Scientists at the Kwame Nkrumah University of Science and Technology have discovered harmful substances in older mangrove wood.
This wood is often used by fish smokers to cook their catch.
The Department of Wood Science and Technology conducted the investigation.
Their findings show high amounts of cancer-causing agents present in the wood.
These chemicals can transfer to the fish during the smoking process.
This raises concerns about the health of those who consume the smoked fish.
The university researchers have highlighted a potential public health issue.
Further investigation is needed to understand the full extent of the risk.