Table 2.

Summary of empirical soil-gas database

AnalyteSitesLocationsSoil-gas samples
C5–C6 aliphatics3388193
C9–C12 aliphatics3182152
C9–C10 aromatics3194204
n-hexane33114175
Naphthalene3179180
total (bulk) TPH35118180

TPH, Total Petroleum Hydrocarbon.