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ch4_epa_g_mi · Emissions & fuel economy

Methane (CH4) from the US EPA FTP-family regulatory exhaust test, g/mi. GHG-relevant: CH4 has a 100-yr GWP of 27.9 (IPCC AR6). Used in PCAF Scope 3 well-to-wheel emission modelling. Source: epa-certif

type
numeric
applies to
all variants
filled
5%
sources
1

Meaning

Methane (CH4) from the US EPA FTP-family regulatory exhaust test, g/mi. GHG-relevant: CH4 has a 100-yr GWP of 27.9 (IPCC AR6). Used in PCAF Scope 3 well-to-wheel emission modelling. Source: epa-certif

Unit: g/mi

Export shape

apex fieldjson
{
  "ch4_epa_g_mi": 123,
  "_provenance": {
    "ch4_epa_g_mi": {
      "source": "manual",
      "source_record_url": "https://apex-db.org/docs/sources#manual",
      "effective": true
    }
  }
}

Provenance

Apex stores source-qualified provenance for exported values. Buyer snapshots and API responses include the upstream source record where redistribution rights allow it, so a downstream model can cite the original regulator or manufacturer feed.

Field-level fill rates are measured across the current variant snapshot. Sparse fields are still documented because they can be important for regulatory, EV, safety, or emissions workflows.

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