Keep plastics out of our food chain

Plastic pollution has traditionally been viewed as an environmental issue, but recent research is prompting a reassessment of its impact on food safety and public health in Ghana. Scientists from the Council for Scientific and Industrial Research-Water Research Institute (CSIR-WRI) have found microplastics in fish from the Lower Volta Basin and coastal areas along the Gulf of Guinea.

While the study does not suggest that eating fish poses an immediate health risk, it does highlight the need for further investigation into the potential long-term consequences.

The research, led by Senior Research Scientist Dr. Pennante Naa Ayikialey Bruce-Vanderpuije, discovered microplastics in the internal organs and gills of both farmed and wild fish. In some cases, the concentration was high, with a single fish from the Asikuma region containing approximately 365 particles. Researchers suspect that these contaminants may be linked to human activities such as the use of paints and PVC materials in boats and cages, as well as plastic nets and fishmeal.

Ghana is particularly susceptible to this problem, given that fish is a staple in the diet of many Ghanaians. The study estimated that individuals who consume the gills and guts of farmed tilapia could ingest thousands of microplastic particles each year. However, the researchers emphasized that their findings establish exposure levels, not a confirmed health risk. Further research is needed to determine if the current levels of microplastics ingested through fish consumption are causing measurable health issues.

The prudent course of action is to address the existing contamination of water bodies and aquatic food systems. This entails strengthening waste collection and recycling efforts, improving enforcement of environmental regulations, and encouraging the adoption of more sustainable materials in the aquaculture industry. The government, local authorities, environmental agencies, fisheries authorities, manufacturers, and communities all have a role to play in preventing plastic waste from reaching water sources.

In addition to these efforts, it is crucial to invest in local research to gain a more comprehensive understanding of the presence of microplastics in fish, drinking water, and other foods, as well as the potential long-term health effects. The situation demands decisive action to keep plastics out of our rivers, lagoons, lakes, and seas, not only to safeguard aquatic ecosystems but also to protect the food supply for the Ghanaian population.