Arsenic compounds are chemical substances that contain the element arsenic, which is known for its toxicity. These compounds can be found in various forms, such as arsenic trioxide and arsenic sulfide. They are often used in industries like agriculture and electronics, but their harmful effects on health and the environment make them a concern. Exposure to arsenic compounds can lead to serious health issues, including skin lesions, respiratory problems, and even cancer. Because of these risks, many countries have strict regulations on the use and disposal of arsenic-containing materials to protect public health and the environment.