It is important to remember that pesticides have other harmful effects outside the crop area. Non-target organisms can be harmed or killed. For example, farm workers who work with pesticides can have health problems, especially if they do not have enough protection and training. Rain the underground water table and careless container disposal can cause pesticides to travel far and contaminate soil and water sources. As a result, fish in nearby rivers may die, and soil in nearby fields may be contaminated.