Table 2
Summary of ethyl benzene and xylene 8-h time-weighted average concentrations in the first and second weeks (unit: ppm)
Contaminant
First week (n51)
Second week (n48)
Ethyl benzene
32 (9.6570)
119 (36197)
Xylene
18 (6.9235)
171 (53315)
Median (Q
25
Q
75
). Sample sizes vary by exposure measure because workers were absent.