Aug 1, 1996

Comparison between outdoor and indoor airborne allergenic activity

Annals of Allergy, Asthma & Immunology : Official Publication of the American College of Allergy, Asthma, & Immunology
G D'AmatoP Falagiani


Allergenic pollens are usually detected in outdoor air by using volumetric spore traps, which allow measurement of atmospheric concentration as pollen grains per m3 of air. The results of the pollen count are useful primarily for outdoor environments while most people spend most of the day indoors. The purpose of our study was to compare outdoor pollen levels with allergenic activity measured both outdoors and indoors. We used a Lanzoni spore trap to measure airborne Urticaceae pollen and filters collecting particles simultaneously indoors and outdoors and assayed each filter for Parietaria judaica allergenic activity. Samples were collected at the Allergological Service of the "A. Cardarelli" Hospital in Naples with the balcony open on some days and closed on others. Allergenic activity (ng/m3) was measured using the immunocapture RAST. With the balcony open there was no great difference between outdoor and indoor allergenic activity, but with the balcony closed there was a reduction of indoor allergenic activity of about one-third in comparison with outdoor allergenic activity. Statistical analysis (Pearson correlation test) indicated a significant correlation between outdoor allergen levels and indoor allergen levels with th...Continue Reading

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Mentioned in this Paper

Parietaria judaica
Air Pollutants, Environmental
Reproduction Spores
Radioallergosorbent Test
Parietaria judaica antigen
Allergen (brand of diphenylpyraline)

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