نبذه عن الكتاب: When a chemical is introduced into the environment, there is a certain probability that it can move from the point where it was released. The distribution of some compounds has been shown to be global in scope having been detected on mountain peaks and in polar regions. This discovery could involve their use over a broad geographical area or their ability to be transported over large distances. It is possible that problems associated with the widespread distribution of chemicals could have been avoided or at least reduced if the properties of the chemicals influencing their movement had been understood when they were first introduced. However, the recognition of these problems has provided the incentive to define the processes and outline the chemical concepts involved resulting in the development of a new focus of “environmental chemistry”. This field has matured over the past 25 years to the point where predictions can be made concerning the fate and distribution of organic compounds.