Evidence map›Paper›PMID 27388594›Full record

ArticleEnvironmental science and pollution research international2017

Evaluation of rhamnolipid addition on the natural attenuation of estuarine sediments contaminated with diesel oil.

Mitsue M Nakazawa, Sávia Gavazza, Mario T Kato, Lourdinha Florencio

Abstract read
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In one paragraph

Article in Environmental science and pollution research international, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 39% of its field
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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Application potential ofOpen life sciences · 2026
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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 at 1 institution in 1 country.

Mitsue M NakazawaLaboratory of Environmental Sanitation, Department of Civil and Environmental Engineering, Federal University of Pernambuco, Av. Acadêmico Hélio Ramos, s/n. Cidade Universitária, CEP, Recife, PE, 50740-530, Brazil.
Sávia GavazzaLaboratory of Environmental Sanitation, Department of Civil and Environmental Engineering, Federal University of Pernambuco, Av. Acadêmico Hélio Ramos, s/n. Cidade Universitária, CEP, Recife, PE, 50740-530, Brazil. savia@ufpe.br.
Mario T KatoLaboratory of Environmental Sanitation, Department of Civil and Environmental Engineering, Federal University of Pernambuco, Av. Acadêmico Hélio Ramos, s/n. Cidade Universitária, CEP, Recife, PE, 50740-530, Brazil.
Lourdinha FlorencioLaboratory of Environmental Sanitation, Department of Civil and Environmental Engineering, Federal University of Pernambuco, Av. Acadêmico Hélio Ramos, s/n. Cidade Universitária, CEP, Recife, PE, 50740-530, Brazil.
Universidade Federal de Pernambuco · BR

Funding

Financiadora de Estudos e Projetos 01.10.0775.00 - Ref. nº 2651/09Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco (BR) BFM-0008-3.07/11Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco (BR) IBPG-1414-3.07/08
6 · The paper itself

Abstract

The aim of the present study was to assess the bioremediation of estuarine sediments contaminated with diesel oil. The following two experiments were performed: natural attenuation (NA) and stimulated natural attenuation (SNA), using rhamnolipid as biosurfactant. Sediment samples were accommodated into glass columns and then contaminated with diesel oil on the top. The column profiles were separated into surface, middle, and bottom for the analyses. The 16 polycyclic aromatic hydrocarbons (PAHs) prioritized by US Environmental Protection Agency (EPA) were monitored for 349 days. Those with three and four rings showed increasing concentrations through the operation period in the middle and bottom samples, particularly between days 111 and 338, and in the SNA experiment. Those with five and six rings were also detected in the deeper portions of the columns, suggesting the percolation of PAHs with a high molecular weight. Total organic carbon was reduced by 91 and 89 % in the NA and SNA samples, respectively, although no statistically significant differences (p > 0.05) were found between the two treatments. The analyses by denaturing gradient gel electrophoresis indicated a slight shift in the microbial community structure over the experiments. Microorganisms belonging to the γ-Proteobacteria phylum were the main bacteria involved. The archaeal community exhibited dominance of hydrogenotrophic methanogens, indicating the obligate anaerobic biodegradation of intermediate compounds from hydrocarbon degradation.

Indexed as

MicrobiotaBiodegradation, EnvironmentalBrazilEnvironmental Restoration and RemediationEstuariesGasolineGeologic SedimentsGlycolipidsWater Pollutants, ChemicalGasolineGlycolipidsrhamnolipidWater Pollutants, ChemicalBiodegradationBioremediationHydrogenotrophic methanogensPolycyclic aromatic hydrocarbonsProteobacteriaSulfate reduction

Identifiers

PMID27388594
OpenAlexW2470735713

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.