Year 2020, Volume 66 Issue 1 (31.03.2020)

Year : 2020
Volume : 66
Issue : 1 (31.03.2020)
Authors : Maarit HELLSTEDT
Abstract : Agriculture is the most significant source of ammonia emissions. These emissions cause, for example, odour problems, which are a local nuisance to neighborhoods, and acidification. Traditionally, animal production farms have been situated in rural areas far from densely populated areas. However, as urban areas grow, the urban population is moving nearer to these farms. Problems arise when farms need to grow or change their production and their neighbors oppose this due to the potential for odour. Thus, odour annoyance must be taken into account when providing environmental permissions for animal production units. Two different estimation methods are used in Finland. The first is a curve based on the number of livestock units in the production unit. The second, which is still under development, is a model based on animal- and production-dependent odour factors, the prevailing wind direction and the topography of the area. However, both methods have deficiencies. When the production unit has already been established, prevailing odour can be measured with an olfactometric method based on the odour sensations of a panel of people with different sensitivities to odour annoyance. The olfactometric method can also be used to estimate the effect of different production technologies on odour. Examples of applications of the olfactometric method are presented.
For citation : Hellstedt, M. (2020): Detection of odour from animal production in Finland. Agriculture and Forestry, 66 (1): 07-14
Keywords : Animal production, odour, annoyance, measurement
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