Hurtado I, Leal Quevedo F J, Rodríguez Ciodaro A, García Gómez E, Alson-Haran J
Children's University Hospital Lorencita Villegas de Santos, Bogotá, Colombia.
Allergol Immunopathol (Madr). 1989 Mar-Apr;17(2):95-104.
A one-year study of potentially allergenic airborne biological particles was carried out in Bogotá, the capital city of Colombia. Bogotá is a populous city of approximately 6 million inhabitants. Located at 4 degrees Lat N and 2,600 m on the sea level, it has a mild tropical climate. The mean annual temperature of the city is 14 degrees C, the annual rainfall 1,013 mm and the relative humidity 72%. During the year June '86-May '87 the pollen count was 7,626 contributed by 72 grain types. Among these, 24 taxa have been identified. The majority of the grains came from imported trees; Cupressus spp was the main contributor. Weed pollen counts, which include the Compositae (ragweed), were notoriously low (4% of the total). The spore count was 13,264, almost twice as large as that of pollen. Fourty-four spore taxa were identified out of 72 types recorded. More than two-thirds (72%) of the spore count was contributed by the deuteromycetes. Cladosporium was the more frequently recorded genus, Penicillium/Aspergillus second next. Miscellaneous particles recorded were 609 Algae and 142 fern spores. Because of its location in the tropics, Bogotá has neither true seasons nor the large variations in atmospheric particle counting which are typical of temperate zones. However, distinct periodical increments in the counts of various species (peaks) may be the cause of seasonal allergic symptoms.
在哥伦比亚首都波哥大开展了一项为期一年的潜在致敏性空气传播生物颗粒研究。波哥大是一个拥有约600万居民的人口众多的城市。它位于北纬4度、海拔2600米处，具有温和的热带气候。该城市的年平均温度为14摄氏度，年降雨量为1013毫米，相对湿度为72%。在1986年6月至1987年5月期间，花粉计数为7626，由72种花粉类型构成。其中，已鉴定出24个分类单元。大多数花粉粒来自外来树木；柏木属是主要贡献者。杂草花粉计数，包括菊科（豚草），极低（占总数的4%）。孢子计数为13264，几乎是花粉计数的两倍。在记录的72种类型中鉴定出44个孢子分类单元。超过三分之二（72%）的孢子计数由半知菌类贡献。枝孢属是记录频率更高的属，青霉属/曲霉属次之。记录的其他颗粒有609个藻类和142个蕨类孢子。由于其位于热带地区，波哥大既没有真正的季节，也没有温带典型的大气颗粒计数的大幅变化。然而，各种物种计数的明显周期性增加（峰值）可能是季节性过敏症状的原因。
