Asthma and weather: relationship of weather to asthma attacks in Wellington
A number of well-marked seasonal peaks of asthma attacks are found in a one year study of 30 patients (Beasley et al., 1988) in Wellington. The seasonal impact of various meteorological indices and their causal relationships with asthma are investigated. It is found that damp, light wind conditions in winter are significantly related to the frequency of asthma attacks. This is consistent with such attacks being caused by damp air spora and other allergens present in confined environments such as houses. Overland trajectories are also significantly correlated with asthma attacks. In autumn this may be attributed to damp air spora produced in rural areas to the north and northeast, and in spring to airborne pollens. No clear relationships were found linking cold changes to asthma.