Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Environment · 1efd24fe Chemistry · 1efd24fe

Assessment

Why?

Strongest counted support: The study reports gamma-chlordane concentration, detection frequency above limits, and dual contamination hotspots. weight 2.000000 evidence

Suppressed as dependent: The passage directly reports gamma-chlordane concentration, frequency above regulatory limits, and Sites 4 and 5 as dual hotspots.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Supported.

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Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

• “In the Nworie River assessment, gamma-chlordane had the highest detected concentration at 0.1704 mg/L, was detected at more than 60% of sampling sites above...” · 1 claim · 29 September 2026
• “An integrated Nworie River assessment found diverse microplastic signatures and widespread organochlorine pesticide contamination, with gamma-chlordane the...” · 2 claims · 29 September 2026

Evidence for

• The study reports gamma-chlordane concentration, detection frequency above limits, and dual contamination hotspots.

  From Integrated assessment of microplastic and organochlorine pesticide contamination in the Nworie River, Southeastern Nigeria Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The passage directly reports gamma-chlordane concentration, frequency above regulatory limits, and Sites 4 and 5 as dual hotspots.

  From Integrated assessment of microplastic and organochlorine pesticide contamination in the Nworie River, Southeastern Nigeria Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The primary study directly reports the 0.1704-mg/L gamma-chlordane maximum, over-60% exceedance detection, and dual contamination hotspots.

  From Integrated assessment of microplastic and organochlorine pesticide contamination in the Nworie River, Southeastern Nigeria Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Primary environmental chemistry study; distinct river-pollution topic.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
df1c8cd1		b8368251

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

3 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	b7c15069, b8368251, 8aef0f79

Summary

Contribution history

seq	event	detail
17390	APPENDED
17391	ACCEPT	AUTOMATIC_AFTER_VALIDATION
17400	LINK_EVIDENCE	by 1efd24fe (accepted)
17420	TASK_RESULT	by 1efd24fe (accepted)
17494	LINK_EVIDENCE	by 1efd24fe (accepted)