Warning over 'dirty secret' of toxic chemicals on farmers' fields

According to the article, campaigners have raised concerns about the "dirty secret" of toxic chemicals and microplastics being found in sewage sludge that is being used as fertilizer on farmers' fields. The article states that these contaminants, which include heavy metals, pharmaceuticals, and microplastics, can end up in the soil and potentially enter the food chain. Environmentalists argue that this practice poses a threat to human health and the environment. Proponents of the practice claim that sewage sludge is a valuable source of nutrients for crops, but critics argue that the potential risks outweigh the benefits. The article suggests that more research and regulation may be needed to address this issue and ensure the safety of agricultural practices. Overall, the article highlights the ongoing debate surrounding the use of sewage sludge as a fertilizer and the potential environmental and health concerns associated with this practice.