Objective To evaluate the species,quantity and diffusionof allergenic pollens as well as the relationship among allergic rhinitis (AR),pollen species and meteorological conditions in Kunming area.Methods The exposure film was used to investigate the species of airborne pollen,the total number of these pollens during December 2009 to November 2010 by means of gravitational sedimentation,at the same time,AR patients were registered.The species of allergic pollen in Kunming area during the same period,and the statistic analysis was made with the meteorological elements,using the correlation analysis methods of Excel for data analysis.Results From December 2009 to November 2010,a total of 60 exposure films of pollen species was found,including 26 147 pollens.The annual airborne pollen showed two scattering peak,respectively:February to April and September to October;the number of advantage pollen was 17 species.The number of year-round drifting pollen was 13 species while 2 species showed two peaks on spring and autumn.There was another 26 new species added to the results of 2009-2010,compared with1987-1989,while the original 12 species were not seen.The drifting peak was the same.The number of allergen intradermal tests (AIT) positive AR patients was positively correlated with 16 pollen species,respectively,oleaceae,alnus nepalensis,walnut,palm,pigweed,fennel,Amaranthaceae,artemisia,rosa,Albizia julibrissin Durazz,gramineae,castor,Fraxinus L,populus,Morus alba L,hemp humulus,(r value were 0.689 7,0.550 1,0.742 1,0.755 2,0.771 2,0.663 3,0.556 1,0.568 3,0.659 8,0.607 4,0.834 7,0.664 3,0.745 9,0.634 7,0.718 3,0.777 2,all P ＜ 0.05).The population of AIT positive AR patients was positively correlated with average temperature,average wind speed and other meteorological factors (r values were 0.552 0,0.883 5,both P ＜ 0.05),and was negatively correlated with average relative humidity (r =-0.714 7,P ＜0.05).Conclusions Kunming had a large number of airborne pollen species which showed two peaks annually,respectively,spring and autumn.The relationship among the number of AIT positive AR patients,the meteorological factors and the number of airborne pollen were close.%目的 分析昆明气传花粉种类、含量、飘散规律以及变应性鼻炎(allergic rhinitis,AR)患者与花粉种类和气象条件的关系.方法 采用重力沉降法曝片调查昆明2009年12月至2010年11月气传花粉种类、数量,收集同期AR患者人数,变应原皮内试验(allergen intradermal tests,AIT)花粉种类,并与同期气象要素进行对比分析.采用Excel软件相关分析方法进行数据分析.结果 曝片共检出 60个花粉种属26 147个花粉粒;全年气传花粉呈现2次高峰,分别为2-4月和9-10月;优势花粉17种;全年飘散花粉13种;高峰期春、秋两季花粉2种.与1987-1989年相比,花粉种类新增26种,原有12个种属花粉未见,飘散高峰期20年前后一致,都为春、秋两季.AIT阳性的AR患者人数与16种花粉数量呈正相关,分别为木樨科、旱冬瓜、胡桃、棕榈、藜、茴香、苋科、蒿、蔷薇、合欢、禾本科、蓖麻、梣属、杨树、桑、大麻蓰草(r值分别为0.689 7、0.550 1、0.742 1、0.755 2、0.771 2、0.663 3、0.556 1、0.568 3、0.659 8、0.607 4、0.834 7、0.664 3、0.745 9、0.634 7、0.718 3、0.777 2,P值均＜0.05).AIT阳性的AR患者人数与平均气温、平均风速等气象要素呈正相关(r值分别为0.5520、0.883 5,P＜0.05),与平均相对湿度等呈负相关(r=-0.714 7,P＜0.05).结论 昆明气传花粉种属较多,全年呈现春、秋2个高峰,且AR患者人数与气象条件和气传花粉数量关系密切.
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