Airborne Pollen and Fungal Spores in Florist Shops in Worcester and in Bristol UK: A Potential Problem for Occupational Health

Emberlin, Jean, Adams-Groom, Beverley ORCID: https://orcid.org/0000-0002-1097-8876, Treu, R. and Carswell, F. (2004) Airborne Pollen and Fungal Spores in Florist Shops in Worcester and in Bristol UK: A Potential Problem for Occupational Health. Aerobiologia, 20 (2). pp. 153-160. ISSN Print: 0393-5965 Online: 1573-3025

Abstract

Persistent allergies are common in workers in florist shops but little research has been done on the reasons for this. This paper reports an investigation of occupational exposure of florists to pollen and spores in three florist shops over a 2-week period in the autumn of 2000. In each shop three sampling methods were used: Burkard continuous volumetric samplers, deposition plates and low-tac tape for surface samples, including hands of the florists and leaves of a selection of the plants. The florists kept a record of the type of work they undertook each day and of the stock amounts of flowers in the shops. The volumetric traps collected 80 pollen and spore taxa. The average concentrations recorded through the working day were generally low but short-term peak (one hour mean) concentrations of some types were found to be relatively high or very high. For a few taxa these concentrations equalled or exceeded those typical for short-term peaks in wind dispersed pollen types in the ambient air. Fungal spore concentrations of several known allergenic types were also very high for peak periods. This was most notable for Aspergillus spp. which reached extremely high concentrations in one shop, compared with typical peak concentrations in the ambient atmosphere. Low-tac tape leaf samples demonstrated that the flowers' foliage is a major source of the fungal spores. Few pollen grains or fungal spores were found on the hands.

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