z","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-000023","sha256":"7d7f5737966df9aac8666ca27ea82117a571a6788f8c1506d4be0bccf7f9cb85"}]},"risk_level":"low","risk_profile":{"magnitude":{"mean":0.2,"weightedMean":0.2,"std_dev":0,"confidence_interval_95":[0.2,0.2],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.2,"weight":0.35}]},"confidence":{"mean":0.5,"weightedMean":0.5,"std_dev":0,"confidence_interval_95":[0.5,0.5],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.5,"weight":0.35}]},"recency":{"mean":1,"weightedMean":1,"std_dev":0,"confidence_interval_95":[1,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":1,"weight":0.35}]},"methodology":{"mean":0.7,"weightedMean":0.7,"std_dev":0,"confidence_interval_95":[0.7,0.7],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.7,"weight":0.35}]},"specificity":{"mean":0.92,"weightedMean":0.92,"std_dev":0,"confidence_interval_95":[0.92,0.92],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.92,"weight":0.35}]},"consensus":{"exists":false,"strength":0,"disagreement_magnitude":0,"warning":"single_source_warning"}},"interpretation":{"summary":"Single source (HQ_DIRECT, 2026) indicates low risk.","confidence_note":"Evidence quality varies; interpretation requires caution.","context_note":null,"warning":"single_source_warning"},"sources":[{"id":"epa_nano_zinc_oxide","type":"regulatory","title":"US EPA: Nanomaterial Case Studies — Nano Zinc Oxide in Sunscreen Products; Dermal Penetration Assessment; Aquatic Toxicity from Zn²⁺ Dissolution; Spray Inhalation Risk","year":2012},{"id":"efsa_zno_sunscreen","type":"regulatory","title":"EFSA/SCCS: Scientific Opinion on Zinc Oxide (nano) in Cosmetics — Dermal Safety Assessment, Intact Skin Penetration, ZnO Fume Fever, Inhalation Concern for Spray Products","year":2016},{"id":"r60-2026-09-25-d867-niosh-npg-npgd0675","type":"regulatory","title":"CDC - NIOSH Pocket Guide to Chemical Hazards - Zinc oxide","url":"https://www.cdc.gov/niosh/npg/npgd0675.html"},{"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":"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_3007857","type":"pubchem","title":"PubChem: Toxicity section (CID 3007857)","url":"https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/compound/3007857/JSON?heading=Toxicity"},{"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"},{"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)","url":"https://echa.europa.eu/documents/10162/17218/annex_vi_clp_table_atp23_en.xlsx/b3816c13-81a3-816d-773a-62e88c4e2700?t=1761727004499"}],"sources_scope":"context","derived_markers":[],"warnings":["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:Japan, as recorded by ToxValDB:eye irritation: not classified (score: low)","unmapped_classification:Japan, as recorded by ToxValDB:skin irritation: not classified (score: low)","unmapped_classification:Japan, as recorded by ToxValDB:skin sensitization: not classified (score: low)","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin corrosion: in vitro / ex vivo: ambiguous (sco","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:eye irritation: in vivo: moderate or mild irritati","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:eye irritation: in vivo: studies indicate no signi","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin irritation: in vivo: studies indicate no sign","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:eye irritation: in vitro / ex vivo: studies indica","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin sensitisation: in vivo (non-llna): ambiguous ","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin sensitisation: in vivo (non-llna): not likely","single_source_warning"],"meta":{"synthesis_version":"1.1.0","config_version":"1.1.0","n_sources":1,"db_version":46,"warnings":["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:Japan, as recorded by ToxValDB:eye irritation: not classified (score: low)","unmapped_classification:Japan, as recorded by ToxValDB:skin irritation: not classified (score: low)","unmapped_classification:Japan, as recorded by ToxValDB:skin sensitization: not classified (score: low)","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin corrosion: in vitro / ex vivo: ambiguous (sco","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:eye irritation: in vivo: moderate or mild irritati","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:eye irritation: in vivo: studies indicate no signi","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin irritation: in vivo: studies indicate no sign","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:eye irritation: in vitro / ex vivo: studies indica","unmapped_classification:ECHA eChemPortal, as recorded by ToxValDB:skin sensitisation: in vivo (non-llna): ambiguous ","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","exposure_inhalation","aquatic_life","human_teen","human_elderly","human_pregnant"]}