House dust mites (Der p 1, Der f 1), cat (Fel d 1) and cockroach (Bla g 2) allergens in indoor work-places (offices and archives)

L. Perfetti, M. Ferrari, E. Galdi, V. Pozzi, D. Cottica, E. Grignani, C. Minoia, G. Moscato

Research output: Contribution to journalArticlepeer-review


Background: Exposure to indoor allergens has already been shown to occur in many public places, including workplaces, in several countries. Aim of this study was to measure the levels of house dust mites, cat and cockroach allergens in indoor workplaces (offices and archives) in Italy and to evaluate the possible relationships between allergen levels and building characteristics, type of ventilation, indoor relative humidity and temperature. Methods: Der f 1 and Der p 1, Fel d 1, Bla g 2 were measured by ELISA in dust samples collected from floors or upholstered seats of 160 workplaces. Results: Detectable Der p 1 levels were found in 86 (54%) workplaces Der f 1 in 87 (55%), Fel d 1 in 86 (54%) and Bla g 2 in 3 (1.9%). Der p 1 allergen concentrations expressed per weight were higher than the proposed sensitization thresholds in 7 samples, Der f 1 in 5, Fel d 1 in 6 and Bla g 2 in 3. The highest allergen levels were detected in samples from upholstered seats. A significant correlation was found between Der f 1 level on floors, expressed per surface, and indoor temperature (r=0.39; P

Original languageEnglish
Pages (from-to)15-21
Number of pages7
JournalScience of the Total Environment
Issue number1-3
Publication statusPublished - Jul 26 2004


  • Allergens
  • Bla g 2
  • Der f 1
  • Der p 1
  • Exposure
  • Fel d 1
  • Indoor
  • Public buildings
  • Work-places

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Science(all)


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