Residents of Beitbridge are raising serious concerns over a mysterious green discoloration in the Limpopo River, fearing that the change signals a potentially hazardous contamination that could threaten public health, aquatic life, and the broader environment. The unusual appearance has sparked alarm across the community, prompting an official investigation by environmental and water management authorities.
The affected stretch of the river flows through Beitbridge, along Zimbabwe’s southern border with South Africa. Locals began noticing the sudden appearance of what appears to be algae or a green chemical pollutant several days ago. The green substance has now reportedly spread over several kilometres of the river’s surface, fuelling suspicions that the contamination originated upstream—possibly outside of Zimbabwe’s borders.
“We have inspected the river and collected samples for testing,” said Decent Ndlovu, the Matabeleland South provincial head of the Environmental Management Agency (EMA). “What we can confirm at this stage is that the pollution does not appear to be coming from within Zimbabwe. Investigations are ongoing, and we expect laboratory results soon.”
In response to growing community concern, Beitbridge District Development Coordinator Sikhangezile Mafu Moyo issued a public advisory urging residents to exercise caution when using river water.
“The Limpopo River has been contaminated by a green substance that poses a potential risk,” Moyo stated. “Technocrats from EMA and local water authorities have traced the green discoloration upstream as far as the Shashe River. The signs suggest that the source of the contamination could be originating from South Africa.”
Though the contamination’s full impact is still being assessed, Moyo sought to reassure residents that Dam 1, which supplies treated municipal water to Beitbridge Urban, remains unaffected. However, she issued a warning about Dam 2 and areas downstream, which are closer to the visibly polluted sections of the river.
“Until we have conclusive test results, we strongly advise residents not to use untreated water directly from the Limpopo River or any connected sources,” Moyo said. “Precautionary measures are essential at this stage.”
The Limpopo River is a vital lifeline in the region, flowing for 1,750 kilometres from near Johannesburg in South Africa, forming parts of the border between Zimbabwe, Botswana, and South Africa, before eventually emptying into the Indian Ocean in Mozambique. It supports agriculture, wildlife, and livelihoods for millions of people across southern Africa. As such, any potential contamination has wide-reaching implications beyond Zimbabwe’s borders.
Beitbridge Residents Alarmed by Green Discolouration in Limpopo River: Fears of Cross-Border Contamination Grow
Images and videos of the green-tinged river have quickly circulated on social media, drawing widespread attention from environmental activists and regional media. The discoloration has triggered calls for a coordinated response among all the countries the river passes through to prevent further ecological damage and protect public health.
Environmental groups have warned that if the green substance is a chemical pollutant or a harmful algal bloom, it could disrupt ecosystems, kill fish and aquatic species, and make water unsafe for human and animal consumption. Some experts suggest it may be linked to industrial or agricultural waste discharged into upstream tributaries of the Limpopo, but no official confirmation has yet been made.
Given the shared nature of the river, environmental agencies in Zimbabwe are expected to engage their South African counterparts in the coming days to coordinate investigations and potential mitigation measures. The Southern African Development Community (SADC) has also been urged to take a more active role in monitoring transboundary water bodies and ensuring environmental compliance across borders.
In the meantime, Beitbridge residents—many of whom rely on the Limpopo River for daily needs such as washing, irrigation, and livestock watering—are being advised to stay vigilant and avoid any contact with the green-colored water until the EMA completes its laboratory analysis.
“This is not just a local issue—it’s a regional one,” said one local environmentalist. “What happens upstream affects everyone downstream. We need cross-border cooperation to solve this before it escalates into a larger environmental crisis.”
Authorities expect test results by the end of the week. Until then, uncertainty looms over the Limpopo’s once-clear waters, and Beitbridge residents remain on high alert.
Source- Bulawayo24
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