{
  "study": {
    "title": "165 Days Inside a Medication Delivery Vehicle: What the Cabin Recorded Against Controlled Room Temperature",
    "type": "Observational environmental-exposure study",
    "canonicalUrl": "https://noazrx.com/blog/ambient-medication-vehicle-temperature-study/",
    "published": "2026-08-22",
    "utcOffset": "UTC−04:00"
  },
  "dataRule": "Vehicle: exact exported hourly minimum–maximum windows. Mean kinetic temperature: computed from the exported hourly average column, published here because it is the statistic controlled room temperature is defined by. Nothing smoothed, resampled or interpolated.",
  "source": {
    "path": "assets/logs/_ble_record_97079_T260100609U20260802163222.csv",
    "serial": "260100609U",
    "sha256": "516d6245c02efdfe1e4ea4be179e5febbf88363920d71399132f9d020b532725",
    "bytes": 238407,
    "hourlyWindowsParsed": 3937,
    "rowsRejected": 0,
    "windowsExcludedFromMeanKinetic": 8,
    "meanKineticExclusionReason": "The exported average for these hours falls outside their own exported minimum and maximum, so it is not usable as an average. Their extremes are retained; only their average is excluded.",
    "firstWindowStart": "2026-02-19 16:27:11",
    "lastWindowEnd": "2026-08-02 17:27:11"
  },
  "verification": {
    "computed": {
      "highestC": 50.6,
      "lowestC": -14.4,
      "averageC": 17.4,
      "meanKineticC": 23.7
    },
    "reportedByDevice": {
      "highestC": 50.6,
      "lowestC": -14.4,
      "averageC": 17.4,
      "meanKineticC": 23.8
    },
    "deltaC": {
      "highestC": 0.0,
      "lowestC": 0.0,
      "averageC": 0.0,
      "meanKineticC": 0.1
    }
  },
  "limitations": [
    {
      "title": "One vehicle only.",
      "detail": "A single vehicle with a single logger position. Nothing here establishes a fleet distribution, a regional norm or a seasonal model."
    },
    {
      "title": "Continuous cabin recording, not measured transit.",
      "detail": "The logger stayed in the vehicle cabin continuously, including parked, overnight and non-delivery hours. The export carries no trip, ignition, location, climate-control, door or sunlight markers, so working-hours figures are a proxy for the exposure a delivery would meet, not a measurement of transit."
    },
    {
      "title": "Hourly windows, not within-hour distribution.",
      "detail": "The export summarises each hour as a minimum and a maximum. An hour counted above a threshold is an hour in which the cabin reached above it, not an hour spent entirely above it."
    },
    {
      "title": "No medication was carried or assessed.",
      "detail": "No patient medication, prescription or product was placed in the vehicle for this recording. No stability, potency or safety conclusion about any product follows from it."
    },
    {
      "title": "Not a regulatory determination.",
      "detail": "Comparing recorded readings against published reference points is not a compliance finding, an inspection outcome or an approval of any kind."
    }
  ],
  "derived": [
    {
      "path": "data/vehicle-study.json",
      "sha256": "595c6ff70f95084c286107de4b2a9c984fd17537af1063d87c14bc4e681f6263",
      "bytes": 42482
    },
    {
      "path": "data/vehicle-exposure.csv",
      "sha256": "6e77d5fc3d225cf6acfc4e7882f589ea5d572b2609908a785a3a1ca008952d30",
      "bytes": 7024
    }
  ],
  "note": "Every figure published in the article is generated from the source export named above. File hashes are provided so the export used for this analysis can be independently identified. The build fails rather than publishing if the recomputed summary stops matching the summary the logger wrote into its own export header."
}