Table 3

Volatile organic compound (VOC) concentrations after combustion of six brands of indirect moxa

VOCs (μg/m3)
BenzeneTolueneChloro-benzeneEthyl-benzenem.p-XyleneStyreneo-Xylene1,3-Dichloro-benzene1,4-Dichloro-benzene1,2-Dichloro-benzeneTVOCs
Blank3.201.470.050.360.780.110.242.310.280.0448.06
A33.9731.210.3116.7039.363.2210.143.570.370.11288.83
B45.1724.611.835.1810.504.323.102.800.000.37227.93
C23.5014.070.153.436.952.331.993.800.280.13140.82
D41.9225.282.185.8612.704.133.623.340.820.38223.22
E29.1030.230.2518.7344.654.2711.733.450.740.00260.15
F33.2218.230.123.146.523.371.953.160.000.00161.35
Limit400
  • Blank refers to indoor air condition before combustion. Limit refers to upper safety threshold according to Korean environmental law. A to F represent six different brands of indirect moxa.

  • TVOCs, total volatile organic compounds (estimated from toluene).