The hazards of metal exposure mediated by crops to human health from perspective of environmental health and control strategies.
Yang H, Zhang F, Zhou J, Zhu J, Cui D
Phytoremediation
Vegetables grown in urban garden beds or near old industrial sites can silently concentrate heavy metals in their roots and leaves, meaning what you harvest may carry a hidden toxic load no amount of washing removes.
When factories, mines, or even certain fertilizers leave heavy metals in soil, food plants absorb those metals through their roots and carry them into the parts we eat. Once we eat those plants, the metals can build up in our bodies and damage kidneys, brains, and DNA over time. Scientists are now combining old-school soil cleanup methods with newer tools like specialized plants that soak up metals and AI systems that track contamination, all to keep that chain from reaching our tables.
Key Findings
Five metals—cadmium, lead, mercury, arsenic, and chromium—each follow distinct soil-to-crop-to-human pathways and cause different organ-specific harms including neurotoxicity, nephrotoxicity, and carcinogenicity.
Plants under heavy metal stress show measurable molecular damage including oxidative injury, disrupted enzymes, and genetic alterations, which can reduce crop quality even before metals reach health-threatening concentrations in edible tissue.
An integrated 'source-process-risk-population' framework combining source control, soil remediation (including phytoremediation and nanomaterials), agronomic adjustments, and AI-based monitoring is proposed as the most effective approach to reduce dietary metal exposure.
chevron_right Technical Summary
Heavy metals like cadmium, lead, mercury, arsenic, and chromium enter our food through contaminated soil, accumulate in crops, and cause serious health problems including kidney damage, nerve damage, and cancer. This review maps the full contamination chain and surveys practical strategies—from soil cleanup to AI-powered monitoring—to break it.
Abstract Preview
Heavy metal pollution, driven by rapid industrialization, urbanization, and agricultural intensification, poses a significant threat to ecosystem security and human health. This review examines soi...
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