Abstract: Odour is an environmental element consisting of organic and inorganic components. Odour is also referred to as properties or quality of a source which effects, stimulates or conceivable by the senses. Hence, odour can be sensed or detected by the sensory organs in the form of aroma, fragrance and offensive smell. Odour pollution is an indicator of a change or altered equilibrium in an ecosystem with adverse effects on health. Thus this empirical study was conducted to detect the concentration of odour and perceptions of adverse effects in the vicinity of the Ampar Tenang landfill. The concentration of the odour was measured by using the Odour Concentration Meter Model XP-329. The odour concentration was observed over three periods i.e., morning, evening and night in various situations. The analysis of the findings indicated obvious differences in concentrations between the periods of the time, particularly after rainfall.