Heavy metal risks: education alone not enough – study warns

A study has revealed that formal education alone is insufficient to address the complex challenges surrounding heavy metal contamination in Ghana’s agricultural systems.

The research examined awareness levels, perceptions, and factors influencing knowledge of heavy metal contamination in rice among farmers and consumers in Ghana.

According to the study, heavy metal contamination in locally produced rice poses potential human health risks; however, public awareness and risk perception remain limited.

The researchers include Prof. Vincent Logah andProf. Bright Owusu Asante of the College of Agriculture and Natural Resources.

Data for the study were collected from 275 rice farmers and 185 consumers across three municipalities (Ejisu, Juaben, and Atwima Nwabiagya ) in the Ashanti Region.

Findings indicate low to moderate awareness among both farmers and consumers regarding heavy metals entering the food chain through agrochemical use.

The study further noted that while formal education contributes to knowledge, it does not automatically translate into adequate risk awareness or behavioural change.

The study also called for a review and update of existing regulations governing heavy metals in agrochemicals and food products, alongside stronger enforcement mechanisms to ensure compliance and safeguard public health.

The researchers recommended strengthening institutional and farmer-level support systems.

“We recommend enhancing farmers’ access to resources and support by establishing programmes that improve access to credit, promote membership in Farmer-Based Organisations (FBOs), and increase the frequency and quality of extension services,” they stated.

The study was published in the Urban Agriculture & Regional Food Systems.