the odor and GC–MS based concentration profiles varied to someextent. Compound 1 was adsorbed faster than other compoundsand during this period of time, overall odor did not reduce to thesame extent. However, equilibrium was achieved more or less inthe same time, approximately 4 h after PAC was added. Fig. 6presents the percentage removal of overall odor (OlfactometryOutput) against percentage removal of relative concentrations ofthree compounds and it is revealed that the odor contributing