Human health risk assessment of heavy metals in soil and food crops in the Pearl River Delta urban agglomeration of China

Zheng, Shunan; Wang, Qi; Yuan, Yuzhi; Sun, Weimin

doi:10.1016/j.foodchem.2020.126213

Cited by 205 publications

(77 citation statements)

References 26 publications

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“…As for the contribution of each element for the THI and TCR, the HQ values of the calculated eight heavy metals for both adults and children were ranked as: Cr > As > Cu > Hg > Zn > Pb > Cd > Ni ( Table 2). The numerical results were basically consistent with the research of Zheng et al [53]. The estimated HQ values of the measured 8 heavy metals through all exposed pathways were less than 1.0 for adults.…”

Section: Plos Onesupporting

confidence: 90%

“…The spatial distributions of HQ and CR of all interpolated heavy metals were similar for both adults and children. The highest HQ and CR values were distributed in the southeast regions of the study area (Figs 6 and 7), indicating that people living in the southeast were more likely to be exposed to potential health risks [53]. The HQ values of Cr and As greater than 1.0 were distributed in a small region and most regions of the study area for adults and children, respectively (Fig 6).…”

Section: Plos Onementioning

confidence: 94%

“…Previous studies suggested that more attentions should be paid to children due to their higher sensitivity to heavy metal exposure than that of adults [52]. Zheng indicated that potential high health risk caused by Cd ingestion from Cd polluted leaf and root vegetable consumption was primarily concentrated in parts of Huizhou [53]. However, detail investigation of spatial distribution, pollution and human health risk assessment of heavy metal in agricultural soil for Guangzhou-Foshan urban zone was limited.…”

Section: Introductionmentioning

confidence: 99%

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Spatial distribution, pollution, and health risk assessment of heavy metal in agricultural surface soil for the Guangzhou-Foshan urban zone, South China

Guo

et al. 2020

PLoS ONE

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During the past decades, heavy metal pollution in agricultural soil and its impact on human health have been becoming one of the most important global environmental problems. In this research, heavy metal (Cu, Pb, Zn, Cr, Cd, Ni, As, Hg) concentrations were measured for four hundred and two soil samples collected from agricultural area within the Guangzhou-Foshan urban zone. Soil heavy metal pollution was evaluated used geoaccumulation index and potential ecological risk index. The dose response model proposed by the USEPA was used to estimate the potential health risk caused by heavy metals in agricultural soil. The results showed that: 1) Cd and Hg were the main heavy metal pollutants in agricultural soil of the study area. 89.1% and 93.3% of total soil samples suffered medium to heavy potential ecological risk caused by Cd and Hg, respectively. 2) The THI and TCR were respectively greater than 1.0 and 1.0×10 −4 , indicating that heavy metals in agricultural soil were likely to constitute non-carcinogenic and carcinogenic risks, both of which were mainly brought by product consumption, to the public in the study area. The non-carcinogenic risks were mainly caused by Cr and As, while the carcinogenic risks were mainly from Cr, Cd, and As.

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Section: Plos Onesupporting

confidence: 90%

Section: Plos Onementioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Spatial distribution, pollution, and health risk assessment of heavy metal in agricultural surface soil for the Guangzhou-Foshan urban zone, South China

Guo

et al. 2020

PLoS ONE

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“…Worldwide, more than 420,000 people die each year after eating contaminated food, and one from ten people get sick. Consumption of contaminated food can cause more than 200 risks of acute and chronic diseases, from digestive infections to cancer [95]. Numerous studies have shown that heavy metals exert dangerous effects on human health, causing cancer, damage to the nervous system, blood composition [96][97][98].…”

Section: Potential Risks For Human Healthmentioning

confidence: 99%

Heavy Metal Contamination of Medicinal Plants and Potential Implications on Human Health

Asiminicesei¹,

Vasilachi²

2020

Rev. Chim.

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This survey focuses on the problem of medicinal plants contamination due to environmental pollution produced by many different industrial activities and atmospheric deposition of some toxic compounds. This analysis is important since plants can easily absorb organic and inorganic compounds from all environmental compartments (water, soil, air), which can enter and be transferred in the trophic chain, up to humans. Medicinal plants are relevant for study in relation with their interactions with different contaminants, in particular those inorganic persistent as heavy metals, because they are used in entire world for their beneficial properties, and represent a significant part of traditional medicine. According to World Health Organization (WHO), 65-80% of world`s population depends on herbal products as the primary form of health care. Frequent use of medicinal plants to improve health, in the context of current pollution, requires special attention, since they can contain heavy metals in their structures, which can generate hazards and risks on human health throughout the subsequent consumption of contaminated medicinal plants as teas, other drinks, cosmetics.

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“…The environmental water pollution due to the occupancy of upraised concentrations of a wide diversity of pollutants such as dyes, antibiotics, organic compounds, and heavy metal ions has been extensively reported in different parts of developed and developing nations in recent decades [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. Global industrialization and the untreated discharge of wastewater into natural water sources are among the core reasons for severe water pollution [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Aminophosphonic Acid Functionalized Cellulose Nanofibers for Efficient Extraction of Trace Metal Ions

et al. 2020

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Cellulose nanofibers were covalently functionalized using diethylenetriamine penta (methylene phosphonic acid) and studied for the extraction of heavy metal ions. The surface-functionalized nanofibers showed a high adsorption capacity towards heavy metal ions as compared to bare nanofibers. The elemental composition and surface morphology of the prepared bio-adsorbent was characterized by X-ray photoelectron spectroscopy, attenuated total reflectance infrared spectroscopy, field emission scanning electron microscopy, and energy dispersive spectroscopy. The prepared material was studied to develop a column-based solid phase extraction method for the preconcentration of trace metal ions and their determination by inductively coupled plasma optical emission spectroscopy. The batch experimental data was well fitted to Langmuir adsorption isotherms (R2 > 0.99) and follows pseudo-second-order kinetics. The experimental variables such as sample pH, equilibrium time, column breakthrough, sorption flow rate, the effect of coexisting ions, and eluent type were systematically studied and optimized accordingly. The detection limit of the proposed method was found to be 0.03, 0.05, and 0.04 µg L−1 for Cu(II), Pb(II), and Cd(II), respectively. Certified Reference Materials were analyzed to validate the proposed method against systematic and constant errors. At a 95% confidence level, the Student’s t-test values were less than the critical Student’s t value (4.302). The developed method was successfully employed for the preconcentration and determination of trace metal ions from real water samples such as river water and industrial effluent.

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Human health risk assessment of heavy metals in soil and food crops in the Pearl River Delta urban agglomeration of China

Cited by 205 publications

References 26 publications

Spatial distribution, pollution, and health risk assessment of heavy metal in agricultural surface soil for the Guangzhou-Foshan urban zone, South China

Spatial distribution, pollution, and health risk assessment of heavy metal in agricultural surface soil for the Guangzhou-Foshan urban zone, South China

Heavy Metal Contamination of Medicinal Plants and Potential Implications on Human Health

Aminophosphonic Acid Functionalized Cellulose Nanofibers for Efficient Extraction of Trace Metal Ions

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