There has been significant growth in population and urbanization worldwide within the last five decades especially in the developing nations. Despite this, there appears to be imbalance between urban growth and availability of support infrastructures to reduce impacts of urbanization on the environment. One of the consequences of these imbalances is the emergence of accelerated urban air pollution which has become a major concern among inhabitants of urban areas. Hence, this book X-rays the applications of atomic and nuclear techniques as well as receptor models as tools for air pollution monitoring and control at receptor sites. This work will help to shed more light on air quality research and it is highly recommended to science and engineering graduate students, lecturers, researchers, HSE managers,government agencies, environmentalists, as well as anyone else who may be interested for a "cleaner" air.