In this book, it is considering several recent advances and applications in computational chemistry. The concentration is designed to stimulate intellectual curiosity, to instruct students in logical reasoning, and to provide students with the knowledge and skills in Environmental Chemistry qualifying them to enter industry or to continue their education leading to advanced degrees. A firm foundation in chemistry is provided with an emphasis on organic and analytical chemistry. This book explains the environmental behaviour and toxicological effects of mercury on humans and other organisms, and provides a baseline for what is known and what uncertainties remain in respect to mercury cycling. Research in biological sciences and chemistry has revealed that industrial processes in chemistry and petrochemistry could play a role in developing solutions to environmental problems such as climate change, waste management, recycling, energy efficiency – just to name a few. Recent research has concluded that one in six women of childbearing age have unsafe levels of mercury in their bodies, which puts 630,000 newborn babies each year at risk of neurological impairment. Mercury poses severe risks to the health of animals and ecosystems around the world, and this book provides the essential information that anyone interested in environmental sciences should know about the fundamentals of the entire mercury cycle. Environmental issues such as climate change, water pollution and renewable energy make the news headlines and have become increasingly important in every day life. Many people perceive chemistry and the chemical industry as harmful to the environment. Hailey Ambrose, PhD, is internationally renowned Research Scientist in the Department of Chemistry and Biochemistry, where he manages the Mercury Laboratory. Dr Ambrose is a full member of the Phytochemical Society of Federation of Biotechnology. He serves as an Editorial Board Member in a reputed Journal.