{"hq_id":"hq-p-spe-000007","name":"High-Temperature Wok and Commercial Deep-Fry Cooking (Acrolein, Kitchen Air)","category":{"primary":"specialty","secondary":"","tags":[]},"product_tier":"SPE","overall_risk_level":"high","description":"High-heat wok cooking at 350°C generates acrolein concentrations that would trigger occupational protections in a restaurant. At home, no standard applies.","synthesis":{"derived_risk_level":"moderate_to_high","synthesis_confidence":0.715,"synthesis_method":"compound_composition","context_used":"human_adult","context_source":"product_users","exposure_modifier":1.265,"vulnerability_escalated":false,"escalation_reason":null,"compounds_resolved":1,"compounds_total":1,"synthesis_date":"2026-05-09","synthesis_version":"1.2.0","methodology_note":"exposure_modifier and adjusted_magnitude are computed from ALETHEIA-calibrated heuristics (route × duration × frequency multipliers, clamped to [0.5, 1.4]). Multipliers are directionally informed by EPA Exposure Factors Handbook (2011) and CalEPA OEHHA but are not regulatory consensus. See /api/methodology for full disclosure."},"hazard_summary":{"sensitive_populations":"Frequent high-heat cookers; Chinese restaurant workers; families with daily wok cooking; children in high-heat cooking households","overall_risk":"high","primary_concerns":["Wok cooking at 350°C generates acrolein at occupational-level concentrations (>0.1 ppm NIOSH ceiling); Chinese restaurant workers: lung cancer OR 1.4–2.5 in never-smokers; no residential indoor standard"],"exposure_routes":"Inhalation during high-heat cooking; inadequate kitchen ventilation in most residential/commercial settings"},"exposure":{"routes":["dermal"],"contact_types":["inhalation","dermal"],"users":["adult"],"duration":"hours","frequency":"daily","scenarios":["Dermal contact during handling of High-Temperature Wok and Commercial Deep-Fry Cooking (Acrolein, Kitchen Air) (hours contact)"],"notes":"Exposure to High-Temperature Wok and Commercial Deep-Fry Cooking (Acrolein, Kitchen Air) occurs via dermal."},"consumer_guidance":{"red_flags":[{"indicator":"Contains suspected carcinogen","meaning":"Acrolein — classified by IARC or NTP as carcinogenic or probably carcinogenic to humans","action":"Minimize exposure; consider alternatives; follow use guidelines strictly"},{"indicator":"Overall risk level: high","meaning":"Multiple hazard pathways identified for this product category","action":"Limit exposure duration and frequency; use protective measures where applicable"}],"green_flags":[{"indicator":"Third-party safety tested","meaning":"Independent laboratory verification of safety claims","verification":"Check for recognized certification marks and test reports"}],"what_to_ask":[{"question":"Has this product been tested for carcinogenic compounds?","why_it_matters":"Products in this category may contain or release carcinogenic compounds; independent testing provides verification beyond manufacturer claims"}],"alternatives":[{"name":"Air fryer","notes":"Requires no oil or minimal oil; produces fewer harmful fumes"},{"name":"Steaming or boiling","notes":"No acrolein production; healthier cooking method"}],"notes":null},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"OSHA General Duty Clause + Substance-Specific PELs (29 CFR 1910.1000)","citation":null,"requirements":"Employer must provide workplace free of recognized hazards. Permissible Exposure Limits (PELs) for ~500 chemicals. Hazard Communication Standard (HCS) requires SDS and labeling.","compliance_status":null,"effective_date":null,"enforcing_agency":null,"penalties":null,"source_ref":null},{"jurisdiction":"EU","regulation":"Chemical Agents Directive 98/24/EC","citation":null,"requirements":"Occupational Exposure Limits (OELs) for chemical agents. Risk assessment and hierarchy of controls. Health surveillance for exposed workers.","compliance_status":null,"effective_date":null,"enforcing_agency":null,"penalties":null,"source_ref":null}],"certifications":[{"name":"OSHA PEL","issuer":"OSHA","standard":"29 CFR 1910.1000","scope":"Occupational exposure limits for hazardous substances"}],"labeling":{"required_disclosures":[],"prop65_warning":{"required":null,"chemicals":[],"endpoint":null,"notes":null},"ghs_labeling":{"required":null,"signal_word":null,"pictograms":[],"hazard_statements":[],"notes":null},"hidden_ingredients":{"trade_secret_protected":null,"categories_hidden":[],"estimated_count":null,"known_concerns":null,"notes":null},"notes":null},"recalls":[],"regulatory_gap":null,"notes":null},"lifecycle":{"recyclable":null,"disposal_guidance":"Follow OSHA and facility waste disposal protocols","hazardous_waste":null,"expected_lifespan":"varies"},"formulation":{"form":"composite_material","key_ingredients":[{"hq_id":null,"name":"Stainless steel or aluminum housing","role":"base_material","concentration_pct":"40-50"},{"hq_id":null,"name":"Non-stick coating (PTFE/PFOA or alternative)","role":"coating","concentration_pct":"1-3"},{"hq_id":null,"name":"Electrical components and heating element","role":"additive","concentration_pct":"30-40"},{"hq_id":null,"name":"Silicone gaskets and insulation","role":"coating","concentration_pct":"5-10"}],"certifications":[]},"materials":{"common":[{"material_id":"hq-m-env-000032","material_name":"Acrolein and Reactive Aldehydes from Overheated Cooking Oils (Indoor Kitchen Air)","component":null,"prevalence":"common"}],"concerning":[{"material_id":"hq-m-env-000032","concern":"Wok cooking at 350°C generates acrolein at occupational-level concentrations (>0.1 ppm NIOSH ceiling); no residential indoor air standard; occupational protection does not extend to home kitchens","compounds_of_concern":[],"source_refs":[]},{"material_id":"hq-m-env-000032","concern":"Recirculating and undersized range hoods do NOT remove acrolein; ducted hoods required for effective removal; most US homes lack adequate ventilation","compounds_of_concern":[],"source_refs":[]},{"material_id":"hq-m-env-000032","concern":"EPA chronic RfC 0.02 µg/m³; residential kitchen peak 100–1,000× EPA reference (2–20 µg/m³); cumulative from multiple cooking events daily","compounds_of_concern":[],"source_refs":[]},{"material_id":"hq-m-env-000032","concern":"Potential contaminant: Ultrafine particulate matter (PM0.1)","compounds_of_concern":[],"source_refs":[]},{"material_id":"hq-m-env-000032","concern":"Potential contaminant: Secondary organic aerosol formation products","compounds_of_concern":[],"source_refs":[]}],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000035","compound_name":"Acrolein","role":"base","typical_concentration":null}],"identifiers":{"common_names":["wok cooking","deep fryer","high-heat stir-fry"],"aliases":[],"manufacturer":null,"brands":[]},"brand_examples":[{"brand":"Generic Mass-Market Brand A","manufacturer":"Consumer Products Corporation","market_position":"mass_market","notable":"Widely available mass-market option"},{"brand":"Generic Mass-Market Brand B","manufacturer":"Consumer Goods Ltd","market_position":"mass_market","notable":"Popular budget alternative"},{"brand":"Premium Brand A","manufacturer":"Premium Consumer Inc","market_position":"premium","notable":"Upscale premium positioning"},{"brand":"Professional Brand","manufacturer":"Professional Products Co","market_position":"professional","notable":"Professional/salon-grade option"},{"brand":"Specialty Eco-Brand","manufacturer":"Natural Products Ltd","market_position":"premium","notable":"Sustainable/natural product line"}],"brand_examples_disclaimer":"Representative branded products of this category. Concerning ingredients listed in materials.concerning[] apply to the category, not necessarily to every named brand. Specific formulations vary by SKU and may have changed since this record was written; consult the brand's current ingredient label before drawing brand-level conclusions.","sources":[{"id":"src_001","type":"journal","title":"Chinese Restaurant Worker Lung Cancer Risk (Never-Smoker OR 1.4–2.5, California SCAB Studies)","year":2010},{"type":"regulation","title":"OSHA General Duty Clause + Substance-Specific PELs (29 CFR 1910.1000)","jurisdiction":"USA","id":"src_09aaa4aa"},{"type":"regulation","title":"Chemical Agents Directive 98/24/EC","jurisdiction":"EU","id":"src_7f401427"},{"id":"iarc_63_acrolein","type":"regulatory","title":"IARC Monographs Volume 63: Acrolein","year":1995,"inherited_from_compound":"hq-c-org-000035"},{"id":"epa_acrolein_iris","type":"regulatory","title":"US EPA IRIS: Acrolein — Provisional Toxicological Review (External Review Draft)","year":2003,"inherited_from_compound":"hq-c-org-000035"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-14T01:22:06.112Z"}}