Back to profile Contact person for... - dr.ir. LAP (Ron) Hoogenboom Pages Effects of substances on humans and animals Wageningen Food Safety Research studies the possible effects of substances and ingredients in foods to assess whether they are safe. Unknown source The source of a contamination in food is not always known. To prevent further spread of contamination, it is important to identify the source quickly. Unknown substances Of most substances the composition of modules is known and with the right analysis we can detect them. But what about substances that are not known? Dioxin analysis Dioxin analysis - WUR Dioxin analysis Dioxins are extremely toxic chemical substances which can be transmitted from the environment into our food.... Contaminants Wageningen Food Safety Research's chemical contamination research can be divided into two categories: contaminants and veterinary drugs.