{"hq_id":"hq-p-out-000012","name":"Synthetic Turf Athletic Fields with Crumb Rubber Infill (6PPD-Quinone, PAH, PFAS)","category":{"primary":"outdoor","secondary":"","tags":[]},"product_tier":"OUT","overall_risk_level":"low","description":"Every synthetic turf field is filled with recycled tire crumb rubber. The rubber contains 6PPD, an antiozonant that prevents cracking.","synthesis":{"derived_risk_level":"moderate_to_high","synthesis_confidence":0.88,"synthesis_method":"compound_composition","context_used":"human_child","context_source":"product_users","exposure_modifier":1.1,"vulnerability_escalated":true,"escalation_reason":"Child exposure group","compounds_resolved":4,"compounds_total":4,"synthesis_date":"2026-03-27","synthesis_version":"1.0.0"},"hazard_summary":{"sensitive_populations":"Young athletes age 6–18 (highest exposure due to field play intensity); goalkeepers and linemen with highest skin contact with crumb; athletes with respiratory disease or asthma; aquatic organisms in urban watersheds receiving field runoff","ecosystem_impact":"Stormwater from synthetic turf fields contributes 6PPD-quinone to urban streams where concentrations regularly exceed lethal concentration for salmon","overall_risk":"low","primary_concerns":["6PPD-quinone LC50 coho salmon 0.8 µg/L; stormwater runoff from fields into urban streams regularly exceeds lethal concentration; direct athlete contact with 6PPD-quinone and PAH-laden crumb at 60–90°C; PFAS in synthetic fiber and backing with bioaccumulation potential; 12,000+ school and recreational fields nationally with direct athlete contact and stormwater runoff"],"exposure_routes":"Direct athlete skin/respiratory contact with crumb infill during play; stormwater runoff into aquatic ecosystems; potential inhalation of volatilized PAHs and PFAS during warm-weather play"},"exposure":{"routes":["dermal"],"contact_types":["dermal","inhalation"],"users":["adult","child"],"duration":"hours","frequency":"weekly","scenarios":["Incidental mouthing or hand-to-mouth transfer by children"],"notes":"Exposure to Synthetic Turf Athletic Fields with Crumb Rubber Infill (6PPD-Quinone, PAH, PFAS) occurs via dermal. Children and infants face higher exposure per body weight due to developing detoxification systems, higher surface-area-to-weight ratio, and behavioral factors (mouthing, crawling)."},"consumer_guidance":{"red_flags":[{"indicator":"Identified safety concern","meaning":"6PPD-quinone LC50 coho salmon 0.8 µg/L; stormwater runoff from fields into urban streams regularly exceeds lethal concentration; direct athlete contact with 6PPD-quinone and PAH-laden crumb at 60–9...","action":"Review safety data; follow use guidelines; consider alternatives"}],"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":"What safety testing has this product undergone?","why_it_matters":"Third-party testing provides independent verification of safety claims"}],"alternatives":[{"name":"Natural grass athletic fields","notes":"Eliminates synthetic chemical exposure; requires maintenance but biodegradable"},{"name":"Cork or coconut coir infill","notes":"Natural materials with lower chemical concerns; safer for frequent skin contact"},{"name":"Polyethylene (PE) or polypropylene (PP) infill","notes":"Reduced PFAS and PAH content compared to rubber crumb alternatives"}],"notes":null},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"EPA FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act)","citation":null,"requirements":"Pesticide-treated products must be registered with EPA. Product claims of antimicrobial or pest-repellent properties trigger FIFRA registration requirements.","compliance_status":null,"effective_date":null,"enforcing_agency":null,"penalties":null,"source_ref":null},{"jurisdiction":"EU","regulation":"Biocidal Products Regulation (EU) No 528/2012","citation":null,"requirements":"Treated articles must be labeled with active substance name, nanomaterial presence, and relevant instructions for use. Biocidal active substances must be on EU approved list.","compliance_status":null,"effective_date":null,"enforcing_agency":null,"penalties":null,"source_ref":null},{"jurisdiction":"EU","regulation":"REACH — Universal PFAS Restriction (proposed 2023, adoption pending)","citation":null,"requirements":"Proposed ban on manufacture, use, and placing on the market of >10,000 PFAS substances with limited exemptions. If adopted, would be the most comprehensive chemical restriction in EU history.","compliance_status":null,"effective_date":null,"enforcing_agency":null,"penalties":null,"source_ref":null}],"certifications":[{"name":"CPSIA (if children's)","issuer":"CPSC","standard":"Consumer Product Safety Improvement Act","scope":"Lead, phthalate content limits if classified as children's product"}],"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":"Varies by material; PVC items should not be burned; donate if reusable","hazardous_waste":false,"expected_lifespan":"1-3_years"},"formulation":{"form":"textile","key_ingredients":[{"hq_id":null,"name":"Nylon or polyester face fabric","role":"base_material","concentration_pct":"80-85"},{"hq_id":null,"name":"Fluorocarbon DWR (PFAS) coating","role":"coating","concentration_pct":"2-5"},{"hq_id":null,"name":"ePTFE or TPU laminate (waterproof layer)","role":"coating","concentration_pct":"10"},{"hq_id":null,"name":"Seam tape","role":"coating","concentration_pct":"1-2"}],"certifications":[]},"materials":{"common":[{"material_id":"hq-m-str-000090","material_name":"6PPD and 6PPD-Quinone Tire Antiozonant System (Urban Stormwater, Aquatic Toxicant)","component":null,"prevalence":"common"}],"concerning":[{"material_id":"hq-m-str-000090","concern":"6PPD-quinone LC50 = 0.8 µg/L coho salmon (olfactory neurotoxicity) — among most potent synthetic chemicals ever tested; environmental concentrations 0.05–2 µg/L during stormwater events = regular exceedance of LC50; coho salmon, cutthroat trout, steelhead all affected","compounds_of_concern":[],"source_refs":[]},{"material_id":"hq-m-str-000090","concern":"Mechanism: 6PPD-quinone disrupts olfactory neurotransmission; fish cannot navigate to spawning grounds; population collapse independent of direct mortality (neurotoxic immobilization rather than lethal poisoning)","compounds_of_concern":[],"source_refs":[]},{"material_id":"hq-m-str-000090","concern":"Tire wear is non-stop source; every vehicle generates 6PPD-bearing particles continuously; coho salmon population collapse in Pacific Northwest urban watersheds (Tian et al., Science 2021) directly correlated with tire wear particle burden","compounds_of_concern":[],"source_refs":[]},{"material_id":"hq-m-str-000090","concern":"Regulatory gap — EPA CCL5 (2022) lists 6PPD-quinone; no MCL proposed; no drinking water standard; no stormwater discharge limit; no tire reformulation mandate; no tire industry incentive to change (cheaper to continue 6PPD than to invest in alternative antiozonants)","compounds_of_concern":[],"source_refs":[]},{"material_id":"hq-m-str-000090","concern":"Potential contaminant: 6PPD-quinone (ozonation transformation product)","compounds_of_concern":["hq-c-org-002084"],"source_refs":[]}],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000628","compound_name":"6PPD","role":"base","typical_concentration":null},{"hq_id":"hq-c-org-002084","compound_name":"6PPD-quinone","role":"base","typical_concentration":null},{"hq_id":"hq-c-mix-000059","compound_name":"Tire wear particles (TWP)","role":"primary_source","typical_concentration":null},{"hq_id":"hq-c-mix-000066","compound_name":"Nylon microfibers (polyamide)","role":"component","typical_concentration":null}],"identifiers":{"common_names":["artificial turf field","synthetic grass with crumb rubber","athletic field infill","turf crumb rubber"],"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"}],"sources":[{"id":"src_001","type":"journal","title":"Tire Wear Particle-Bound 6PPD-Quinone Causes Olfactory Dysfunction and Mortality in Salmon Returning to Freshwater","year":2021},{"id":"src_002","type":"regulatory","title":"EPA — Synthetic Turf Field Health and Environmental Concerns","year":2016},{"id":"src_003","type":"journal","title":"Synthetic Turf Fields and PFAS — Bioaccumulation and Aquatic Toxicity","year":2023}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-01T14:26:45.307Z"}}