Zim Now Writer
The Zambian government has dismissed a US Embassy health alert over ongoing contamination from a February 2025 acid spill, sparking a rare public dispute over environmental safety.
In February, a tailings dam at the Chinese-run Sino Metals Leach Zambia plant in Chambishi, Copperbelt Province, failed. About 50,000 cubic meters of acidic slurry containing heavy metals flowed into nearby waterways, causing severe pH drops and water discoloration. Experts warn such spills can leave toxic residues in soil and sediment for decades.
On August 6, the US Embassy restricted its personnel from visiting the affected area, citing persistent contamination in water, soil, and possibly air.
Zambian officials countered, claiming pH levels are normal and heavy metal concentrations are “steadily decreasing.”
Government spokesperson Cornelius Mweetwa said cleanup measures have “averted immediate danger.”
The dispute raises questions over testing methods, contaminant lists, and differing safety thresholds.
Authorities used lime treatments to neutralise acidity, a standard but partial solution that doesn’t remove heavy metals. Water and Sanitation Minister Collins Nzovu said the government continues remediation, funded by Sino Metals.
The company has issued no independent public statements.
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