The paths of pollutants

1.4 The paths of pollutants

The different rates in buildings result from the simultaneous activities

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of the mechanical ventilation system,

the people in the building and,

of natural forces.

Pressure differences caused by these forces, dirt particles located on areas of relatively higher pressure to areas of relatively lower pressure and the conceivable move through each aperture in the air.

The heating, ventilation and air conditioning system is usually the dominant way and the driving force of air movement within the building.

However, one must consider that all components of the building (walls, ceilings, floors, breaking through walls, the heating, ventilation and air conditioning system and the residents) together affect the distribution of soil particles.

Natural forces have a huge impact on the air movement between zones and between the building interior and exterior. Both the

chimney effect and
Wind,

To the mechanical system of a building, air circulation and ventilation disturbing, especially when the shell of the building is damaged. This can lead to indoor air quality problems. Sometimes, the source, which affects the indoor air quality negative is difficult to identify. This occurs when the source only periodically or irregularly causing pollution and pollutant pathways, the contaminated air into different parts of the building which are far from each other and far from the actual source.

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