What question did this study set out to answer?

To evaluate the impact of solid waste disposal on the concentration and distribution of heavy metals in landfill site soils.

Impact of solid waste disposal on heavy metals concentration and distribution in a naturally remediated landfill site

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To evaluate the impact of solid waste disposal on the concentration and distribution of heavy metals in landfill site soils.
Collection of soil samples at 0-20 cm depth from five dumping cells and two non-dumping zones.
Analysis of soil chemical properties and heavy metal concentrations.
Comparison of nutrient concentration and heavy metal levels across different zones.
Lead concentrations exceeded permissible levels across all zones.
Cadmium was below detection in boundaries and wetlands but exceeded limits in cells 1 to 4.
Zinc concentration in cell 5 was 1795 mg kg −1, over 100% higher than other treatments.
Arsenic concentrations remained consistent across all treatments.

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Evaluates heavy metal distribution in landfill soils, highlighting implications for landfill management.

Dlamini et al. (2026) studied this question.

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