Source, Spatial Distribution and Pollution Assessment of Pb, Zn, Cu, and Pb, Isotopes in urban soils of Ahvaz City, a semi-arid metropolis in southwest Iran

Nazarpour, Ahad; Watts, Michael J.; Madhani, Ayoub; Elahi, S Abd

doi:10.1038/s41598-019-41787-w

Cited by 74 publications

(27 citation statements)

References 77 publications

(86 reference statements)

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“…Isotope fingerprints show great potential to source tracing in the environment and has recently been used for many purposes (Aebischer et al, 2015;Araújo et al, 2016Araújo et al, , 2018Araújo et al, , 2019Gelly et al, 2019;Nazarpour et al, 2019). The main advantage in the combination of stable (C, O, Zn, Cu, and Fe) and radiogenic (Pb, Sr, and Nd) isotopes is found on the improvement of the source discrimination resolution.…”

Section: Introductionmentioning

confidence: 99%

Improving Source Apportionment of Urban Aerosol Using Multi-Isotopic Fingerprints (MIF) and Positive Matrix Factorization (PMF): Cross-Validation and New Insights

Souto-Oliveira

Kamigauti

Andrade

et al. 2021

Front. Environ. Sci.

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Urban air pollution is a matter of concern due to its health hazards and the continuous population growth exposed to it at different urban areas worldwide. Nowadays, more than 55% of the world population live in urban areas. One of the main challenges to guide pollution control policies is related to pollutant source assessment. In this line, U.S. Environmental Protection Agency's Positive Matrix Factorization (EPA-PMF) has been extensively employed worldwide as a reference model for quantification of source contributions. However, EPA-PMF presents issues associated to source identification and discrimination due to the collinearities among the source tracers. Multi-Isotopic Fingerprints (MIF) have demonstrated good resolution for source discrimination, since urban sources are characterized by specific isotopic signatures. Source quantification based on total aerosol mass is the main limitation of MIF. This study reports strategies for PMF and MIF combination to improve source identification/discrimination and its quantification in urban areas. We have three main findings: (1) cross-validation of PMF source identification based on Pb and Zn isotopic fingerprints, (2) source apportionment in the MIF model for total PM mass, and (3) new insights into potential Zn isotopic signatures of biomass burning and secondary aerosol. We support future studies on the improvement of isotopic fingerprints database of sources based on diverse elements or compounds to boost advances of MIF model applications in atmospheric sciences.

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Section: Introductionmentioning

confidence: 99%

Improving Source Apportionment of Urban Aerosol Using Multi-Isotopic Fingerprints (MIF) and Positive Matrix Factorization (PMF): Cross-Validation and New Insights

Souto-Oliveira

Kamigauti

Andrade

et al. 2021

Front. Environ. Sci.

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“…Lead has a large spectrum of physical effects, such as neurological and gastro-intestinal distress and oncogenic effects [11]. This metal is a neurotoxin that can affect almost every organ or system in the human body, including bones, teeth, kidneys, and reproductive system.…”

Section: Introductionmentioning

confidence: 99%

Lead and Cadmium Contaminations in Fruits and Vegetables, and Arsenic in Rice: A Cross Sectional Study on Risk Assessment in Iran

Tajik

Alimoradian

Shamsi

et al. 2021

IJT

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Background: High levels of heavy metals in food are general concerns including carcinogenic effects. According to studies, the accumulation of heavy metals in crops and consumption of these products in diet, has led to serious health concerns. This study investigated the concentrations of lead and cadmium in popular agricultural products. Methods: In this descriptive study, some fresh agricultural products (leafy vegetables, tubers, cucurbits and seeds) were collected in the winter and summer. The samples were transferred to the laboratory and stored in a cold room. After the preparation of the samples, the lead and cadmium contents were determined by atomic absorption spectrometry. The data were analyzed statistically on SPSS v. 26 software. Results: The average concentrations of lead and cadmium in the winter was 37.23±4.7 and 34.77±0.5 while they were 44.12±0.02 and 56.83±0.01 μg/g in the summer. The highest amount of led content was reported in spinach at an average of 71.25 μg/g and the lowest content was found in watermelon at 30.67 μg/g. We observed a significant rise in the concentrations of the pollutants in leafy vegetables during the summer, which was also linked to the farms’ locations (P<0.05). Conclusion: The results showed that the highest amount of lead accumulation was found in leafy vegetables and that of the cadmium was at permissible levels in all produces as recommended by WHO. The risk of non-cancerous diseases was also low. Future studied are warranted to assess the risk of heavy metal toxicity in people, especially in children, the elderly and pregnant women.

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“…Nowadays, soil contamination attributed mainly to intense industrialization, urbanization and transport is becoming a global issue [ 1 , 2 , 3 , 4 ]. Soil pollution by potentially toxic elements represents one of the problems for the sustainable development of urban areas.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Evaluation of Metal Pollution in Urban Soils of a Post-Industrial City—A Case of Łódź, Poland

et al. 2020

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The pollution of urban soils by metals is a global problem. Prolonged exposure of habitants who are in contact with metals retained in soil poses a health risk. This particularly applies to industrialized cities with developed transport networks. The aim of the study was to determine the content and spatial distribution of mobile metal fractions in soils of the city of Łódź and to identify their load and sources. Multivariate statistical analysis (principal component analysis (PCA), cluster analysis (CA)), combined with GIS, were used to make a comprehensive evaluation of the soil contamination. Hot-spots and differences between urban and suburban areas were also investigated. Metals were determined by atomic absorption spectrometry (AAS) after soil extraction with 1 mol L−1 HCl. In most sites, the metal content changes in the following order: Zn > Pb > Cu > Ni > Cd. About one-third of the samples are considerably (or very highly) contaminated, (contamination factor, CF > 3) with Cu, Pb, or Zn. In almost 40% of the samples, contaminated soils were found (pollution load index, PLI > 1). All metals have a strong influence on the first principal component (PC1), whereas second principal component (PC2) is related to pH. Polluted soils are located in the downtown, in the south and east part of the city. The distribution of contamination coincides with the urban layout, low emission sources and former industrial areas of Łódź.

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Source, Spatial Distribution and Pollution Assessment of Pb, Zn, Cu, and Pb, Isotopes in urban soils of Ahvaz City, a semi-arid metropolis in southwest Iran

Cited by 74 publications

References 77 publications

Improving Source Apportionment of Urban Aerosol Using Multi-Isotopic Fingerprints (MIF) and Positive Matrix Factorization (PMF): Cross-Validation and New Insights

Improving Source Apportionment of Urban Aerosol Using Multi-Isotopic Fingerprints (MIF) and Positive Matrix Factorization (PMF): Cross-Validation and New Insights

Lead and Cadmium Contaminations in Fruits and Vegetables, and Arsenic in Rice: A Cross Sectional Study on Risk Assessment in Iran

Comprehensive Evaluation of Metal Pollution in Urban Soils of a Post-Industrial City—A Case of Łódź, Poland

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