What Odor Is

Biodegradation produces more than 100 smelling organic compound

Finnish research

A research was done in Finland determining the guideline values for odor and the general odor situation in Finland. According to the research, odor can be determined as a severe source of discomfort when 25 -50 % of people experience it as a nuisance. The clear odor appearance frequency is then 3 % – 9 %. The 3 % indicating clearly unpleasant and disturbing odors, the 9 % indicating odors which have more variation in the level of discomfort experienced.

A comparison with guideline values abroad gives some indication as to what level of odor can be seen as acceptable.

Source: VTT

Benefits of odor removal

Comfortable atmosphere
Better corporate image, avoiding complaints

Reducing corrosion
Extending the lifespan of products by removing corroding gas combinations

Increasing the value of land and real estate
Properties suffering from unpleasant odors can be taken into effective use

Enabling the use of environmentally friendly technologies
Controlling odors deriving from managing and storing biowaste

Examples of odors

Chemical group Compound Typical smell
Sulfides Hydrogen sulphide Rotten egg
Mercaptans Methanethiol Rotten vegetables
Amines Ammonia
Urine, rotten fish, rotten meat
Fatty acids with odor Butyric acid Rancid butter
Aldehydes Formalin Pungent, bitter
Ketones Acetone Acrid