Providing that you have constructed your tamales the right way and have given them ample room to steam and expand, it should take between one and two hours for them to steam completely. The cooking time will vary depending on the overall size of the tamales and what ingredients you included in the filling.
A person can come into contact with arsenic in many different ways. Since it is a natural part of the environment, everyone is exposed to small amounts of arsenic. For most people, the largest source of arsenic is in the food we eat. Most foods, including vegetables, fish, and seafood, contain some arsenic. Arsenic in groundwater can enter the body by drinking the water or by eating food cooked in the water. Arsenic does not evaporate into the air and is not easily absorbed through the skin.
What is arsenic? 2. Where does environmental arsenic come from? 3. What are the levels of exposure to arsenic? 4. What happens to arsenic in the body? 5. What are the effects of arsenic on laboratory animals? 6. What are the effects of arsenic on the environment? 7. What are the effects of arsenic on human health? 7.1 Can arsenic cause cancer and skin changes? 7.2 What other health problems can arsenic cause? 7.1 Can arsenic cause cancer and skin changes? Long-term exposure to arsenic in drinking water can cause cancer in the skin, lungs, bladder and kidney.