Aeroallergens in Bangkok, Thailand.

A survey of atmospheric pollens and molds, by Durham's gravity method, was made in Bangkok, Thailand from January, 1972, to December, 1974. The pollens and mold spores were counted daily. Grass pollen was found throughout the year, with a peak from November through February. Weed and tree pollens were found in low counts. Fungal spores of the class Fungi Imperfecti was predominant, with Hormodendrum the most common. Helminthosporium, Alternaria, smut, Fusarium and rust were found in that quantitative order.