Are scientists predicting an increase or decrease in ragweed pollen levels

Ragweed pollen allergy is a leading cause of seasonal allergic rhinitis (also called hay fever), which affects more than 23 million people in the United States. Feb 1, 2024 ... Common ragweed allergy symptoms · Frequent and uncontrollable sneezing · A runny, stuffy, or itchy nose · Red, swollen, watery, or itchy eyes. Previous studies have shown that heavy rainfall can reduce pollen concentrations by washing pollen from the air. We found that rainfall during the ragweed ... Mar 8, 2011 ... Here we report that duration of the ragweed (Ambrosia spp.) pollen season has been increasing in recent decades as a function of latitude in North America. Nationwide, ragweed is responsible for more instances of hay fever than any other plant. Man Texans probably would pick cedar (Ashe juni0per) as the second ... Sep 27, 2016 ... The biggest allergy trigger for fall that runs from September through October. It is a flowering plant that grows six to eight inches tall and ... Ragweed allergies tend to peak in the fall, and ragweed is the biggest allergy trigger for that season. An increase in ragweed pollen exposure, in turn, may be due to a number of factors including anthropogenic land use and climate change, although the connection ... Sep 1, 2024 ... Ragweed pollen is known for causing seasonal allergic rhinitis, also known as hay fever. Common symptoms include: Sneezing. Runny or stuffy nose. Released spring to fall, the wind-borne pollen is highly allergenic and can induce allergic rhinitis (hay fever) and dermatitis.1,3,5 In fact, 10 percent of the ...