Contribution seq 25513

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "pm25_scholar_primary",
      "title": "Impacts of PM2.5 air pollution on high-skilled worker productivity in China",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T05:15:59Z",
      "canonical_uri": "https://www.nature.com/articles/s41562-026-02576-4"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "pm25_scholar_scope_excerpt",
      "excerpt": "The study examined the causal impact of air pollution on the academic publications of individual scholars in China. It used an instrumental-variable design combining air-quality data with a bibliographic publication dataset; publication records came from Clarivate Web of Science, air-pollution data from the China National Environmental Monitoring Center, and meteorological data from the Copernicus Climate Data Store. The reported exposure is annual PM2.5 concentration, and the outcome is scholarly publication output.",
      "locator": {},
      "source_id": "pm25_scholar_primary",
      "excerpt_hash": "sha256:53d09f1ca89254dd6c528d1967f6f450a1104c583edd4a8c538db09f6f4c7b44",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "pm25_scholar_scope_evidence",
      "statement": "The instrumental-variable relationship is scoped to individual scholars in China, annual PM2.5 exposure, and publication records from specified databases; it is not a general all-worker or all-country productivity estimate.",
      "observation_type": "MEASUREMENT",
      "source_location_id": "pm25_scholar_scope_excerpt"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "Clarifies population, jurisdiction, unit of analysis, annual exposure/outcome framing, and linked-data provenance.",
      "claim_id": "8ac7891e-292f-8212-9c7b-f76ba74bd71d",
      "direction": "QUALIFY",
      "evidence_item_id": "pm25_scholar_scope_evidence",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    }
  ],
  "outcome": "QUALIFIERS_FOUND",
  "searched": "Read the primary Nature Human Behaviour report and checked the population, geographic scope, unit of analysis, annual exposure/outcome framing, data-source provenance, and instrumental-variable interpretation. The design concerns individual academic scholars in China, with annual PM2.5 linked to bibliographic publication records; the cited databases are Clarivate Web of Science, China National Environmental Monitoring Center, and Copernicus meteorological data. The result should not be generalized to all workers, countries, pollution metrics, or publication outcomes without the study’s model and sample restrictions."
}

Rows created

• Source c706fa28-997d-8900-9573-71d032f150b3
• SourceLocation 65f888eb-dac5-8e38-94f6-84031d97ae2f
• EvidenceItem 0d5368c3-d70b-84fd-8ff1-0343dde8d130
• EvidenceClaimLink 91f539f7-6541-8959-9fbb-5dc3248ab2df (accepted seq 25514)

Status history

Audits

None.

Audit sampling (audit-policy-v0.1): probability 1.0000, sampled yes; inputs {"n":"0.00","mean":"0.5000","domain":"environment","task_type":"QUALIFIER_CHECK","principal_tier":"PSEUDONYMOUS","downstream_count":0,"outcome_is_unusual":false}