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particulates_mg_km · Other

DEPRECATED 2026-06-05 — merged into pm_wltp_mg_km via schema/660. Writes are auto-routed by trigger a_variants_canonicalize_fields. Column is always NULL. See field_canonical_map.

type
numeric
applies to
all variants
filled
0%
sources
2

Meaning

DEPRECATED 2026-06-05 — merged into pm_wltp_mg_km via schema/660. Writes are auto-routed by trigger a_variants_canonicalize_fields. Column is always NULL. See field_canonical_map.

Unit: km

Export shape

apex fieldjson
{
  "particulates_mg_km": 123,
  "_provenance": {
    "particulates_mg_km": {
      "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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