Toxicology involves the study of chemical properties and their effects on the body; focuses on the negative effects of chemicals on living organisms that come in contact with them. Toxicology includes the detection, symptoms, pathogenesis, mechanism, and treatment of these chemicals.

Poison is any chemical that is toxic and can cause serious harm to the body.

Toxicological studies and tests for various toxic elements will eventually lead to an improved and more innovative set of therapies that can be used to treat disease after the toxic potential to the human body has been reduced.

Types of Toxicology:

• Analytical Toxicology: Includes the detection and evaluation of toxic chemicals.
• Applied toxicology: Applied toxicology deals with the application of modern technologies for the early detection of toxic substances.
• Clinical Toxicology: Clinical toxicology deals with the diagnosis and treatment of poisons, mainly in humans.
• Veterinary toxicology: it is the study of the diagnosis and treatment of poisons, mainly in animals, and the possibility of their transmission to humans.
• Forensic toxicology: Forensic toxicology deals with the medical investigation of deaths, poisoning and drug use.
• Environmental toxicology: Environmental toxicology is the investigation of the presence of toxic substances in the environment and their effects on humans and animals.

Industrial toxicology: It is a selective area of ​​environmental toxicology.

Factors Affecting Chemical Toxicity:  The aim of toxicological research and testing is to identify the adverse effects of various toxic substances. The side effects depend on two main factors, namely the routes of exposure and the dose, which represents the exposure concentration.