The course studies the major chemical processes occurring in the natural environment and the impacts of human activities on these processes. Topics include introduction of environment and its components, techniques for environmental sample collection and preparation; the sources, reactions, transport, fates of chemical species in atmosphere, water, and soil and their effects on environment, ecosystem and human health. The laboratory portion of this course includes experiments based on the above topics and allows students to have hands-on experience of collecting and analysis water, air and soil samples.