A study has found that the number of people suffering from allergy is likely to double by the year 2040, as the pollen counts are expected to more than double.
According to a study being presented by allergist Leonard Bielory, M.D., at the Annual Scientific Meeting of the American College of Allergy, Asthma and Immunology (ACAAI), pollen counts are expected to more than double by 2040.
"Climate changes will increase pollen production considerably in the near future in different parts of the country," said Dr. Bielory, ACAAI board member and fellow. "Economic growth, global environment sustainability, temperature and human-induced changes, such as increased levels of carbon dioxide, are all responsible for the influx that will continue to be seen."
In the year 2000, pollen counts averaged 8,455. Fast forward to 2040, and these counts are anticipated to reach 21,735. Researchers predict counts in 20-year increments up to the year 2100, and are incorporating various climatic factors in their models including weather patterns, changes in precipitation and temperature. The study, taking place at Rutgers University in New Brunswick, N.J., is ongoing to analyze various allergenic plants being grown in climate chambers mimicking future conditions.
While pollen counts will progressively increase over the years, the study also found the sneezing season will begin earlier every year.
"In 2000, annual pollen production began on April 14, and peaked on May 1," said Dr. Bielory. "Pollen levels are predicted to peak earlier on April 8, 2040. If allergy sufferers begin long-term treatment such as immunotherapy (allergy shots) now, they will have relief long before 2040 becomes a reality."
An earlier report by the same researchers demonstrated an increase in ragweed pollen in a section of the country, from Texas to the Canadian border, over the past 25 years. This was associated with an increase of ragweed pollen by two to three weeks as one moves north.
ACAAI allergists recommend allergy sufferers begin treating their symptoms with over-the-counter or prescribed medications two weeks before symptoms usually start. While there isn't a cure for allergies, immunotherapy is the only treatment that can prevent disease progression. It can also result in health care savings of 41 percent.