Episode #17
Pesticides in Human Blood: What Do We Actually Know? — Dr Luthando Tiya
What if we're not measuring pesticide exposure properly? Dr Luthando Tiya's research detected trace amounts of pesticides and their metabolites in human blood from farming-intensive areas of the Western Cape. That sounds alarming. But the science is more complicated. Detection does not mean toxicity, and this study does not establish that the people tested have been harmed. What it does is raise important questions about how South Africa monitors human exposure, what happens to pesticides after they enter the body, and what we still don't know about low-dose, long-term exposure. We discuss pesticide metabolites, human biomonitoring, the difficulty of recruiting farms for research, consumer exposure, regulation and the tension between protecting people and maintaining agricultural productivity. Most importantly, we ask the question that matters at the end of any scientific investigation: What can we actually say based on the evidence we have — and what should happen next? Dr Tiya's message isn't to abandon pesticides or agriculture. It is to improve the evidence, monitoring and collaboration needed to protect farmers, workers and communities. #EnhancedPOD #Pesticides #Science #SouthAfrica #Agriculture #HumanHealth
