UNESCO-Linked NGO Warns Microplastics Are Contaminating Africa's Coastal Waters

June 12, 2026 3 min read

A Nairobi-based environmental organisation with ties to UNESCO has issued a stark warning that microplastics are spreading rapidly through Africa's coastal waters, threatening marine ecosystems and the fishing communities that depend on them.

NGO Releases Comprehensive Assessment

The organization, which operates under the UNESCO Associated Schools Network, published its findings this week after a two-year study covering twelve African coastal nations. The assessment documented microplastic contamination in water samples from Ghana to Mozambique, with concentrations rising sharply in areas near major urban centres.

Local fishermen in coastal communities have reported noticing changes in their catches. "The fish look healthy, but something is wrong inside," said Kwame Asante, a fisherman from Elmina in Ghana. "Some of our nets come back with strange residue we have never seen before."

Scale of the Crisis

According to the report, an estimated 5 million tonnes of plastic enter Africa's ocean environments annually, with a significant portion breaking down into microplastics measuring less than five millimetres. The organisation warned that these particles are entering the food chain at multiple levels, from plankton to larger predatory fish.

Health Implications for Coastal Populations

For the millions of Africans living along the coast, the implications are serious. Fishing provides income and protein for communities stretching from Senegal to South Africa. The organisation's report noted that microplastics have been detected in fish sold in local markets, though research on human health impacts remains ongoing.

The government of Kenya, which hosts several major port cities, has begun discussions with environmental agencies about monitoring programmes. Officials in Lagos, Nigeria, have also expressed concern about contamination levels in the Gulf of Guinea.

Sources of Contamination

The report identified several key sources of microplastic pollution. Urban wastewater systems in major cities discharge significant amounts of plastic fibres from synthetic clothing and microbeads from personal care products. Industrial facilities along coastlines contribute additional waste, while fishing gear abandoned at sea gradually breaks down into smaller particles.

Rivers serve as major conduits, carrying plastic waste from inland areas to the coast. The Congo, Niger, and Nile rivers all funnel pollution toward the Atlantic and Mediterranean, according to the assessment.

Regional Response Efforts

The organisation is calling on African governments to adopt stricter regulations on single-use plastics and to invest in waste management infrastructure. Several nations, including Rwanda and Kenya, already have bans on plastic bags, but the report argues that broader measures are needed.

Community groups along the coast have begun organising cleanup operations. In Lagos, youth volunteers have collected more than 200 tonnes of waste from beaches over the past year, though organizers say the effort barely makes a dent in the overall problem.

What Comes Next

The organisation plans to present its findings to the African Union's environmental committee next month. It is also seeking partnerships with regional governments to establish a monitoring network across major coastal areas. The goal is to create a clearer picture of contamination levels and track whether intervention efforts are making a difference.

For now, coastal communities are left to adapt. Fishermen like those in Elmina continue their work, aware that the waters they have relied on for generations are changing in ways they do not fully understand. The organisation's report makes clear that without significant action, the problem will only worsen as more plastic enters the system and breaks down into particles that are nearly impossible to remove.