Atmospheric chemistry is a multidisciplinary research field with respect to emissions, interactions and physical and chemical transformation of chemical compounds in the atmosphere. It also investigates the key physical processes occurring in the atmosphere. This eBook provides a comprehensive review of this topic showing recent advances in this field e.g., parallelization of mathematical models with CUDA, effect of air pollutants on global climate change. The authors of this book hope that material presented will be useful and essential for bachelor and master students as well as graduate students, and they can use it as a basic source for their studies.