Environmental exposures refer to the various substances and conditions in our surroundings that can affect human health. These can include air pollution, water contaminants, chemicals in food, and even noise. People may encounter these exposures at home, work, or in their communities, and they can come from natural sources or human activities. Understanding environmental exposures is important because they can lead to health issues such as respiratory problems, allergies, and other chronic diseases. Monitoring and reducing these exposures can help improve public health and promote a cleaner, safer environment for everyone, including vulnerable populations like children and the elderly.