Air stripping $-$ the process of dropping water down a packed tower with a countercurrent

of air blown in from the bottom $-$ is the most commonly used design fro the removal of

volatile organics from groundwater after it is pumped to the surface $($called pump$-$and$-$

treat remediation$).$ Which of the following contaminants in groundwater would you

expect to be effectively and economically removed using air stripping?

Pentachlorophenol; PCE, MEK; Dieldrin; TCE; Vinyl chloride; chloroform; BTEX.