{"hq_id":"hq-p-spe-000088","name":"Jet Fuel Exposure (JP-8, Kerosene — Ground Crew and Runway Communities)","category":{"primary":"specialty","secondary":"aviation","tags":["jet fuel","JP-8","kerosene","aviation","ground crew","benzene","runway","communities"]},"product_tier":"SPE","overall_risk_level":"moderate","description":"Jet fuel (Jet A/JP-8) exposure for airport ground crew (fueling, maintenance, towing) and runway-adjacent communities. Contains benzene (IARC Group 1), naphthalene (IARC Group 2B), and aliphatic hydrocarbons. Ground crew handle fuel daily — dermal and inhalation exposure. Runway communities: jet exhaust particulates (ultrafine particles) depositing within 2-3 km downwind. Studies at LAX, Boston Logan: elevated UFP and BC (black carbon) in residential areas under approach paths.","synthesis":{"derived_risk_level":"moderate_to_high","synthesis_confidence":0.747,"synthesis_method":"compound_composition","context_used":"human_adult","context_source":"product_users","exposure_modifier":1.265,"vulnerability_escalated":false,"escalation_reason":null,"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":"airport ground crew, runway-adjacent communities","overall_risk":"moderate","primary_concerns":["Benzene in jet fuel — IARC Group 1 carcinogen (0.02-0.5% of fuel)","Ground crew: daily dermal and inhalation fuel exposure","Runway communities: UFP 2-5x elevated under approach/departure paths","Environmental justice: disproportionate impact on communities near airports"],"exposure_routes":"Inhalation of fuel vapor and jet exhaust UFP; dermal contact with fuel"},"exposure":{"routes":["inhalation","dermal"],"contact_types":["inhalation","skin_brief"],"users":["occupational","adult"],"duration":"hours","frequency":"daily","scenarios":["Ground crew: daily fuel handling (dermal + inhalation)","Runway communities: UFP from jet exhaust under approach/departure paths","Fuel farm workers: highest exposure during loading/transfer","Mechanics: fuel-soaked clothing and skin contact during maintenance"],"notes":"NIOSH 2017: recommended exposure limit for kerosene: 100 mg/m3 (10-hr TWA). Military JP-8 occupational health studies: measurable urinary naphtol in exposed personnel. USC/Community study at LAX: UFP 2-5x higher in communities under approach path. Sustainable aviation fuel (SAF) reduces some aromatics but does not eliminate benzene. Electric ground support equipment reduces ground crew exhaust exposure."},"consumer_guidance":{"usage_warning":"Ground crew: wear chemical-resistant gloves, avoid skin contact with fuel, use supplied air or organic vapor respirator during fueling. Runway communities: use MERV 13+ indoor filtration, keep windows closed during peak flight operations. Support airport community health monitoring programs.","safer_alternatives":["Electric ground support equipment (reduces ground crew exhaust exposure)","Sustainable aviation fuel (reduced aromatic content)","MERV 13 indoor filtration for runway-adjacent homes","Airport community health monitoring programs"],"red_flags":[{"indicator":"Exposure in enclosed or poorly ventilated transport environment","meaning":"Chemical concentrations increase in confined spaces.","action":"Maximize ventilation. Open windows when practical."}],"green_flags":[{"indicator":"EPA-registered, UL-certified, or industry safety standard compliance","meaning":"Product/system meets applicable safety requirements.","verification":"Check for relevant certifications."}],"what_to_ask":[{"question":"What are the chemical exposure implications of this transport/travel product?","why_it_matters":"Commuting and travel represent significant daily chemical exposure windows.","good_answer":"Documented safety profile with exposure mitigation.","bad_answer":"No awareness of chemical exposure characteristics."}],"alternatives":[{"name":"Electric ground support equipment","notes":"reduces ground crew exhaust exposure"},{"name":"Sustainable aviation fuel","notes":"reduced aromatic content"},{"name":"MERV 13 indoor filtration for runway-adjacent homes","notes":"Alternative"}]},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"OSHA PEL for kerosene / NIOSH REL","citation":"29 CFR 1910.1000","requirements":"OSHA PEL: not specifically listed (general petroleum distillate limits apply). NIOSH REL: 100 mg/m3 TWA (10-hr).","compliance_status":null,"effective_date":null,"enforcing_agency":"OSHA","penalties":null,"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":"Fuel spills: hazardous material response.","hazardous_waste":true,"expected_lifespan":"varies"},"formulation":{"form":"varies","key_ingredients":[{"hq_id":"hq-c-org-000010","name":"Benzene","role":"fuel_component","concentration_pct":"0.02-0.5"},{"hq_id":"hq-c-org-000096","name":"Naphthalene","role":"fuel_component","concentration_pct":"0.1-3"}],"certifications":[]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000010","compound_name":null,"role":"fuel_component","typical_concentration":"0.02-0.5%"},{"hq_id":"hq-c-org-000096","compound_name":null,"role":"fuel_component","typical_concentration":"0.1-3%"}],"identifiers":{"common_names":["jet fuel exposure (jp-8, kerosene — ground crew and runway communities)"],"aliases":[],"manufacturer":null,"brands":[]},"brand_examples":[{"brand":"Jet-A (multiple refiners)","manufacturer":"Various","market_position":"professional","notable":"Standard commercial jet fuel"},{"brand":"Shell Aviation","manufacturer":"Shell","market_position":"professional","notable":"Major aviation fuel supplier"},{"brand":"World Fuel Services","manufacturer":"World Fuel Services","market_position":"professional","notable":"Aviation fuel distribution"}],"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":"OSHA PEL for kerosene / NIOSH REL (29 CFR 1910.1000)","jurisdiction":"USA","citation":"29 CFR 1910.1000","id":"src_538d3b47"},{"id":"iarc_100f","type":"regulatory","title":"IARC Monographs Volume 100F: Benzene","year":2012,"inherited_from_compound":"hq-c-org-000010"},{"id":"epa_benzene_iris","type":"regulatory","title":"US EPA IRIS Assessment: Benzene","year":1998,"inherited_from_compound":"hq-c-org-000010"},{"id":"iarc_82_naphthalene","type":"regulatory","title":"IARC Monographs Volume 82: Some Traditional Herbal Medicines, Some Mycotoxins, Naphthalene and Styrene — Naphthalene Group 2B Evaluation","year":2002,"inherited_from_compound":"hq-c-org-000096"},{"id":"epa_iris_naphthalene","type":"regulatory","title":"US EPA: Naphthalene — IRIS Toxicological Review, Carcinogenicity Assessment and Reference Concentrations (Group C)","year":1998,"inherited_from_compound":"hq-c-org-000096"},{"type":"monograph","title":"International Agency for Research on Cancer (IARC)","jurisdiction":"International","id":"src_d9ebbaf2","extraction":"description_reference"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-25","timestamp":"2026-05-14T01:25:43.143Z"}}