Chemical oceanography is the study of the chemical composition and properties of ocean waters. It examines how various substances, such as salts, gases, and nutrients, interact within the marine environment. This field helps scientists understand processes like ocean circulation, the carbon cycle, and the impact of human activities on ocean chemistry. Researchers in chemical oceanography also investigate how pollutants, such as plastics and heavy metals, affect marine ecosystems. By analyzing water samples and studying chemical reactions, they can assess the health of oceans and contribute to conservation efforts. This knowledge is crucial for managing resources and protecting marine life.