Environmental chemistry is a scientific discipline that investigates the chemical processes and substances present in natural media, including air, water, and soil. Its scope encompasses the study of biogeochemical cycles, such as the nitrogen and carbon cycles, and the transformation and fate of various chemical contaminants within these systems. This field involves identifying and quantifying pollutants, understanding how they migrate through environmental compartments, and determining the mechanisms by which they degrade or accumulate. Researchers utilize techniques ranging from atmospheric sampling to hydrological analysis to model pollutant transport and predict chemical changes, aiming to develop methods for remediation and understanding the chemical equilibrium of natural ecosystems.