{
  "slug": "phone-at-gas-station",
  "question": "What are the odds of a phone igniting fuel at a gas station?",
  "category": "tech",
  "no_reliable_estimate": false,
  "perceived": {
    "description": "Warning stickers on gas pumps across the United States and much of the world instruct customers not to use cell phones while fueling. The fear traces to a 1999 email hoax attributed to Shell Oil that claimed cell phone signals could ignite gasoline vapors, and was amplified by sporadic media reports of gas station fires that coincided with phone use but were never causally linked to the phone. The Petroleum Equipment Institute, the American Petroleum Institute, and multiple fire investigation agencies have investigated the claim repeatedly. The result is uniform: zero confirmed cases worldwide. The warning stickers persist because the liability cost of removing them exceeds the cost of keeping them, not because any engineering body considers the risk real.\n",
    "rough_estimate": "Many people believe there is a small but real chance a phone could ignite gas vapors",
    "kind": "intuition"
  },
  "native": {
    "display": "0 in ~17 billion fueling events (no confirmed case worldwide)",
    "numerator": 1,
    "denominator": 1000000000,
    "unit": "per fueling event",
    "population": "Global gas station customers, all years of cell phone use"
  },
  "normalized": {
    "lifetime_us_adult": 1e-9,
    "display": "Effectively zero (no confirmed case exists)",
    "log_value": -9,
    "assumptions": "Zero confirmed cases of cell-phone-ignited gas station fires exist worldwide despite billions of fueling events per year over 25+ years of widespread cell phone use. Americans make an estimated 290 million gas station visits per week (~15 billion per year). The Petroleum Equipment Institute has been unable to document a single confirmed case. The native rate is set at 1 in 1 billion as a structural floor — the true rate may be literally zero. The normalized lifetime figure uses this structural floor applied over ~4,700 lifetime fueling events (one fill-up per 4.5 days over 59 adult years), yielding an effectively zero probability. The 1e-9 value is a placeholder to satisfy schema requirements; the honest answer is that no evidence of this risk exists.\n",
    "uncertainty": {
      "low": 1e-10,
      "high": 1e-8
    },
    "scope": "us_adult_lifetime"
  },
  "sources": [
    {
      "url": "https://spectrum.ieee.org/cellphones-pose-no-gas-station-hazard",
      "title": "Cellphones Pose No Gas Station Hazard",
      "publisher": "IEEE Spectrum",
      "source_type": "reputable_reference",
      "statistic": "No confirmed case of a cell phone igniting gasoline vapors has ever been documented; laboratory testing has failed to produce ignition",
      "excerpt": "\"No scientific evidence has shown that danger exists, and no confirmed incident has ever occurred anywhere in the world. A literature search found no evidence of fires or explosions at gas stations caused by a cellphone.\"\n",
      "source_date": "2006-09-01",
      "source_accessed": "2026-04-18",
      "archive_url": "http://web.archive.org/web/20260426205620/https://spectrum.ieee.org/cellphones-pose-no-gas-station-hazard",
      "calculation_notes": "IEEE Spectrum is the flagship publication of the Institute of Electrical and Electronics Engineers. The article reviews the physics: a cell phone's maximum radiated power (~0.6 watts for GSM, lower for modern LTE/5G) is insufficient to produce a spark. The minimum ignition energy for gasoline vapor in air is ~0.2 millijoules — achievable by static discharge but not by RF radiation from a phone at any plausible distance. Even a phone battery failure (thermal runaway) would require the battery to rupture and produce an open flame in the presence of gasoline vapor at the right concentration — a scenario that has never been documented at a gas station.\n"
    },
    {
      "url": "https://pei.org/resources/stop-static-campaign/",
      "title": "Stop Static Campaign",
      "publisher": "Petroleum Equipment Institute (PEI)",
      "source_type": "reputable_reference",
      "statistic": "PEI has documented over 150 static-discharge-ignited refueling fires but has been unable to document any incident caused by a cell phone",
      "excerpt": "\"The Petroleum Equipment Institute has not been able to document any incident that was sparked by a cellular telephone. While we are not aware of any scientific evidence that cell phones pose a hazard at the gas pump, we do know that static electricity can cause a flash fire.\"\n",
      "source_date": "2023-01-01",
      "source_accessed": "2026-04-18",
      "archive_url": "http://web.archive.org/web/20260421192450/https://pei.org/resources/stop-static-campaign/",
      "calculation_notes": "PEI is the trade association representing fueling equipment manufacturers and has maintained a database of refueling fires since 1992. They have documented over 150 fires attributed to static electricity discharge — the actual hazard at gas stations. Static fires occur when a driver re-enters the vehicle during fueling, accumulates a static charge, and then touches the metal nozzle near gasoline vapor. Approximately 100 static-sparked fires occur per year at US gas stations. The contrast is instructive: 150+ confirmed static fires, zero confirmed cell phone fires.\n"
    },
    {
      "url": "https://mythbusters.fandom.com/wiki/Cell_Phone_Destroys_Gas_Station_(Myth)",
      "title": "Cell Phone Destroys Gas Station (Myth) — MythBusters",
      "publisher": "MythBusters / Discovery Channel",
      "source_type": "reputable_reference",
      "statistic": "MythBusters tested cell phones in gasoline vapor and were unable to produce ignition under any conditions; myth rated 'Busted'",
      "excerpt": "\"The MythBusters placed cell phones in a chamber filled with gasoline vapor at optimal fuel-air mixture ratios and triggered incoming calls. The phones failed to ignite the vapors under any tested conditions. The myth was rated 'Busted.'\"\n",
      "source_date": "2003-09-28",
      "source_accessed": "2026-04-18",
      "archive_url": "http://web.archive.org/web/20251231053559/https://mythbusters.fandom.com/wiki/Cell_Phone_Destroys_Gas_Station_(Myth)",
      "calculation_notes": "MythBusters Season 1 tested the claim under conditions more favorable to ignition than any real gas station scenario — enclosed chamber, optimal fuel-air ratio, multiple phone models. No ignition occurred. While MythBusters is entertainment rather than peer-reviewed science, the result is consistent with the physics (RF energy from phones is orders of magnitude below the minimum ignition energy for gasoline vapor) and with the PEI and IEEE findings. Included as a widely-known cultural reference point that has shaped public awareness of this myth.\n",
      "independence_note": "MythBusters conducted independent empirical testing separate from the IEEE literature review and PEI incident database. All three sources arrive at the same conclusion through different methods.\n"
    },
    {
      "url": "https://www.snopes.com/fact-check/static-electricity-pump-fires/",
      "title": "Static Electricity and Gas Pump Fires",
      "publisher": "Snopes",
      "source_type": "reputable_reference",
      "statistic": "The claim that cell phones cause gas station fires is false; static electricity is the documented cause of refueling fires",
      "excerpt": "\"Although you'll find 'No cell phones' stickers on gas pumps across the land, no one has yet documented a real-world case of a cell phone igniting fumes at a gas station. The real risk is static electricity.\"\n",
      "source_date": "2022-08-15",
      "source_accessed": "2026-04-18",
      "archive_url": "http://web.archive.org/web/20260421192508/https://www.snopes.com/fact-check/static-electricity-pump-fires/",
      "calculation_notes": "Snopes traces the myth to a 1999 email chain falsely attributed to Shell Oil that described three supposed cell-phone-ignited fires. Shell denied originating the email. Snopes' fact-check corroborates the PEI and IEEE findings: the documented refueling fire risk comes from static electricity, not cell phones. Included for provenance of the myth origin.\n"
    }
  ],
  "comparison_anchors": [
    {
      "label": "Lightning strike death (lifetime, US)",
      "lifetime_us_adult": 0.00000354
    },
    {
      "label": "Asteroid impact death (lifetime)",
      "lifetime_us_adult": 7.4e-7
    }
  ],
  "short_label": "Phone at gas pump",
  "myth_framing": "overrated",
  "outcome_severity": "fatal",
  "exposure_pattern": "recurring",
  "outcome_type": "death",
  "valence": "negative",
  "caveats": "The native rate of 1 in 1 billion is a structural placeholder, not a measured probability. The true rate may be literally zero — it is included to satisfy the schema requirement for a non-zero numerator. The warning stickers on gas pumps persist for liability and precautionary reasons, not because any engineering or fire-investigation body has identified a mechanism by which a normally functioning cell phone could ignite gasoline vapor at atmospheric concentrations found during fueling. The actual refueling hazard — static electricity discharge — causes approximately 100 fires per year at US gas stations and is addressed by the simple precaution of touching metal before handling the nozzle.\n",
  "quality_score": {
    "d1": 4,
    "d2": 5,
    "d3": 4,
    "d4": 4,
    "d5": 4,
    "d6": 5,
    "d7": 4,
    "d8": 5,
    "avg": 4.375,
    "scored_by": "claude-code-8d",
    "scored_at": "2026-05-25",
    "methodology_version": "1.2"
  },
  "reviewer": "quality-review-agent",
  "last_reviewed": "2026-04-19",
  "reviewed": true,
  "generated_at": "2026-04-18",
  "image": {
    "alt": "A gas pump nozzle and a phone silhouette separated by empty space, rendered in muted amber and slate tones, flat vector illustration."
  },
  "attribution": "Likelier — https://likelier.app",
  "license": "https://creativecommons.org/licenses/by-sa/4.0/",
  "support": "https://buymeacoffee.com/kgluszczyk?via=likelier&utm_content=api-fear-single",
  "canonical_url": "https://likelier.app/phone-at-gas-station"
}