A side-by-side comparison of Rotorod and Burkard pollen and spore collections

Crisp, Howard C.; Gomez, Robert; White, Kevin; Quinn, James A.

doi:10.1016/j.anai.2013.05.021

Cited by 17 publications

(9 citation statements)

References 11 publications

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“…Pollen counts are collected with a Burkard volumetric air sampler or a Rotorod rotation impaction sampler. The Burkard collects higher counts than the Rotorod, particularly for smaller particles, and is more sensitive to wind speed (Frenz 1999;Crisp et al 2013). Nonetheless, daily pollen counts using the two methods are positively and significantly correlated, and the absolute difference associated with the sampling instruments is small enough that it may not be meaningful from a clinical standpoint (Crisp et al 2013).…”

Section: Pollen Datamentioning

confidence: 99%

“…The NAB allows the use of two different pollen samplers, which sample pollen counts that are significantly correlated but not equal. Although the difference between the two is small and thought to have no clinical difference (Crisp et al 2013), no quantitative comparison has been undertaken. In this study, we did use with reservation, the pollen data regardless of Fig.…”

Section: Limitations and Caveatsmentioning

confidence: 99%

See 1 more Smart Citation

Pollen calendars and maps of allergenic pollen in North America

Bitz

Battisti

et al. 2019

Aerobiologia

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Pollen is a common allergen that causes significant health and financial impacts on up to a third of the population of the USA. Knowledge of the main pollen season can improve diagnosis and treatment of allergic diseases. Our objective in this study is to provide clear, quantitative visualizations of pollen data and make information accessible to many disciplines, in particular to allergy sufferers and those in the health field. We use data from 31 National Allergy Bureau (NAB) pollen stations in the continental USA and Canada from 2003 to 2017 to produce pollen calendars. We present pollen season metrics relevant to health and describe main pollen season start and end dates, durations, and annual pollen integrals for specific pollen taxa. In most locations, a small number of taxa constitute the bulk of the total pollen concentration. Start dates for tree and grass pollen season depend strongly on latitude, with earlier start dates at lower latitudes. Season duration is correlated with the start dates, such that locations with earlier start dates have a longer season. NAB pollen data have limited spatiotemporal coverage. Increased spatiotemporal monitoring will improve analysis and understanding of factors that govern airborne pollen concentrations.

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Section: Pollen Datamentioning

confidence: 99%

Section: Limitations and Caveatsmentioning

confidence: 99%

Pollen calendars and maps of allergenic pollen in North America

Bitz

Battisti

et al. 2019

Aerobiologia

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“…Previous studies have shown that pollen concentrations evaluated by volumetric samplers and passive samplers have clear correlations (Bricchi et al, 2000;Sun et al, 2017). Conversely, it has been stated that volumetric and gravitational methods have virtually no correlation (Cornell et al, 1961).…”

Section: Introductionmentioning

confidence: 99%

“…However, the sampling methods have different sampling efficiencies. Thus, various researchers have been working on the relationship between sampling efficiency and sampling methods (e.g., Bhat & Rajasab, 1989;Crisp et al, 2013;Fiorina et al, 1997;Heffer et al, 2005;Jetschni & Jochner-Oette, 2021;Miki et al, 2017Miki et al, , 2019Toma ´s et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Evaluating inaccurate pollen concentrations caused by turbulence using passive sampler

et al. 2021

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Understanding the atmospheric concentration of pollen (which is one of the most common vectors of allergens) is necessary to determine the atmospheric allergen level. Airborne pollen concentrations were predominantly evaluated using volumetric and gravitational particle samplers. However, no previous studies have successfully shown whether these sampling methods can be used to evaluate actual airborne pollen concentrations. In this study, the relationship between wind speed and sampling efficiency was investigated to determine whether the influence of ambient wind speed on sampling efficiency was significant. To this end, the influence of wind speed was analyzed by comparing a volumetric sampler and a gravitational sampler. The experimental results indicate that an increase in the wind speed results in an increase in the sampling efficiency of the gravitational sampler because of fluctuations in the turbulence. Our simulation shows that when pollen is entrained in the turbulence, the changes in the wind speed, turbulence amplitude, and turbulence length influence the deposition rate of pollen on the gravitational sampler. These influences can be explained by the turbulence vibration model. These results show the inadequacy of existing evaluation methods, not only for pollen deposition data, but also for all types of bioaerosol deposition data.

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“…The Rotorod and Burkard are equal in collecting particles over ten microns, which were the particle sizes involved in this study. (10,11). Finally, nettle is a plant more commonly found in rural, marshy areas (12).…”

mentioning

confidence: 99%