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A pollen count is a measurement of the number of pollen grains in a given volume of air. Pollen counts, and forecasts of pollen conditions, are routinely produced and reported to the public because high aerial pollen concentration is associated with increased rates of allergic reaction for those with conditions such as hay fever and asthma .
By Thursday, we should see another burst of pollen across the region. Maples and elm join the mix this week as Bradford pears pass their peak. Pollen counts will surge with warm dry weather.
According to the Medical University of South Carolina, tree pollen is the main cause of trouble for most allergy sufferers each spring. The specific culprits are oak, pine, willow and birch trees.
Allergens found at low levels that today do not result in symptoms cannot help predict future symptom development. The quantitative allergy blood result can help determine what a patient is allergic to, help predict and follow the disease development, estimate the risk of a severe reaction, and explain cross-reactivity. [116] [117]
OAS must be managed in conjunction with the patient's other allergies, primarily the allergy to pollen. The symptom severity may wax and wane with the pollen levels. Published pollen counts and seasonal charts are useful but may be ineffective in cases of high wind or unusual weather, as pollen can travel hundreds of kilometers from other areas.
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Pollen evidence can also reveal the season in which a particular object picked up the pollen. [54] Pollen has been used to trace activity at mass graves in Bosnia, [55] catch a burglar who brushed against a Hypericum bush during a crime, [56] and has even been proposed as an additive for bullets to enable tracking them. [57]
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