Evidence map›Paper›PMID 33587189›Full record

ArticleEnvironmental monitoring and assessment2021

Temporal and spatial variations of surface water quality in the Nile River of Damietta Region, Egypt.

Mohamed El Sayed Taher, Ahmed M Ghoneium, Russell R Hopcroft, Wael S ElTohamy

Abstract read
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In one paragraph

Article in Environmental monitoring and assessment, 2021. 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
1.5field-weighted citation impact, top 20% 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, 19 citations in OpenAlex.

  1. 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 at 2 institutions in 2 countries.

Mohamed El Sayed TaherZoology Department, Faculty of Science, Damietta University, Damietta, Egypt.
Ahmed M GhoneiumZoology Department, Faculty of Science, Damietta University, Damietta, Egypt.
Russell R HopcroftInstitute of Marine Science, University of Alaska Fairbanks, Fairbanks, AK, USA.
Wael S ElTohamyZoology Department, Faculty of Science, Damietta University, Damietta, Egypt. waelsalah@du.edu.eg.ORCID http://orcid.org/0000-0002-2278-6441
Damietta University · EGUniversity of Alaska Fairbanks · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Temporal/spatial variations of surface water quality were examined for the Nile River in the Damietta region where it serves as the major source of water for the inhabitants of Damietta Governorate. A total of 32 water quality parameters were monitored at six sampling sites for 12 months from February 2016 to January 2017. Higher values of chemical oxygen demand (COD), biological oxygen demand (BOD), heavy metals, and nutrients were observed upstream. About ~ 70% of the total variance in observations was explained by five main influences using factor analysis. The first factor (24.6% of the variance) was indicative of the mixed sources of natural and anthropogenic inputs. The second (nutritional) and the third (organic) factors were mainly controlled by the discharges from agricultural and domestic sources, respectively. Human activities and natural processes controlled the fourth and fifth factors. Only 11 parameters (K, temperature, COD, HPC, total hardness, DO, NO

Indexed as

Water Pollutants, ChemicalWater QualityEgyptEnvironmental MonitoringHumansRiversWater Pollutants, ChemicalMultivariate statistical techniquesNile RiverTemporal and spatial variationsWater qualityWater quality index

Identifiers

PMID33587189
OpenAlexW3132083866

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.