Evidence map›Paper›PMID 31337836›Full record

ArticleScientific reports2019

A novel method for assessing microplastic effect in suspension through mixing test and reference materials.

Zandra Gerdes, Markus Hermann, Martin Ogonowski, Elena Gorokhova

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Review
  2. Article
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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

4 authors.

Zandra GerdesDepartment of Environmental Science and Analytical Chemistry, Stockholm University, Svante Arrhenius väg 8, SE-11418, Stockholm, Sweden.
Markus HermannDepartment of Environmental Science and Analytical Chemistry, Stockholm University, Svante Arrhenius väg 8, SE-11418, Stockholm, Sweden.
Martin OgonowskiDepartment of Environmental Science and Analytical Chemistry, Stockholm University, Svante Arrhenius väg 8, SE-11418, Stockholm, Sweden.
Elena GorokhovaDepartment of Environmental Science and Analytical Chemistry, Stockholm University, Svante Arrhenius väg 8, SE-11418, Stockholm, Sweden. elena.gorokhova@aces.su.se.ORCID http://orcid.org/0000-0002-4192-6956

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The occurrence of microplastic in the environment is of global concern. However, the microplastic hazard assessment is hampered by a lack of adequate ecotoxicological methods because of conceptual and practical problems with particle exposure. In the environment, suspended solids (e.g., clay and cellulose) in the same size range as microplastic, are ubiquitous. Therefore, it must be established whether the addition of microplastic to these background levels of particulate material represents a hazard. We present a novel approach employing a serial dilution of microplastic and reference particles, in mixtures, which allows disentangling the effect of the microplastic from that of the other particulates. We demonstrate the applicability of the method using an immobilization test with Daphnia magna exposed to polyethylene terephthalate (test microplastic; median particle diameter ~5 µm) and kaolin clay (reference material; ~3 µm). In the range of the suspended solids test concentrations (0-10 000 mg L

Identifiers

PMID31337836
PMCPMC6650601

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Registered trials

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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.