Trends of some airborne tree pollen in the Nordic countries and Austria, 1980—1993

Jäger, Siegfried; Nilsson, Siwert; Berggren, Britt; Pessi, Anna-Mari; Helander, Marjo; Ramfjord, Hallvard

doi:10.1080/00173139609429078

Cited by 75 publications

(46 citation statements)

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“…Spieksma et al (1995) Use the same criterion as that of Mullenders et al (1972) but suggest that the 1% of the annual total should be defined as the mean annual total for the years considered. Ja¨ger et al (1996) Pollen season starts the first day that has a daily count higher than 1% of the annual pollen, presupposing that no more than six subsequent days follow with a zero count. It ends when 95% of the total annual pollen is reached.…”

Section: Resultsmentioning

confidence: 99%

“…Other factors such as transport, resuspension and/or weather-related factors can influence pollen content. Similarly, the terms Pollination Period, Pollination Season, Main Pollination Season and Principal Pollination Period (Lejoly-Gabriel and Leuschner, 1983;Ja¨ger et al, 1996;Clot, 1998;Comtois, 1998;Frenguelli et al, 2002;Syrigon et al, 2003) all allude to the fertilization process, i.e. the transfer of pollen from anther to stigma.…”

Section: Discussionmentioning

confidence: 99%

“…This is particularly likely when the flowering periods of the different species are sufficiently separate in time or when the restrictions of the criteria used split the pollen curve into two Lejoly-Gabriel and Leuschner (1983) 0.473** (55) Gala´n et al (1995) 2002 0.757** (14) Giorato et al (2000) 0.657** (33) Lejoly-Gabriel and Leuschner (1983) Lejoly-Gabriel and Leuschner (1983) 0.807** (157) Ja¨ger et al (1996) )0.426* (146) Gala´n et al (1995) )0.276** (115) Ja¨ger et al (1996) 0.353** (101) Feher and Ja`rai-Komlo´di (1997) n.s 2002 0.297** (45) Gala´n et al (1995) 0.653** (100) Andersen (1991) )0.456* (124) Gala´n et al (1995) n.s 0.371** (56) Giorato et al (2000) n.s 2003 0.443** (85) Andersen (1991) 0.604** (122) Nilsson and Persson (1981) n.s )0.474** (74) Ja¨ger et al (1996) 0.322** (69) Sa´nchez et al (2003) n.s **99%, *95% significance levels. separate seasons.…”

Section: Discussionmentioning

confidence: 99%

“…Several authors have defined the period in terms of the time elapsing between 2 days on which specific values or conditions are registered (Mullenders et al, 1972;Lejoly-Gabriel and Leuschner, 1983;Spieksma et al, 1995;Ja¨ger et al, 1996;Feher and Ja`raiKomlo´di, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Aerobiological studies often use only pollen data from the period over which most of the annual total pollen count is recorded. Various terms are used in the literature to define this period: pollen season, main pollen season or main pollen period (Ma¨kinen, 1977;Nilsson and Persson, 1981), period of maximum pollen production (Gonza´lez et al, 1998;Nitiu, 2003), pollination period, pollination season, main pollination season, principal pollination period (Lejoly-Gabriel and Leuschner, 1983;Ja¨ger et al, 1996;Clot, 1998;Comtois, 1998;Frenguelli et al, 2002;Syrigon et al, 2003), effective pollen season (Giorato et al, 2000) and atmospheric pollen season .…”

Section: Introductionmentioning

confidence: 99%

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May the definition of pollen season influence aerobiological results?

et al. 2006

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This paper reviews the terms and major criteria used to define and limit the pollen season. Pollen data from Cordoba (Spain), Ourense (Spain) and Bologna (Italy) were used to ascertain the extent to which aerobiological results and pollen curves are modified by the criteria selected. Results were analysed using SpearmanÕs correlation test. Phenological observations were also used to determine synchronization between pollen curves and plant phenology. The criteria for limiting the shortest and longest pollen season periods, as well as the earliest and latest start and end dates, varied according to the city and the taxon under study; in many cases, results for a given taxon also depended on the year. The smallest differences were obtained for Platanus and the greatest for Poaceae.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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May the definition of pollen season influence aerobiological results?

et al. 2006

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Impacts of oak pollen on allergic asthma in the United States and potential influence of future climate change

Anenberg

Weinberger

Roman³

et al. 2017

GeoHealth

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Future climate change is expected to lengthen and intensify pollen seasons in the U.S., potentially increasing incidence of allergic asthma. We developed a proof‐of‐concept approach for estimating asthma emergency department (ED) visits in the U.S. associated with present‐day and climate‐induced changes in oak pollen. We estimated oak pollen season length for moderate (Representative Concentration Pathway (RCP) 4.5) and severe climate change scenarios (RCP8.5) through 2090 using five climate models and published relationships between temperature, precipitation, and oak pollen season length. We calculated asthma ED visit counts associated with 1994–2010 average oak pollen concentrations and simulated future oak pollen season length changes using the Environmental Benefits Mapping and Analysis Program, driven by epidemiologically derived concentration‐response relationships. Oak pollen was associated with 21,200 (95% confidence interval, 10,000–35,200) asthma ED visits in the Northeast, Southeast, and Midwest U.S. in 2010, with damages valued at $10.4 million. Nearly 70% of these occurred among children age <18 years. Severe climate change could increase oak pollen season length and associated asthma ED visits by 5% and 10% on average in 2050 and 2090, with a marginal net present value through 2090 of $10.4 million (additional to the baseline value of $346.2 million). Moderate versus severe climate change could avoid >50% of the additional oak pollen‐related asthma ED visits in 2090. Despite several key uncertainties and limitations, these results suggest that aeroallergens pose a substantial U.S. public health burden, that climate change could increase U.S. allergic disease incidence, and that mitigating climate change may have benefits from avoided pollen‐related health impacts.

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