|August 23, 1996|
American Academy of Allergy, Asthma and Immunology
611 E. Wells Street
Milwaukee, WI 53202-3889
Contact: Linda Bleimehl
MILWAUKEE - A cool but rainy spring and early summer in the East and Midwest has provided fertile ground for weed growth, according to members of the American Academy of Allergy, Asthma and Immunology's (AAAAI) National Allergy Bureau (NAB). In particular, ragweed pollen counts are high in these areas of the country, including parts of the Southwest due to hot and dry conditions.
NATIONAL ALLERGY BUREAU REPORTSBumper crop of ragweed expected in parts of the East, Midwest and Southwest;
ON FALL ALLERGY SEASON
Today's NAB report shows high mold spore counts across the U.S.
According to Donald Pulver, M.D., Chair of the AAAAI's Aerobiology Committee, the ragweed season began a week early in the Northeast. "It's time to batten the hatches by closing your windows, turning on the air conditioner and staying indoors if you're allergic to ragweed," Dr. Pulver said.
Ragweed is at high levels in the Midwest and Northeast. It pollinates for approximately six to eight weeks at nearly the same period each year (mid-August to mid-October, or until the first frost). Each ragweed plant produces about one billion microscopic pollen grains during an average allergy season. "The pollen assault continues until temperatures dip below 29 degrees for two or three days in a row, which usually happens in October," Dr. Pulver added.
Cities expecting higher than normal ragweed counts this season are: Charlotte, NC; Colorado Springs, CO; Dallas, TX; DeKalb, IL; Fargo, ND; Fort Smith, AR; Indianapolis, IN; Louisville, KY; Nashville, TN; Newark, NJ; Oklahoma City, OK; Olean, NY; Omaha, NE; Rochester, NY; Scottsdale, AZ; Tucson, AZ; Waco, TX and Washington, DC.
Many cities across the country are expecting the fall ragweed season to be the same as last year. Those cities include: Erie, PA; Cape Girardeau, MO; Kalamazoo, MI; La Crosse, WI; Marshfield, WI; Milwaukee, WI; Sioux Falls, SD; Atlanta, GA; Baltimore, MD; Sarasota, FL; Tallahassee, FL; Sacramento, CA; Salt Lake City, UT and Santa Fe, NM.
Areas along the West Coast, particularly Los Angeles, Santa Barbara, San Diego, Eugene, OR, Vancouver, WA and Seattle have little or no ragweed.
Mold spore counts are climbing across the country as the majority of AAAAI certified counting stations in the NAB are reporting high or very high levels. Outdoor mold spores begin to appear after a spring thaw and reach their peak in either July, August, September or October in the northern U.S. Mold National spores can be found all year long in the south. Mold grows on soil, vegetation and rotting wood. Today's data reported by NAB certified counting stations show the following high mold spore counts (shown in grains per cubic meter):
Chelmsford, MA 11,888 Cherry Hill, NJ 6,498 Dayton, OH 13,743 Detroit, MI 18,225 Fargo, ND 7,366 Grand Rapids, MI 5,448 Indianapolis, IN 13,916 La Crosse, WI 12,818 Lafayette, LA 9,266 Little Rock, AR 14,163 Kalamazoo, MI 22,260 Knoxville, TN 5,897 Mankato, MN 10,710 Milwaukee, WI 7,595 Oklahoma City, OK 3,181 Philadelphia, PA 4,985 St. Louis, MO 7,111 Sarasota, FL 6,550 Tallahassee, FL 4,728 Waco, TX 2,477 Watertown, NY 5,723 Vancouver, WA 7,038
The general public can get weekly updates of the National Allergy Bureau report by calling 1-800-9-POLLEN, the NAB's toll-free information line or visiting the NAB on-line.
The National Allergy Bureau is the nation's only network certified by the American Academy of Allergy, Asthma and Immunology. As a certified network, the NAB has a standardized format for collecting pollen and spore samples. It has established 80 stations in 33 states and the District of Columbia, each managed by a physician and staffed by a uniformly trained and certified counter. Since 1992, the NAB has served as an information resource to the media by releasing the National Allergy Bureau Report every Thursday.
The American Academy of Allergy, Asthma and Immunology is the largest professional medical specialty organization representing allergists, clinical immunologists, allied health professionals, and other physicians with a special interest in allergy. The Academy has over 5,000 members in the U.S., its possessions and Canada, and more than 300 members in 41 other countries.
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