The Canadian Food Inspection Agency (CFIA) conducted a study from 2021 to 2023 to investigate the presence of certain harmful substances in various food products. The study analyzed 275 samples of fermented soy products and cooking wine for ethyl carbamate (EC), with 34% of the samples testing positive, ranging from trace amounts to 824ug/kg, with tofu samples having the highest levels. Additionally, 748 samples of food items such as baked goods, infant food, and noodles were tested for furan, 2-methylfuran, and 3-methylfuran from 2021 to 2023. Furan was found in 86% of the samples, with the highest average concentration in baked goods, and most samples contained all three compounds. You can find more detailed information at the provided CFIA links.