For every research in every field it needs data. And unfortunately, there are a lot of problems with them, because in some areas, data are not full, in another data have got very short range in another they are not in a free access. But in this book, author collected data of major atmospheric gases (oxygen, nitrogen, argon, carbon dioxide), noble gases (helium, neon, krypton, xenon), and trace gases (hydrogen, methane, nitrous oxide) as a function of temperature, salinity, pressure, and gas composition in a variety of format for different aims and different researches. Moreover, this book can help to understand carbonate chemistry and know about problems and points of interests. The book will be good for chemistry specialties students.