title: Soy aeroallergens in thoracic fraction particles (PM10).
abstract: BACKGROUND
  The aerodynamic diameter of biological particles determines their ability to penetrate the human respiratory system.
  
  
  OBJECTIVE
  To assess the content of allergens less than 10 pm in diameter in the particle fraction of airborne dust in order to improve control of exposure to harmful soybean aeroallergens.
  
  
  METHODS
  In this study, 98 pairs of particulate matter measuring less than 10 microm in diameter (PM10) and total suspended particulate (TSP) filters were collected in parallel and analyzed for soy aeroallergens by the inhibition enzyme-linked immunosorbent assay.
  
  
  RESULTS
  The median levels found were 6 and 22.5 U/m3 for PM10 and TSP filters, respectively. A good correlation was found between soy aeroallergen content in PM10 and TSP filters. The median proportion of soy aeroallergen content in PM10 filters versusTSP filters was 28.6%, and varied widely across different days.
  
  
  CONCLUSIONS
  Due to this wide variation between days, it seems that soy aeroallergen content in TSP filters is not a good surrogate of soy allergen content in PM10 filters. Further clinical studies should be conducted to assess differences in the health impact of soy allergen content in PM10 filters and TSP filters.
authors: Servicio de Neumología, Hospital Universitario Vall d'Hebron, Barcelona, Spain. susana.go@vhir.org
authors: S
authors: S
authors: Gómez-Ollés
authors: M D
authors: MD
authors: Untoria
authors: J R
authors: JR
authors: Villalbi
authors: X
authors: X
authors: Muñoz
authors: F
authors: F
authors: Morell
authors: M J
authors: MJ
authors: Cruz
mesh_terms: D000485:Allergens / Q000032:analysis*; D052179:Antigens, Plant / Q000032:analysis; D004784:Environmental Monitoring; D052638:Particulate Matter / Q000032:analysis*; D010940:Plant Proteins / Q000032:analysis; D012621:Seasons; D030262:Soybean Proteins / Q000032:analysis*; D013030:Spain; D014504:Urban Health; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D000485:Allergens; D052179:Antigens, Plant; C090803:Gly m I protein, Glycine max; D052638:Particulate Matter; D010940:Plant Proteins; D030262:Soybean Proteins; D001335:Vehicle Emissions