Book Description
The space between stars within galaxies is not empty; it is filled with gas and dust. Polycyclic aromatic hydrocarbons (PAHs) are one of the most complex organic species found in space. Over the past 20 years it has become increasingly clear that we live in a molecular universe: Molecules are directly interwoven into the fabric of the universe.Multiple formation mechanisms are discussed for interstellar PAHs, both in and ex situ. These pertain to molecular clouds and stellar ejecta, for which physical parameters vary largely. In the stellar ejecta of carbon-rich Asymptotic Giant Branch stars, terrestrial-combustion-like chemical reactions are more likely to take place, of which the products can be transported to the interstellar medium (ISM) by interstellar wind.One of the aims of this book is also to extensively discuss PAHs impact on the environment and the magnitude of the human health risks posed by such substances. It also contains important information on concentrations, burdens and fate of polycyclic aromatic hydrocarbons (PAHs) in the atmosphere.This book is designed for students of Astrophysics, Environmental Science, Environmental chemistry, Astronomy enthusiast, Health and safety professional and other professionals who wants to increase or update their knowledge in the area of polycyclic aromatic hydrocarbons and the interstellar space.