Pollution is an environmental concern for people throughout the world, which pollutants in the water, air, and soil cause the premature deaths. First, water pollution is contaminated with toxic chemicals, also known as toxins are caused by contaminated water. Next, air pollution is a growing problem throughout the world, which indoor air pollution is one of the leading causes of lung cancer and outdoor pollution also causes disease and illness. And finally, soil pollution is also a major concern, both in industrial and developing countries which pollutants such as metals and pesticides seep into the earth's soil and contaminate the food supply soil pollution causes major health risks to entire ecosystems contributes to global food shortages.