Airborne allergens types

For LMW agents that are respiratory allergens, airborne concentrations appear to be a very important determinant in influencing severity and type of symptoms (Arts et al., 2006). The tendency to develop allergic asthma was shown to be more dependent on intensity of exposure than on weekly duration in occupational settings (Nieuwenhuijsen et al, 2003). Furthermore, the dose necessary for sensitization appears to be at least 10-fold higher than the dose necessary to provoke an allergic attack in a sensitized individual (Swanson,... 

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