{"hq_id":"hq-p-hom-000237","name":"Lead Paint Removal and Abatement (Pre-1978 Homes, RRP Rule, DIY Hazards)","category":{"primary":"household","secondary":"renovation","tags":["lead paint","abatement","RRP","pre-1978","renovation","dust","children","EPA"]},"product_tier":"HOM","overall_risk_level":"high","description":"37.1 million US homes (pre-1978) contain lead-based paint — the #1 source of childhood lead exposure. Renovation, repair, and painting (RRP) activities that disturb lead paint generate hazardous lead dust and chips. EPA RRP Rule (2008): contractors working on pre-1978 homes must be EPA-certified, use lead-safe work practices (containment, HEPA vacuum, wet methods), and verify cleanup with dust wipe testing. DIY renovation is NOT covered by RRP Rule — homeowners can legally create lead hazards in their own homes without training. CDC: no safe blood lead level in children. HUD action level: 40 ug/ft2 on floors, 250 ug/ft2 on windowsills.","synthesis":{"derived_risk_level":"severe","synthesis_confidence":0.744,"synthesis_method":"compound_composition","context_used":"human_child","context_source":"product_users","exposure_modifier":1.1,"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":"children under 6 (highest risk — developing brain, hand-to-mouth), pregnant women, renovation workers","overall_risk":"high","primary_concerns":["37.1 million US pre-1978 homes contain lead paint","DIY renovation not covered by EPA RRP Rule (no training required)","Lead dust from renovation settles on surfaces children contact","CDC: no safe blood lead level in children — any exposure causes harm"],"exposure_routes":"Inhalation (lead dust from sanding/scraping); oral (children ingesting chips/dust); dermal (handling painted surfaces)"},"exposure":{"routes":["inhalation","oral","dermal"],"contact_types":["inhalation","oral_direct","skin_brief"],"users":["adult","child"],"duration":"days_to_weeks","frequency":"event-based","scenarios":["Sanding, scraping, or heat-gunning lead paint (extreme dust generation)","Children ingesting lead paint chips or contaminated dust","DIY renovation without containment or HEPA cleanup","Post-renovation dust settling on surfaces children contact"],"notes":"EPA RRP Rule (40 CFR 745): certified contractors must use containment (plastic sheeting), wet methods, HEPA vacuum cleanup, and dust wipe verification (40 ug/ft2 floors, 250 ug/ft2 sills). Heat guns above 1100F prohibited (lead fume generation). Chemical strippers preferred over sanding for large areas. XRF testing: non-destructive lead paint identification ($200-400 for full home test). 3M LeadCheck swabs: $1/test, instant field screening (false negative rate: 3-5%). Encapsulation (painting over intact lead paint with encapsulant): acceptable if paint is in good condition and surface won't be disturbed."},"consumer_guidance":{"usage_warning":"Pre-1978 home? Test before any renovation: XRF ($200-400) or 3M LeadCheck swabs ($1/test). Hire EPA-certified RRP contractor for any work disturbing >6 sq ft of paint. If DIY: contain work area with plastic, wet-sand only, HEPA vacuum all surfaces, dust-wipe test before reoccupying. Keep children and pregnant women away during and after renovation until cleanup verified.","safer_alternatives":["Hire EPA RRP-certified contractor (legally required for contractors)","Encapsulation over intact lead paint (avoids dust generation)","Chemical paint strippers instead of sanding (less dust)","HEPA vacuum + wet wipe cleanup with dust wipe verification"]},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"EPA RRP Rule (Renovation, Repair, and Painting)","citation":"40 CFR 745 Subpart E","requirements":"Contractors must be EPA-certified for work on pre-1978 housing. Lead-safe work practices: containment, wet methods, HEPA vacuum, dust wipe verification. Does NOT apply to homeowner DIY.","compliance_status":null,"effective_date":"2008-04-22","enforcing_agency":"EPA","penalties":"Up to $37,500/day per violation","source_ref":null}],"certifications":[],"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":"Lead paint chips and dust: hazardous waste in some states. Double-bag in 6-mil poly, check local HHW program.","hazardous_waste":true,"expected_lifespan":"varies"},"formulation":{"form":"varies","key_ingredients":[],"certifications":[]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-ino-000001","compound_name":null,"role":"paint_component","typical_concentration":"1-50% by weight in pre-1978 paint"}],"identifiers":{"common_names":["lead paint removal and abatement (pre-1978 homes, rrp rule, diy hazards)"],"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":"EPA RRP Rule (Renovation, Repair, and Painting) (40 CFR 745 Subpart E)","jurisdiction":"USA","year":2008,"citation":"40 CFR 745 Subpart E","id":"src_97e5f91d"},{"id":"src_001","type":"cdc","title":"CDC - Lead Poisoning Prevention","url":"https://www.cdc.gov/lead-prevention/","accessed":"2026-01-13","relevance":"Blood lead reference values, no safe level doctrine","inherited_from_compound":"hq-c-ino-000001"},{"id":"src_002","type":"who","title":"WHO - Lead Poisoning Fact Sheet","url":"https://www.who.int/news-room/fact-sheets/detail/lead-poisoning-and-health","year":2024,"accessed":"2026-01-13","relevance":"Global burden statistics, health effects","inherited_from_compound":"hq-c-ino-000001"},{"type":"regulatory","title":"US Environmental Protection Agency (EPA)","jurisdiction":"USA","id":"src_defdd418","extraction":"description_reference"},{"type":"report","title":"US Centers for Disease Control and Prevention (CDC)","jurisdiction":"USA","id":"src_08f06b18","extraction":"description_reference"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-14T01:25:53.233Z"}}