The Aerobiology Pathway

Figure 2.5
Spore size, lung penetration
and type of
allergic disease (Lacey,
J., et al., 1972, with
permission from
Elsevier).
5.2.1. Allergy
The increasing incidence of both pollinosis and asthma in the population at large has
involved pollen and spore data being included in publications emanating from respiratory
diseases, community health and medical practices (D’Amanto et al., 1991;
Spiewak, 1995; Emberlin, 1997; Newson et al., 2000; Corden and Millington, 2001
Corden et al., 2003). Pollen counts are regularly broadcast on the media and this enables
sufferers have some knowledge of the presence of allergens in the air. Figure. 2.6
shows when the most common allergenic pollen is likely to be released. One of the earlier
British studies investigating the relationship between pollen and spores and allergy
was published by Hyde (1972). Pollen has been associated with the prevalence of allergic
rhinoconjunctivitis, asthma and atopic eczema in children (Burr et al., 2002).
Mackay el al. (1992) undertook a study involving medical application of data at the
Scottish Centre for Pollen Studies. The ever increasing attention to and research into
the application of aerobiology to medicine is exemplified by publications involving the
relationship between aerobiology and allergology (Morrow-Brown, 1994) and the airborne
fungal populations in British homes and the health implications (Hunter and
Lea, 1994). Between ten and twenty per cent of the world’s population is considered to
be city dwellers (Hunter and Lea, 1994). The changing health patterns reflect this shift
from the rural environment no more so than in the increase in allergies recorded inclu-
THE AEROBIOLOGY PATHWAY 25