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Ambrosia trifida, the giant ragweed, is a species of flowering plant in the family Asteraceae. It is native to North America , where it is widespread in Canada , the United States , and northern Mexico .
The report also ranked cities based on levels of different types of pollen, including tree, weed and grass pollens. Wichita, Kansas, topped the rankings in all three pollen categories. The best ...
Ambrosia artemisiifolia pollen. Ragweed pollen is a common allergen. A single plant may produce about a billion grains of pollen per season, [11] [12] and the pollen is transported on the wind. It causes about half of all cases of pollen-associated allergic rhinitis in North America, where ragweeds are most abundant and diverse. [8]
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 .
Weather Permitting: Allergy-sufferers beware: The pollen count is on the rise in Fayetteville. Gannett. Chick Jacobs. March 11, 2024 at 11:41 AM.
The Dallas–Fort Worth metroplex, officially designated Dallas–Fort Worth–Arlington by the U.S. Office of Management and Budget, [a] is the most populous metropolitan statistical area in the U.S. state of Texas and the Southern United States, encompassing 11 counties. Its historically dominant core cities are Dallas and Fort Worth. [5]