{"hq_id":"hq-p-wer-000012","name":"Motorcycle Helmet (polycarbonate/EPS)","category":{"primary":"clothing_apparel","secondary":"safety_gear","tags":["safety","protective_equipment","polycarbonate","formaldehyde"]},"product_tier":"WER","overall_risk_level":"low","description":"Motorcycle helmet with polycarbonate or fiberglass shell, EPS (expanded polystyrene) impact liner, and comfort padding. Prolonged skin contact with interior padding (polyester, polyurethane foam). Potential for formaldehyde off-gassing from adhesives and flame retardants in comfort liner. Some helmet paints contain isocyanates. After crash impact, EPS does not recover — single-use protection. Visor may contain polycarbonate with BPA.","synthesis":{"derived_risk_level":"insufficient_data","synthesis_confidence":0,"synthesis_method":"none","context_source":null,"compounds_resolved":0,"compounds_total":0,"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":{"overall_risk":"low","primary_concerns":["Formaldehyde off-gassing from adhesives (when new)","Flame retardants in comfort padding","BPA in polycarbonate visor (skin contact when raised)","Single-use EPS — must replace after impact"],"sensitive_populations":"Daily riders (chronic low-level exposure)","exposure_routes":"Dermal (prolonged head contact), inhalation (enclosed microenvironment)"},"exposure":{"routes":["dermal","inhalation"],"contact_types":[],"users":[],"duration":"3-5 years","frequency":"daily","scenarios":["Dermal contact during handling of Motorcycle Helmet (polycarbonate/EPS) (3-5 years contact)","Inhalation exposure during use of Motorcycle Helmet (polycarbonate/EPS)"],"notes":"Prolonged head/face contact; enclosed microenvironment; sweating increases exposure"},"consumer_guidance":{"red_flags":["No DOT/ECE certification sticker","Used/previously impacted helmet","Strong chemical smell when new","Over 5 years old"],"green_flags":["DOT + ECE dual certified","SNELL certified","MIPS liner technology","Removable/washable interior"],"what_to_ask":["What certifications does this meet?","What material is the shell?","Are the interior liners removable/washable?"],"alternatives":["Fiberglass or carbon fiber shell (vs polycarbonate)","MIPS-equipped helmets","Helmets with removable/washable liners"],"notes":null},"regulatory":{"applicable_regulations":["DOT FMVSS 218 (US mandatory)","ECE 22.06 (EU/international)","SNELL (voluntary, higher standard)","CPSC (if marketed as bicycle helmet)"],"certifications":[],"labeling":{},"recalls":[],"regulatory_gap":null,"notes":null},"lifecycle":{"recyclable":"generally not (mixed materials)","disposal_guidance":"Replace after any impact or every 5 years; some recycling programs exist","hazardous_waste":false,"expected_lifespan":"5 years or first impact"},"formulation":{"form":"protective_headgear","key_ingredients":[{"hq_id":null,"name":"Polycarbonate shell","role":"outer_protection","concentration_pct":"30-40"},{"hq_id":null,"name":"EPS (expanded polystyrene) liner","role":"impact_absorption","concentration_pct":"30-40"},{"hq_id":null,"name":"Polyurethane comfort foam","role":"comfort_liner","concentration_pct":"5-10"},{"hq_id":null,"name":"Polyester/nylon fabric","role":"interior_lining","concentration_pct":"5-10"}],"certifications":["DOT FMVSS 218","ECE 22.06","SNELL"]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[],"identifiers":{"manufacturer":"","common_names":[],"aliases":[],"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":[{"type":"expert_curation","name":"ALETHEIA Safety Database","date":"2026-03-23"},{"type":"regulation","title":"DOT FMVSS 218 (US mandatory)","jurisdiction":"","id":"src_823ad968"},{"type":"regulation","title":"ECE 22.06 (EU/international)","jurisdiction":"","id":"src_74d8de59"},{"type":"regulation","title":"SNELL (voluntary, higher standard)","jurisdiction":"","id":"src_b90aa0f9"},{"type":"regulation","title":"CPSC (if marketed as bicycle helmet)","jurisdiction":"","id":"src_23dc406a"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-06-17T12:07:24.959Z"},"_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"}