The indoor/outdoor comparison showed that
the indoor CRI was equal to or slightly greater than the corresponding
outdoor level. Benzene and naphthalene were the principal
contributors to the CRI with the exception of the indoor value
for HS7 where the tetrachloroethylene contribution was the highest,
approximately LCR 8 105, and the indoor value for HS3
where ethylbenzene reached LCR 7.88 105.