Technical Booklet K Ventilation·Page 74·D4
Urban pollution exposure conditions
Explains that urban buildings are exposed to multiple pollution sources from varying distances and heights simultaneously, with the relationship between these sources governing internal and external pollutant concentrations.
In urban areas, buildings are exposed simultaneously to a large number of individual pollution sources from varying upwind distances (long range, intermediate range and short range) and heights and also over different timescales. The relationship between these and their proportionate contribution under different circumstances governs pollutant concentrations over the building shell and also internally.
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