Instruments Used for Source Apportionment

The field and laboratory emission cell affords a portable, nondestructive method of testing the surfaces of potential VOC sources. In addition to its utility as a climatic chamber, it provides valuable information on source strength, which can be used for source apportionment and to formulate strategies for emission control. Wolkoff et al. [85] used it to identify emission processes in a number of building materials, while Jarnstrom and Saarela [66] recently utilised it to show that the dominant source of 2,2,4-trimethyl-l,3-pentadiol-diisobutyrate in the indoor air of some problem apartments was the floor surface. 

Apart from the field and laboratory emission cell, other instruments that have been used for source identification and apportionment include 

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