Evidence map›Paper›PMID 32193734›Full record

ArticleEnvironmental science and pollution research international2020

Contamination and risk levels of metals associated with urban street dust in Riyadh, Saudi Arabia.

Badr H Alharbi, Mohammad J Pasha, Majed D Alotaibi, Abdulilah K Alduwais, Mohammed Ahmad S Al-Shamsi

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Article in Environmental science and pollution research international, 2020. 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.

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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

5 authors.

Badr H AlharbiNational Centre for Environmental Technology (NCET), Life Science & Environment Research Institute (LSERI), King Abdulaziz City for Science & Technology (KACST), 6086 Prince Turky 1st St., Riyadh, 11442, Saudi Arabia.
Mohammad J PashaNational Centre for Environmental Technology (NCET), Life Science & Environment Research Institute (LSERI), King Abdulaziz City for Science & Technology (KACST), 6086 Prince Turky 1st St., Riyadh, 11442, Saudi Arabia.
Majed D AlotaibiNational Centre for Agricultural Technology (NCRT), Life Science & Environment Research Institute (LSERI), King Abdulaziz City for Science & Technology (KACST), Riyadh, Kingdom of Saudi Arabia.
Abdulilah K AlduwaisNational Centre for Environmental Technology (NCET), Life Science & Environment Research Institute (LSERI), King Abdulaziz City for Science & Technology (KACST), 6086 Prince Turky 1st St., Riyadh, 11442, Saudi Arabia.
Mohammed Ahmad S Al-ShamsiNational Centre for Environmental Technology (NCET), Life Science & Environment Research Institute (LSERI), King Abdulaziz City for Science & Technology (KACST), 6086 Prince Turky 1st St., Riyadh, 11442, Saudi Arabia. mshamsi@kacst.edu.sa.

Funding

King Abdulaziz City for Science and Technology Research Project Grant No. 32-594
6 · The paper itself

Abstract

Urban street dust was collected from 22 locations in Riyadh, Saudi Arabia, and nine metals (Pb, Cr, Zn, Co, Cu, Al, Fe, Mn, and Ni) were investigated. The concentrations of these metals were employed in several common contamination evaluation indices to examine the contamination and the health risk caused by metals. Evaluation of these indices showed that they had variable degrees of contamination sensitivity. For individual contaminating elements (Pb, Cr, Zn, Co, Cu, and Ni), the sensitivities of the contamination of contamination factor (CF), the potential ecological risk (Ei), and geo-accumulation index (Igeo) were very similar. Therefore, these indices should yield very similar results. However, enrichment factor (EF) exhibited a different sensitivity pattern for determining the contamination caused by metals compared with the contamination level indicated by the other indices used in this study. Therefore, to avoid potential false indication of contamination, it is not recommended to use EF alone for determining contamination level. As indicated by four contamination evaluation indices (CF, Ei, Igeo, and EF), Riyadh was mainly contaminated by Pb. However, the health risk assessment results revealed that the Pb contamination level did not exceed the significant risk level for non-cancer effects. The cancer risk values indicated a negligible cancer risk to inhabitants of Riyadh exposed to metals associated with street dust. Considering the comprehensive contamination evaluation indices, the ecological risk index (RI) showed that about 77% of the sampling locations featured high ecological risk of which approximately 41% also featured high contamination indicated by pollution load index (PLI).

Indexed as

DustEnvironmental MonitoringEnvironmental PollutionMetals, HeavyRisk AssessmentSaudi ArabiaDustMetals, HeavyEcological and health risk assessmentMetalsRisk indicesSaudi ArabiaUrban street dust

Identifiers

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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.