A new criterion for the health risk assessment of Se and Pb exposure to residents near a smelter

Zhou, Jun; Du, Buyun; Hu, Yuanmei; Liang, Jiaping; Liu, Hailong; Fan, Xingjun; Zhang, Ligan; Cui, Hongbiao; Liu, Xiaoli; Zhou, Jing

doi:10.1016/j.envpol.2018.10.038

Cited by 27 publications

(5 citation statements)

References 50 publications

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“…Since the termination of leaded petrol phase, tyre loss emissions has been identified as a large contributor of Pb in road dust [ 58 ]. Despite restrictions on use of leaded gasoline, it continues to be an environmental health risk for at-risk populations (e.g., children) [ 59 ]. Since 2005 leaded petrol has been banned in Pakistan, but illegal intrusion of leaded petrol in Pakistan from neighboring countries has been regarded as one of the major cause of high concentration of Pb in road dust [ 23 ].…”

Section: Resultsmentioning

confidence: 99%

Health Risk Assessment of Heavy Metals Accumulated on PM2.5 Fractioned Road Dust from Two Cities of Pakistan

Moryani

Kong

et al. 2020

IJERPH

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The aim of this study is to identify and investigate levels of toxic heavy metals in PM2.5 fractioned road dust to better understand the associated inhalation risk and potential health impacts. To achieve this aim, concentrations of seven traffic generated heavy metals (Cu, Pb, Zn, Cd, Ni, Sb, and Cr) were determined in the PM2.5 fraction of road dust samples from four different locations (offices, residential, hospital, and school) in two cities (Karachi and Shikarpur) of Pakistan using ICP-MS. The average concentration values of heavy metals in Karachi were as follows: 332.9 mg/kg Cu, 426.6 mg/kg Pb, 4254.4 mg/kg Zn, 62.3 mg/kg Cd, 389.7 mg/kg Ni, 70.4 mg/kg Sb, 148.1 mg/kg Cr, whereas the average concentration values of heavy metals in Shikarpur were 245.8 mg/kg Cu, 538.4 mg/kg Pb, 8351.0 mg/kg Zn, 57.6 mg/kg Cd, 131.7 mg/kg Ni, 314.5 mg/kg Sb, 346.6 mg/kg Cr. The pollution level was assessed through two pollution indices enrichment factor (EF) and geoaccumulation index (Igeo). These indices showed moderate to extreme level pollution in studied areas of both cities. The health risk assessment through inhalation contact was conducted according to the United States Environmental Protection Agency’s (USEPA) model for children and adults. Both non-cancerous and cancerous risks were characterised in the road dust samples for each location. As yet, there is not a single study on the concentrations of heavy metals in PM2.5 fractions of road dust in Karachi and Shikarpur, findings of this research will facilitate researchers for further investigations in current field.

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Section: Resultsmentioning

confidence: 99%

Health Risk Assessment of Heavy Metals Accumulated on PM2.5 Fractioned Road Dust from Two Cities of Pakistan

Moryani

Kong

et al. 2020

IJERPH

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“…In industrialized countries, the presence of high concentrations of metals in plants cultivated in areas associated with industrial activities has been demonstrated (Gan et al 2017, Li et al 2019, Zhou et al 2019. Some studies have been conducted in Ecuador concerning the concentration of toxic metals in areas associated with petroleum activities (Barraza et al 2018) and in economically important fruits like cacao (Chavez et al 2015, Barraza et al 2017, Argüello et al 2019) and banana (Romero-Estévez et al 2019).…”

Section: Trophic Transfer Factor Of Lead and Cadmiummentioning

confidence: 99%

Dietary intake and trophic transfer of cadmium and lead from three daily consumption vegetables in Quito, Ecuador

Vela,

Simbaña-Farinango,

Navarrete

et al. 2023

Rev. Int. Contam. Ambie.

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The presence of toxic metals in vegetables of daily consumption is a concern for human health. Little is known about the concentration of toxic metals in vegetables sold in markets in Quito, Ecuador, and the corresponding risk to the population. This study aimed to measure the concentration of cadmium (Cd), and lead (Pb) in tomatoes, carrots, and lettuce, to estimate the risk for human health, and to determine the trophic transfer factor using Drosophila melanogaster flies. Vegetable samples were obtained from four local markets in Quito to measure the concentration of Cd and Pb (expressed in mg/kg of dry weight) in the vegetables by microwave-assisted acid digestion and atomic absorption spectrophotometry. Drosophila melanogaster flies were fed with contaminated vegetables to determine de trophic transfer factor of metals in the trophic chain. Our results showed the highest accumulation of Pb and Cd occurred in lettuce. In all cases, the Pb and Cd concentrations exceeded the maximum levels established by the Food and Agriculture Organization. However, the daily intake of metals and the health risk index showed no risk from daily consumption. Pb’s trophic transfer factor was excessively high in the tomato-fed flies, showing transference and accumulation in the flies. Cadmium concentration in tomato-fed flies was also the highest among the three vegetables. The trophic chain transfer of toxic metals from vegetables to Drosophila has been observed through a high accumulation of these metals in flies, and this suggests a negative impact on both human health and ecosystems.

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“…Pb(II) and Cd(II) are considered to be the most common heavy metals in industrial applications, and they widely coexist in mining, smelting, and industrial processes, such as pipes, paints, chemical fertilizers, and pesticide production. , Pb(II) poisoning can lead to human neurodegeneration as well as reproductive, cardiovascular, immune, and kidney diseases . Long-term exposure to Cd(II) also threatens reproductive health, embryonic development of humans, and even causes cancer .…”

Section: Introductionmentioning

confidence: 99%

Fe Crystalline Phases in Fe/C Composites Modulated the Selective Adsorption of Pb(II) from Industrial Wastewater with Cd(II): An Electronic-Scale Perspective

Zhao,

Wang,

Xiao

et al. 2024

Inorg. Chem.

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Fe oxide or Fe 0 -based materials display weak removal capacity for Pb(II), especially in the presence of Cd(II), and the electronic-scale mechanisms are not reported. In this study, Fe 3 C(220) modified black carbon (BC) [Fe 3 C(220)@BC] with high adsorption and selectivity for Pb(II) from industrial wastewater with Cd(II) was developed. The quantitative experiment suggested that Fe species accounted for 80.5−100 and 18.4−33.8% of Pb(II) and Cd(II) removal, respectively. Based on X-ray absorption near-edge structure analysis, 57.3% of adsorbed Pb 2+ was reduced to Pb 0 ; however, 61.6% of Cd 2+ existed on Fe 3 C@BC. Density functional theory simulation unraveled that Cd(II) adsorption was attributed to the cation−π interaction with BC, whereas that of Pb(II) was ascribed to the stronger interactions with different Fe phases following the order: Fe 3 C(220) > Fe 0 (110) > Fe 3 O 4 (311). Crystal orbital bond index and Hamilton population analyses were innovatively applied in the adsorption system and displayed a unique discovery: the stronger Pb(II) adsorption on Fe phases was mediated by a combination of covalent and ionic bonding, whereas ionic bonding was mainly accounted for Cd(II) adsorption. These findings open a new chapter in understanding the functions of different Fe phases in mediating the fate and transport of heavy metals in both natural and engineered systems.

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A new criterion for the health risk assessment of Se and Pb exposure to residents near a smelter

Cited by 27 publications

References 50 publications

Health Risk Assessment of Heavy Metals Accumulated on PM2.5 Fractioned Road Dust from Two Cities of Pakistan

Health Risk Assessment of Heavy Metals Accumulated on PM2.5 Fractioned Road Dust from Two Cities of Pakistan

Dietary intake and trophic transfer of cadmium and lead from three daily consumption vegetables in Quito, Ecuador

Fe Crystalline Phases in Fe/C Composites Modulated the Selective Adsorption of Pb(II) from Industrial Wastewater with Cd(II): An Electronic-Scale Perspective

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