The examine, by King’s Faculty London and Imperial Faculty London, checked out grass pollen, or Phl p 5, which is the commonest hay fever set off.
Some 93 sufferers with the grievance, mentioned to be incurable, crammed in diary playing cards. Consultants took air samples on the location for a similar interval.
Dr Elaine Fuertes, of ICL, mentioned Phl p 5 ranges had been “extra constantly related to allergic respiratory signs than grass pollen counts”.