The community perception of detectable odour was divided into three locations; indoor, just
outside the house and outdoor (parks, roads, etc.). The result of the study showed that 50.5% of
the respondents perceived the worst odour detected just outside the house followed by outdoor
(8.4%) and indoor (3.7%). Another 37.4% of the respondents were not certain where the worst
smell was normally detected. The big difference on the perceived foul odour between indoor and
just outside the house was probably due to the general community practice of closing all doors
and windows thus preventing bad odour from entering indoor. The foul smell was less
discernable when one passed through the vicinity in an air conditioned car or walked in the parks.
This was probably the reason for the low score of perceived bad smell outdoor.