Quantitation by Portable Gas Chromatography: Mass Spectrometry of VOCs Associated with Vapor Intrusion

Table 6

Breakthrough study results.

Compound	Mass (m/z)	Breakthrough time (s)
Benzene	78	75
Carbon tetrachloride	117	350
(𝐸/𝑍)-1,2-Dichloroethylenes	96	75
Ethyl chloride	66	25
Methylene chloride	84	50
Trichloroethylene	97	125
Tetrachloroethylene	166	>575
Toluene	92	150
Vinyl chloride	62	50
o, m, p-Xylenes	106	>575