The focus of environmental chemistry is the study of chemical processes occurring in the environment and the impact of human activities on natural systems. This field examines pollutants, their interactions with ecosystems, and the chemical transformations affecting air, water, and soil quality. Environmental chemists analyze the fate and transport of chemicals, including heavy metals and organic compounds, to assess their risks to human health and ecosystems. Understanding these processes helps develop strategies to mitigate pollution, promote sustainability, and enhance environmental protection.