Popis: |
The growing concern about our environment has led to a demand for methods and equipment which can perform a wide variety of monitoring tasks. The detection of specific molecules in the atmosphere may be motivated by the need for monitoring the emission of toxic chemicals used by industry, or by the need to perform a general control of the air we breathe, in particular in areas which are subject to large scale emission caused by human activities, such as traffic, livestock breeding, and energy production. In addition, it may be motivated by the need to get a better understanding of global trends in the concentration of molecules which are of importance in connection with the greenhouse effect and ozone destruction in the stratosphere, or it may simply be necessary in order to get a deeper insight into the huge number of physical and chemical processes which occur in the atmosphere, and which act together to produce what we commonly denote as weather and climate. |