ABSTRACT

Studies of community air pollution problems can use one of a number of different approaches and each has evolved substantially over the past 25 years. Early activities in community air sampling used very simple tools, including the dustfail bucket, and collected data primarily in specific geographic-population centers. The location studied could include: a rural center, a small town or a city, a suburb of a large urban center, or a selected portion of a city. In each case one or more fixed monitoring stations were usually placed at selected locations and these comprised a sampling program. This form of community air sampling grew from the use of simple manual monitoring techniques, such as the high volume sampler and spot samplers, into complex monitoring networks. 1 Today, a number of pollutants are measured continuously at a site; for large networks, the monitoring data are usually sent by telemetry to a central data acquisition and validation center.