Evidence map›Paper›PMID 33900509›Full record

ArticleEnvironmental geochemistry and health2021

Shallow groundwater environmental investigation at northeastern Cairo, Egypt: quality and photo-treatment evaluation.

Mahmoud A Abdelhafiz, El-Montser M Seleem, Hossam A El Nazer, Salah A M Zeid, Salman A Salman, Bo Meng

Abstract read
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In one paragraph

Article in Environmental geochemistry and health, 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
0.5field-weighted citation impact, top 36% 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, 8 citations in OpenAlex.

  1. Article
  2. Environmental impact of the barrage construction on groundwater.Environmental geochemistry and health · 2026
    Article
  3. 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

6 authors at 4 institutions in 2 countries.

Mahmoud A AbdelhafizState Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 99 Lincheng West Road, Guanshanhu district, Guiyang, 550081, China.
El-Montser M SeleemGeology Department, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt. geo_seleem@azhar.edu.eg.
Hossam A El NazerPhotochemistry Department, National Research Centre, Dokki, Cairo, Egypt.
Salah A M ZeidGeology Department, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt.
Salman A SalmanGeological Sciences Department, National Research Centre, Dokki, Cairo, Egypt.
Bo MengState Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 99 Lincheng West Road, Guanshanhu district, Guiyang, 550081, China. mengbo@vip.skleg.cn.
Al-Azhar University · EGNational Research Centre · EGInstitute of Geochemistry · CNUniversity of Chinese Academy of Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Groundwater represents the primary source of freshwater for more than 35% of world people, and its contamination became a worldwide challenge. Egypt is suffering from water quantity and quality, especially in desert areas. El Obour city and environs Northeast Cairo face waterlogging owing to the elevated-shallow groundwater table. In the present research work, the water quality of the shallow groundwater aquifer was studied. The remediation efficiency of polluted water using photocatalytic treatment technique in the presence of modified nano-titania and solar radiation has also been investigated. Twenty-eight representative samples have been collected from different locations, and their microbial, physical, and chemical characteristics were determined. The average contents of Pb (214.96 µg/L), As (1517 µg/L), Cd (8.79 µg/L), total bacterial count (2.22 × 10

Indexed as

GroundwaterWater Pollutants, ChemicalEgyptEnvironmental MonitoringHumansWater QualityWater Pollutants, ChemicalEgyptHeavy metalsPollutionShallow groundwaterWater quality

Identifiers

PMID33900509
OpenAlexW3158379798

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.