Evidence map›Paper›PMID 26347415›Full record

ArticleEnvironmental science and pollution research international2015

Polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) in e-waste plastic in Nigeria.

O Sindiku, J O Babayemi, M Tysklind, O Osibanjo, R Weber, A Watson, M Schlummer, S Lundstedt

Abstract read
PubMed Publisher
In one paragraph

Article in Environmental science and pollution research international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. The need for better management and control of POPs stockpiles.Environmental science and pollution research international · 2015
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

O SindikuDepartment of Chemistry, Faculty of Science, University of Ibadan, Ibadan, Nigeria.
J O BabayemiDepartment of Chemistry, Faculty of Science, University of Ibadan, Ibadan, Nigeria.
M TysklindDepartment of Chemistry, Umeå University, SE-901 87, Umeå, Sweden.
O OsibanjoDepartment of Chemistry, Faculty of Science, University of Ibadan, Ibadan, Nigeria.
R WeberPOPs Environmental Consulting, 73527, Schwäbisch Gmünd, Germany. roland.weber10@web.de.
A WatsonPublic Interest Consultants, Eaton Crescent, Uplands, Swansea, Wales, UK, SA1 4QR.
M SchlummerDepartment Product Safety and Analysis, Fraunhofer-Institute for Process Engineering and Packaging, 85354, Freising, Germany.
S LundstedtDepartment of Chemistry, Umeå University, SE-901 87, Umeå, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plastics from cathode ray tube (CRT) casings were sampled in Nigeria and analysed for their polybrominated dibenzo-p-dioxin and dibenzofuran (PBDD/F) content. PBDD/Fs, consisting mainly of PBDFs, were detected in BFR containing plastic with a median (mean) concentration of 18,000 ng/g (41,000 ng/g). The PBDD/Fs levels were highest in samples containing PBDEs, but the levels of PBDFs were two orders of magnitude higher than the levels reported in the technical PBDE mixtures and where frequently exceeding 1000 μg/g of PBDE content. These higher levels are likely to arise from additional transformation of PBDEs during production, use, recycling, or storage, but the processes responsible were not identified in this study. PBDD/Fs in CRT casings containing1,2-bistribromophenoxyethane (TBPE) were dominated by tetrabrominated dibenzo-p-dioxin (TBDDs) with concentrations around 10 μg/g of the TBPE content. The PBDD/Fs in CRT casings containing tetrabromobisphenol A (TBBPA) were found at concentrations around 0.1 μg/g of TBBPA levels. Casings treated with TBPE or TBBPA often contained PBDEs (and PBDF) as impurities-probably originating from recycled e-waste plastics. It was estimated that the 237,000 t of CRT casings stockpiled in Nigeria contain between 2 and 8 t of PBDD/Fs. The total PBDD/F contamination in polymers arising from total historic PBDE production/use is estimated in the order of 1000 t. TEQ values of CRT samples frequently exceeded the Basel Convention's provisional low POPs content of 15 ng TEQ/g. Due to the significant risks to health associated with PBDD/Fs, more detailed studies on the exposure routes from PBDD/Fs in stockpiles are needed.

Indexed as

HalogenationBenzofuransDioxinsElectronic WasteEnvironmental MonitoringEnvironmental PollutantsHumansNigeriaPlasticsBenzofuransdibenzo(1,4)dioxindibenzofuranDioxinsEnvironmental PollutantsPlasticsBasel conventionBFRBrominated flame retardantsPBDDPBDEsPBDFStockholm conventionWEEE

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.