Table 6.

Vapour pathway concentrations (µg m−3) beneath the house

Sub-slab
VPIS-1, suspended floorVPIS-2, suspended floorVPIG-1, solid floor
10 July 2014
Trichloroethene (TCE)nanana
Toluenenanana
Tetrachloroethene (PCE)nanana
m&p-xylenesnanana
o-xylenenanana
27 March 2015
Benzene<4.88.66.1
Toluene<5.77.56.8
Ethylbenzene6.9<6.5<6.5
m&p-xylenes26.5<6.5<6.5
o-xylene7.8<6.5<6.5
16 May 2015
Benzene6.75.48.3
Trichloroethene (TCE)13.4<8.1<8.1
Tetrachloroethene (PCE)<10.2<10.2<10.2
23 June 2015
Benzene<4.8<4.8<4.8
Trichloroethene (TCE)<8.1<8.1<8.1
Toluene<5.7<5.7<5.7
Tetrachloroethene (PCE)<10.2<10.2<10.2
Ethylbenzene<6.5<6.5<6.5
m&p-xylenes<6.5<6.5<6.5
o-xylene<6.5<6.5<6.5
27 January 2016, cold property
Benzene76<4.8<4.8
Trichloroethene (TCE)<8.1<8.1<8.1
Toluene<5.7<5.7<5.7
Tetrachloroethene (PCE)<10.2<10.2<10.2
Ethylbenzene13<6.5<6.5
m&p-xylenes19.5<6.5<6.5
o-xylene<6.5<6.5<6.5
28 January 2016, warm property
Benzene<4.8<4.8<4.8
Trichloroethene (TCE)<8.1<8.1<8.1
Toluene<5.7<5.7<5.7
Tetrachloroethene (PCE)<10.2<10.2<10.2
Ethylbenzene<6.5<6.5<6.5
m&p-xylenes<6.5<6.5<6.5
o-xylene<6.5<6.5<6.5

na, not available.