Dietary cadmium exposure, risks to human health and mitigation strategies

Critical Reviews in Environmental Science and Technology, Journal Year: 2022, Volume and Issue: 53(8), P. 939 - 963

Published: July 13, 2022

Cadmium (Cd) is a toxic and carcinogenic pollutant widely distributed in the environment. Dietary intake main source of Cd exposure for nonsmoking population. Assessment dietary provides pathway to predict body burden potential health effects. Kidney has been considered as most sensitive target chronic exposure. Because proportional relationship between accumulation kidney excretion via urine, urinary (UCd) used biomarker Here, we review levels different countries, summarize global food concentrations reported both market basket field surveys, discuss UCd among populations, illustrate associations population-based studies. Recommendations prevention reduction through anthropogenic inputs chain are also proposed. This presents worldwide overview status diet general population well those living contaminated areas, evidence policy makers protect humans from related

Language: Английский

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Iron-modified phosphorus- and silicon-based biochars exhibited various influences on arsenic, cadmium, and lead accumulation in rice and enzyme activities in a paddy soil

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 443, P. 130203 - 130203

Published: Oct. 18, 2022

Language: Английский

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Tide-Triggered Production of Reactive Oxygen Species in Coastal Soils

Environmental Science & Technology, Journal Year: 2022, Volume and Issue: 56(16), P. 11888 - 11896

Published: July 11, 2022

We report an unrecognized, tidal source of reactive oxygen species (ROS). Using a newly developed ROS-trapping gel film, we observed hot spots for ROS generation within ∼2.5 mm coastal surface soil. Kinetic analyses showed rapid production hydroxyl radicals (•OH), superoxide (O2•–), and hydrogen peroxide (H2O2) upon shift from high tide to low tide. The exhibited distinct rhythmic fluctuation. oscillations the redox potential dissolved concentration followed same pattern as •OH production, suggesting alternating oxic–anoxic conditions main geochemical drive production. Nationwide field investigations confirmed widespread sustainable via processes (22.1–117.4 μmol/m2/day), which was 5- 36-fold more efficient than those classical photochemical routes (1.5–7.6 μmol/m2/day). Analyses soil physicochemical properties demonstrated that redox-metastable components such redox-active iron minerals organic matter played key role in storing electrons at shuttling infiltrated Our work sheds light on ubiquitous but previously overlooked ROS, may accelerate carbon metal cycles well pollutant degradation soils.

Language: Английский

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Heavy Metals in Agricultural Soils: Sources, Influencing Factors, and Remediation Strategies

Toxics, Journal Year: 2024, Volume and Issue: 12(1), P. 63 - 63

Published: Jan. 12, 2024

Soil heavy metal pollution is a global environmental challenge, posing significant threats to eco-environment, agricultural development, and human health. In recent years, advanced effective remediation strategies for metal-contaminated soils have developed rapidly, systematical summarization of this progress important. review paper, first, the anthropogenic sources metals in soils, including atmospheric deposition, animal manure, mineral fertilizers, pesticides, are summarized. Second, accumulation crops as influenced by plant characteristics soil factors analyzed. Then, reducing strategies, low-metal cultivar selection/breeding, physiological blocking, water management, amendment evaluated. Finally, phytoremediation terms efficiency applicability discussed. Therefore, provides helpful guidance better selection development control/remediation technologies soils.

Language: Английский

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Effects of Fe oxides and their redox cycling on Cd activity in paddy soils: A review

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 456, P. 131665 - 131665

Published: May 19, 2023

Language: Английский

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Redox Oscillations Activate Thermodynamically Stable Iron Minerals for Enhanced Reactive Oxygen Species Production

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(23), P. 8628 - 8637

Published: May 31, 2023

Reactive oxygen species (ROS) play key roles in driving biogeochemical processes. Recent studies have revealed nonphotochemical electron transfer from redox-active substances (e.g., iron minerals) to as a new route for ROS production. Yet, naturally occurring minerals mainly exist thermodynamically stable forms, restraining their potential Here, we report that tide-induced redox oscillations can activate enhanced •OH production intertidal soils (15.8 ± 0.5 μmol/m2) was found be 5.9-fold more efficient than those supratidal soils. Moreover, incubation of under tidal fluctuations dramatically by 4.3-fold. The hydrology triggered alternation between biotic reduction and abiotic oxidation could accelerate the reactive ferrous ions amorphous ferric oxyhydroxides, making into metastable phases (RAMPs) with reduced crystallinity promoting surface electrochemical activities. Those RAMPs displayed activity Investigations nationwide coastal verified ubiquitously Our study demonstrates effective formation hydrological perturbations, which provides insights natural sources.

Language: Английский

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Soil carbon and nitrogen cycles driven by iron redox: A review

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 918, P. 170660 - 170660

Published: Feb. 6, 2024

Language: Английский

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The relative contributions of root uptake and remobilization to the loading of Cd and As into rice grains: Implications in simultaneously controlling grain Cd and As accumulation using a segmented water management strategy

Environmental Pollution, Journal Year: 2021, Volume and Issue: 293, P. 118497 - 118497

Published: Nov. 13, 2021

Language: Английский

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Arbuscular mycorrhizal fungus regulates cadmium accumulation, migration, transport, and tolerance in Medicago sativa

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 435, P. 129077 - 129077

Published: May 6, 2022

Language: Английский

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Hydroxyl radical formation during oxygen-mediated oxidation of ferrous iron on mineral surface: Dependence on mineral identity

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 434, P. 128861 - 128861

Published: April 5, 2022

Language: Английский

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