Arsenic is a natural substance that is widely distributed in the earth's crust. Chemically, arsenic is included in the heavy metal group. Even if natural, arsenic can cause various diseases if the body is exposed for a long time by these chemicals. Arsenic can be found in water, air, food, and soil. There are two types of arsenic, namely organic arsenic and inorganic arsenic. Organic arsenic is most often used as a raw material for making insecticides or eradicating pests and herbicides (weed killers). This organic arsenic is usually not toxic to humans, unless exposed to large amounts. Meanwhile, inorganic arsenic in low levels contained in soil, copper, tin ore, and water. This type of arsenic is far more dangerous compared to organic arsenic. Arsenic can be found in ground water, pesticides, wood preservatives, tobacco, volcanic eruptions, to the results of the mining process. Arsenic can also be found in foods, such as rice and fish, because of absorption from soil and wate