Environmental exposure refers to the contact individuals have with various physical, chemical, and biological agents present in their surroundings. This can include pollutants in the air, water, and soil, as well as exposure to harmful substances like pesticides and heavy metals. Such exposures can occur through inhalation, ingestion, or skin contact, potentially leading to health issues. Factors influencing environmental exposure include location, lifestyle, and occupation. For example, people living near industrial areas may face higher risks due to emissions from factories. Understanding these exposures is crucial for assessing risks and implementing measures to protect public health and the environment.