ON-SITE MONITORING OF VOLATILE ORGANIC-COMPOUNDS AS HAZARDOUS AIR-POLLUTANTS BY GAS-CHROMATOGRAPHY

There are a large number of organic components in air. These component s can be classified in six groups. On-site monitoring procedures for t wo of these groups, oxidant precursors and hazardous air pollutants, a re reviewed. For hazardous air pollutants, mainly long-term data are r equired. Oxidant precursors, however, some of which are very volatile, must be detected and quantified as early and as rapidly as possible. The monitoring techniques differ accordingly. Considerations governing on-site monitoring methods for both purposes are discussed.