The ability of Proguard SB2 with HydraGuard, or Concover 180 when applied to a surface of soil or contaminated sediment to suppress or restrict the flow of either Toluene or Radon 222 gas for significant periods can be an important part of any remediation project providing for beneficial applications in dealing with radioactive waste, mining wastes and other clean ups.
The chart to the right reflects the measured detection of toluene in a cylinder, one with a soil layer and the other with a coating of ConCover 180 / ProGuard SB2 with Hydraguard. Both of these shown in the light green dots were capable of suppressing VOC’s better than a soil covering. Same was done with test samples where NWC’s products were placed over Radon 222 sources of Alpha emitting particles over a 69 hour sampling period. It was shown that the Radon 222 permeation through the ConCover 180 was virtually undetected for the first 24 hour period, and then rose slightly to .003 WL in the second 24 hours, and then in the last 21 hours rose to levels of .006 WLs. So if you want to control Odors as the Sydney Tarponds Agency found, you need to use NWC’s remediation cover materials