Aerobiological Study of Pollen and Mold in the 10 States of Korea / 소아알레르기및호흡기학회지

PURPOSE: As outdoor allergen, pollen and mold are increasely drawing attention all over the country in Korea. The peninsula is located in a temperate zone and has four distinct seasons. In this study, we described the seasonal variation of the pollen and mold distributions in Korea, which may be used to evaluate the pollenosis prevalence for the first time. METHODS: Rotorod samplers were installed on the 10 stations at each state in Korea. Outdoor allergens were collected daily in each station from July 1, 1997 to June 30, 1999. After staining they were identified, counted and recorded with the weather in each state. RESULTS: The pollens were found in the beginning of February through the middle of December. The earliest pollen was found from Pusan which is a south region, and followed by Chonju, Daegu which are midsouth. The peak season for pollen was from the end of April to the middle of May(major pollen: Tree, Grasses), the second peak was depicted from the end of August to the middle of September (major pollen : sagebrush, ragweed) the outdoor molds were largely collected from the July to the middle of October. Cladosporium and Alternaria were prevalent all year round and Ascospores of Leptospheria was peak in monsoon season. CONCLUSION: The pollens were found during the whole year except from middle of the December through the middle of the January. Molds were found all year round.

Aerobiological Study for Airborne Pollen and Mold in Pusan / 소아알레르기및호흡기학회지

PURPOSE: Airborne pollen and mold spores are common causative agents of allergic disease. Atmospheric pollen and spores in one area of Pusan were collected to investigate species, particle amount, seasonal distribution, and of its association with reactivity to skin prick test in children. METHODS: Rotorod sampler was installed on the rooftop of St. Benedict Hospital in Pusan. 24 hour sampling of airborne allergens over a two year period was conducted 6 days/week from July 1, 1997 to June 30, 1999. Those samples were stained with Calberla's fuchsin and were identified, counted under the light microscope (400xfor pollen, 1000xfor mold). The data were compared with the daily weather report and allergy skin test. RESULTS: Major pollens collected were Pinus, Alnus, Juniperus, Betula, Quercus, Artemisia, Ambrosia, and Chenospodium-Amaranthus. The pollen season is relatively short and the pollen dispersed mainly during the period from March to May in case of tree pollen and from August to October in case of grass pollen. Total pollen count ranged from 0 to 1000 grains/m3/day (May 14, 99). The peak pollen season was seen during Spring and Autumn, especially in March and September. Major mold spores counted were Cladosporium, Leptospheria and Alternaria. Mold spore count ranged from 0 to 2,360 spores/m3/day (Oct. 8, 98). Cladosporium was dispersed year-round, but mainly in the October and November, while Leptospheria was dispersed mainly in the period from July to September and Alternaria counts tended to be higher around July. The concentration of mold is roughly correlated with the amount of rainfall, having high spore count in July and August, especially in case of Leptospheria. In terms of positive reaction to skin prick test in children, Alnus and Artemisia were found to be allergen source in early spring and late summer season, respectively. CONCLUSION: Analysis of pollens and mold spores sampled in the atmosphere of Pusan, Korea, for a 2 year period identified 19 species of pollens and 22 species of mold spores with seasonal variation of some clinically important pollen/mold load. Cladosporium, Leptospheria and Alternaria are found to be three major molds, especially from June to October.

Aerobiological Study for Airborne Plooern and Mold in Kuri-shi, Kyunggi-Do / 소아알레르기및호흡기학회지

In a large number of a1lergic cases, inhalant allergens, particularly airborne pollens and mo1ds am important causative, triggering agents in respiratory, even in skinanergy. It is essential for diagnosis and treatment of airborne allergy to survey the airborne pollen and mo1d in the patient's living area. Rotorod samp1er was installed on the well-ventilated rooftop of Hanyang Kuri Hospital in Kuri-shi, Kyunggi-do as the vicinity of Seoul. Airborne allergens were collected from October 1, 1995 to September 30, 1996 daily and were stained with Calberla`s fuchsin and were identified, counted under the light microscope (400Xfor pollen, 1000Xfor mold). The data were compared with the local daily weather report. The airborne pollen was found from 12th February to 22nd December. The maximal period for pollen collection was 7th-25th May (Maximal count:492 grains/ August. There were Alnus, Betula, Pinus, Quercus, Acer, Ulmus, PopuluS, Cupressaceae, Ginkgo, Corylus, Salk in the tree season from middle of February to middle of July. The grass season ranged from middle of March to end of November. There were Artemisia, Ambrosia, HumuluS, Chenopodium-Amaranthus, rumex, Plantago, Trifoium, Humulus, Chrysanthemum, Cyperus in the weed season ranged from middle of July to end of December. Airborne molds were collected all through the year except JanuaIgamma but, counted maximally from the middle of June to end l August. There were CladosPorium, Alternaria, ascospore of Leptospheria, Periconia, Myxomycete, Drechs1era, Rust urediniospores, Basidiospore, ToruIa, Xylariaceae, IOidimn, Nigrospom, Stempi1y1ium, Amphispheda, Fusarium, Aspergil1us. In Korea, there are great number of the allergic patients, but we have had a little records and data about study of relationship between the allergic diseases and airborne environmental allergens. we will reported those results completely in future.