Salvaggio et al. 1971. This paper presents the results of a 2 year study of the effect of meteorology, and pollen and fungal concentrations on emergency room admissions for asthma at Charity Hospital in New Orleans.  Authors found relationship between ragweed counts and high asthma admission days.  The authors also reported a negative effect on asthmatics from total spore and pollen counts, especially during periods of low RH, low wind velocity and high barometric pressure.