What are the 2 Groups of all contaminants?

Contaminants are typically categorized into two main groups: biological contaminants and chemical contaminants. Biological contaminants include pathogens like bacteria, viruses, and parasites, which can cause diseases. Chemical contaminants encompass a wide range of harmful substances, such as heavy metals, pesticides, and industrial chemicals, which can pose health risks through exposure. Both groups can significantly impact human health and the environment.