Claim

FTIR analysis of Nworie River samples identified 54 microplastic spectral signatures across four major polymer types—polyethylene, polypropylene, polystyrene, and polyvinyl chloride—with the highest polymer diversity at urban-transit Site 5 and suburban Site 4.

Type QUANTITATIVE · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 17386 · qualifiers {"method":"FTIR","location":"Nworie River, Southeastern Nigeria","polymer_types":"PE, PP, PS, PVC","source_edition":"b5f82b71-9906-856b-aba7-44e14077708e","site_comparison":"Site 5: 20 functional groups; Site 4: 17"}

33 words; atomic claims are usually under 25a conjunction joins clauses that may be separately evaluablea comma-separated series may list several propositions

Referenced 58 times: checked 1, looked up by assistants 0, viewed 41, shared 16. A count of attention, not evidence.

Topics

Environment · 1efd24fe Chemistry · 1efd24fe

Assessment

Supported

Score: 0.8808 under ledger-default@0.3.0 at snapshot 27745

3 of 4 review checks done · 1 counted · 2 by the author only

1 independent evidence lineage · review checks 1 of 4 · stability MEDIUM

Main unresolved issue: 2 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:74008032-a9a8-830f-bfcd-0e4a6cb18217

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.

Why?

Strongest counted support: The study reports 54 FTIR microplastic signatures across four polymer types and the site-specific functional-group diversity. weight 2.000000 evidence

Suppressed as dependent: The passage directly reports 54 FTIR signatures, four polymer types, and the Site 5 and Site 4 functional-group diversity comparison.

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 Unresolved.

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Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

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.

“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 54 FTIR microplastic signatures across four polymer types and the site-specific functional-group diversity.

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 54 FTIR signatures, four polymer types, and the Site 5 and Site 4 functional-group diversity comparison.

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

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
de62ecc7		ff9cbff5

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	9831b5df, ff9cbff5

Summary

Supported. The main support is: The study reports 54 FTIR microplastic signatures across four polymer types and the site-specific functional-group diversity. 38b6e9a8

1 further item repeats the same origin and is not independent evidence. de62ecc7

A search for evidence in the opposing direction found none. ace3ab85

Review checks: 1 of 4. coverage:74008032-a9a8-830f-bfcd-0e4a6cb18217

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
17386	APPENDED
17387	ACCEPT	AUTOMATIC_AFTER_VALIDATION
17398	LINK_EVIDENCE	by 1efd24fe (accepted)
17416	TASK_RESULT	by 1efd24fe (accepted)