Environmental chemicals are substances found in our surroundings that can affect the environment and human health. These chemicals can come from various sources, including industrial processes, agricultural practices, and household products. Common examples include pesticides, heavy metals, and plastic additives. Exposure to environmental chemicals can occur through air, water, soil, and food. Some chemicals may accumulate in the body over time, potentially leading to health issues. Regulatory agencies, such as the Environmental Protection Agency (EPA), monitor and manage the use of these chemicals to protect public health and the environment.