In terms of odor intensity, sense of human nose is very important to determine the scale of
detectable odor. Based on the survey, the community perception of odor intensity can be
classified into four main classes; no smell, weak unpleasant smell, medium malodor and strong
odor. The strong odor intensity is perceived by 74.2% of the respondents followed by medium malodor (16.3%), weak smell (8.4%) and no smell (1.15). Figure 2 shows the odor intensity on
perceived by the respondents.