Arsenic toxicity is a research area that focuses on the health effects of exposure to arsenic, a naturally occurring element in the earth's crust. Arsenic can be found in water, soil, and air, and exposure to high levels of arsenic can lead to a variety of health problems, including skin lesions, cardiovascular disease, respiratory issues, and various types of cancer. Researchers in the field of arsenic toxicity study the mechanisms by which arsenic enters the body, how it is metabolized, and its toxic effects on various organs and systems. They also investigate ways to mitigate arsenic exposure and develop strategies for treating individuals who have been exposed to high levels of arsenic. Overall, the goal of research in this area is to better understand the health risks associated with arsenic exposure and inform public health policies and interventions to protect individuals from the harmful effects of arsenic.