ABSTRACT
The techniques employed for air analysis are much different from those used to analyze either the aqueous or the solid samples. The most important part of air analysis is what is known as "air sampling", which involves techniques to trap or collect the organic or inorganic pollutants from the air. Analysis of air, whether indoor or outdoor air, primarily consists of three steps: sampling of the air, chemical analysis of the sampled air, and quality assurance to ensure the precision and accuracy of the measurement. Sampling for outdoor air requires a proper sampling plan that includes the selection of proper sites for sampling based on weather conditions, topography, and other factors. Air sampling involves collecting a measured volume of air for chemical analysis. This is done in two ways: collecting the air from the site in a container or trapping the pollutants by passing a measured volume of air through a filter, an adsorbent, or absorbing solution.
