Pollen levels
[DOC File]Clark County Aeroallergen History and Cycles
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Pollen levels vary each year based on rainfall and dates sampled. As sampling is done two days per week during the peak pollen season, it is possible to miss the actual peak pollen release. The highest mulberry level of almost 70,000 grains per cubic meter was recorded in 2005. Since then the peak levels have been significantly less.
[DOC File]POLLEN - Meteorologisk institutt
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Since the total number of the released grains is high and the threshold levels for provoking symptoms in sensitized people are quite low this long-range transported pollen can have substantial health impact [Viander and Koivikko, 1978]. A key tool for analysing the pollen redistribution in air is the atmospheric dispersion modelling.
[DOCX File]STATE ENVIRONMENTAL HEALTH INDICATORS …
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Differences in pollen levels can occur among pollen counting stations, even those in close proximity to other pollen counting stations, such as within the same city. Reasons for these dissimilarities can include differences in time of day of pollen sample collection.
[DOCX File]IEc Report Format v2.1
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asthma emergency department visits (all ages) per 100,000 population in 2010 associated with 1994–2010 average grass pollen levels (Figure S-5, three panels, one for each pollen type); annual regional pollen-related asthma ED visits change from baseline for each RCP scenario, averaged across all five General Circulation Models, with detail by ...
[DOC File]Allergologia et Immunopathologia
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In the placebo group the grass-pollen-specific Lol p I, IgG serum levels increased only during the grass pollen season. The increase shown in the patients treated with grass-pollen-extract occurred prior to the pollen season and was significantly (p ¾ 0.002) higher than the increase seen in the placebo group.
[DOC File]Study of Spring Tree Pollen, Weather, and Health Effects
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Tree pollen levels typically peak from late March through most of April. The data collection should continue for a minimum of two weeks (data collected during ten school days). If time permits and student interest level is high, you can continue for four weeks (20 days of data). This would include a fair amount of the tree pollen season.
[DOC File]Pollen allergy in Europe
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Overall, levels of airborne pollen are increased by warm, dry, clear conditions and fall during unseasonable, cold or wet periods. Determinants of pollens output anemophilous species are not well understood but appear to include temperature, humidity, rainfall and light intensity. Anemophilous annuals, which must complete their life cycles in a ...
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