Reevaluation of pollen quantitation by an automatic pollen counter.

Abstract:

:Accurate and detailed pollen monitoring is useful for selection of medication and for allergen avoidance in patients with allergic rhinitis. Burkard and Durham pollen samplers are commonly used, but are labor and time intensive. In contrast, automatic pollen counters allow simple real-time pollen counting; however, these instruments have difficulty in distinguishing pollen from small nonpollen airborne particles. Misidentification and underestimation rates for an automatic pollen counter were examined to improve the accuracy of the pollen count. The characteristics of the automatic pollen counter were determined in a chamber study with exposure to cedar pollens or soil grains. The cedar pollen counts were monitored in 2006 and 2007, and compared with those from a Durham sampler. The pollen counts from the automatic counter showed a good correlation (r > 0.7) with those from the Durham sampler when pollen dispersal was high, but a poor correlation (r < 0.5) when pollen dispersal was low. The new correction method, which took into account the misidentification and underestimation, improved this correlation to r > 0.7 during the pollen season. The accuracy of automatic pollen counting can be improved using a correction to include rates of underestimation and misidentification in a particular geographical area.

journal_name

Allergy Asthma Proc

authors

Muradil M,Okamoto Y,Yonekura S,Chazono H,Hisamitsu M,Horiguchi S,Hanazawa T,Takahashi Y,Yokota K,Okumura S

doi

10.2500/aap.2010.31.3354

subject

Has Abstract

pub_date

2010-09-01 00:00:00

pages

422-7

issue

5

eissn

1088-5412

issn

1539-6304

journal_volume

31

pub_type

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