{"hq_id":"hq-p-hom-000241","name":"New Construction Off-Gassing (VOC Cocktail — Adhesives, Sealants, Paint, Flooring, Cabinets)","category":{"primary":"household","secondary":"construction","tags":["new construction","off-gassing","VOC","formaldehyde","new home","ventilation"]},"product_tier":"HOM","overall_risk_level":"moderate","description":"New homes produce a VOC cocktail from simultaneous off-gassing of adhesives, sealants, paint, composite wood, flooring, and insulation. Indoor VOC concentrations: 2-10x outdoor levels for first 6-12 months. EPA: new home air can contain 200+ detectable VOCs. 'New home smell' = VOC cocktail. ASHRAE 62.2 recommends continuous mechanical ventilation for all new homes.","synthesis":{"derived_risk_level":"high","synthesis_confidence":0.757,"synthesis_method":"compound_composition","context_used":"human_infant","context_source":"product_users","exposure_modifier":1.1,"vulnerability_escalated":true,"escalation_reason":"Infant exposure group","compounds_resolved":2,"compounds_total":2,"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":"infants, pregnant women, chemically sensitive individuals","overall_risk":"moderate","primary_concerns":["200+ detectable VOCs in new home air","Indoor VOC levels 2-10x outdoor for first 6-12 months","Cumulative effect of simultaneous off-gassing from all new materials","Formaldehyde from composite wood: persistent emitter (months-years)"],"exposure_routes":"Inhalation (continuous VOC exposure from building materials)"},"exposure":{"routes":["inhalation"],"contact_types":["inhalation"],"users":["adult","child","infant"],"duration":"months","frequency":"continuous","scenarios":["First 6-12 months in new construction (peak off-gassing)","Infant nursery in new home (highest vulnerability)","Closed-up new home amplifies VOC concentration","Post-renovation sealed house in winter (minimal ventilation)"],"notes":"Off-gassing timeline: paint (80% gone in 3-7 days), adhesives (weeks-months), composite wood formaldehyde (months-years, decreasing exponentially). ASHRAE 62.2: 7.5 CFM/person + 1 CFM/100 sq ft continuous mechanical ventilation. Maximize ventilation for first 3-6 months, run HVAC with fresh air intake, portable HEPA + activated carbon in bedroom."},"consumer_guidance":{"usage_warning":"Maximize ventilation for first 3-6 months. Specify GREENGUARD Gold certified materials during construction. Delay nursery occupancy as long as feasible. Run bathroom exhaust fans continuously.","safer_alternatives":["GREENGUARD Gold certified building materials","ASHRAE 62.2 compliant continuous mechanical ventilation","Low-VOC/no-VOC paint, adhesives, and sealants","Portable HEPA + activated carbon air purifier in sleeping areas"]},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"ASHRAE 62.2 — Residential Ventilation","citation":"ASHRAE Standard 62.2-2022","requirements":"Continuous mechanical ventilation for all new dwellings: 7.5 CFM/person + 1 CFM/100 sq ft.","compliance_status":null,"effective_date":null,"enforcing_agency":"Local building codes","penalties":null,"source_ref":null}],"certifications":[{"name":"GREENGUARD Gold","issuer":"UL","standard":"UL 2818","scope":"Tests building products for chemical emissions. Gold level meets California school/healthcare criteria."}],"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":false,"disposal_guidance":"N/A — building materials.","hazardous_waste":false,"expected_lifespan":"varies"},"formulation":{"form":"varies","key_ingredients":[],"certifications":[]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000011","compound_name":null,"role":"composite_wood_emission","typical_concentration":"varies"},{"hq_id":"hq-c-org-000029","compound_name":null,"role":"adhesive_component","typical_concentration":"varies"}],"identifiers":{"common_names":["new construction off-gassing (voc cocktail — adhesives, sealants, paint, flooring, cabinets)"],"aliases":[],"manufacturer":null,"brands":[]},"brand_examples":[{"brand":"Sherwin-Williams","manufacturer":"Sherwin-Williams","market_position":"premium","notable":"Professional-grade paints"},{"brand":"Benjamin Moore","manufacturer":"Berkshire Hathaway","market_position":"premium","notable":"Premium interior paint"},{"brand":"Behr","manufacturer":"Masco","market_position":"mass_market","notable":"Mass-market interior paint"}],"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":"2026-03-25"},{"type":"regulation","title":"ASHRAE 62.2 — Residential Ventilation (ASHRAE Standard 62.2-2022)","jurisdiction":"USA","citation":"ASHRAE Standard 62.2-2022","id":"src_cfd7dc94"},{"id":"iarc_100f_form","type":"regulatory","title":"IARC Monographs Volume 100F: Formaldehyde","year":2012,"inherited_from_compound":"hq-c-org-000011"},{"id":"epa_form_iris","type":"regulatory","title":"US EPA IRIS Assessment: Formaldehyde (draft)","year":2010,"inherited_from_compound":"hq-c-org-000011"},{"id":"iarc_100f_bap","type":"regulatory","title":"IARC Monographs Volume 100F: Benzo[a]pyrene — Chemical Agents and Related Occupations","year":2012,"inherited_from_compound":"hq-c-org-000029"},{"id":"epa_bap_iris","type":"regulatory","title":"US EPA IRIS: Benzo[a]pyrene — Toxicological Review (Final)","year":2017,"inherited_from_compound":"hq-c-org-000029"},{"type":"regulatory","title":"US Environmental Protection Agency (EPA)","jurisdiction":"USA","id":"src_defdd418","extraction":"description_reference"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-14T01:33:11.757Z"}}