Evidence map›Paper›PMID 34490537›Full record

ArticleEnvironmental monitoring and assessment2021

Geographic information system-based approach and statistical modeling for assessing nitrate distribution in the Mitidja aquifer, Northern Algeria.

Ali Mansour Lagoun, Souaad Bouzid-Lagha, Nadia Bendjaballah-Lalaoui, Hakim Saibi

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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. An erratum has been issued. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Ali Mansour LagounLaboratory of Environment, Water, Geomechanics and Structures, Faculty of Civil Engineering, University of Science and Technology Houari Boumediene, Postal Box 32, 16004, Alia, Bab Ezzouar, Algiers, EL, Algeria. lagounali@yahoo.fr.ORCID http://orcid.org/0000-0002-9632-3052
Souaad Bouzid-LaghaLaboratory of Environment, Water, Geomechanics and Structures, Faculty of Civil Engineering, University of Science and Technology Houari Boumediene, Postal Box 32, 16004, Alia, Bab Ezzouar, Algiers, EL, Algeria.
Nadia Bendjaballah-LalaouiLaboratory of Catalytic Materials & Catalysis in Organic Chemistry, Faculty of Chemistry, University of Science and Technology Houari Boumediene, Postal Box 32, 16111, Alia, Bab Ezzouar, Algiers, EL, Algeria.
Hakim SaibiDepartment of Geology, College of Science, Emirates University, Al Ain, UAE.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Mitidja alluvial aquifer in northern Algeria is an important drinking, industrial, and agricultural water source. Unfortunately, nitrate contamination has led to a decrease in water quality in several areas that benefit from this source. This study employed geographic information system and statistical modeling methods to evaluate the origin, evolution, and spatiotemporal distribution of groundwater nitrate in the aquifer and investigate the influence of different hydrogeological parameters on its extent. Control points were established across various regions of the Mitidja groundwater aquifer. A total of 1185 nitrate concentrations were measured at 316 sampling points between June 1985 and May 2015. The results showed variable rates, with the 50 mg/L nitrate consumption limit exceeded in 423 samples at 84 observation points. Statistical modeling showed that nitrate concentration was related to groundwater characteristics (aquifer nature, water table depth, and thickness of saturated zone) and human activities (land use, agricultural practices, and population density). Analysis of the nitrate distribution showed that the eastern and western watersheds experienced the greatest contamination. The significant nitrate concentrations in the eastern area were correlated with urban contamination, including uncontrolled urbanization, high population density, and industrial activity, while the primary origin of nitrate in the western area was correlated with agricultural activity, particularly fertilizers. The findings of this study can aid local government and water agencies in the development and implementation of regulations to help mitigate increases in nitrate concentrations.

Indexed as

GroundwaterWater Pollutants, ChemicalAlgeriaEnvironmental MonitoringGeographic Information SystemsHumansNitratesNitratesWater Pollutants, ChemicalGeographic information systemGroundwater pollutionMitidjaNitrateStatistical modeling

Identifiers

PMID34490537

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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.