Abstract
Airborne pollen report during the spring season in the San Salvador de Jujuy city, Argentina. We studied the airborne pollen content during the spring of 2007 in the San Salvador de Jujuy city with the aim to record the qualitative composition, describe the weekly percentual variation of capture pollen, and the evaluation of the representativity of the regional native flora and presence of allergenic pollen. Tthe sampling was carried out with a gravimetric Ddurham trap, with a weekly change of the samples. We identified 36 pollen types of which 17 belong to the exotic vegetation, 14 to the native vegetation from the Yungas forest and 5 of indefinite origin. report shows that, during the sampled period, the airborne pollen content is influenced by the urban vegetation as also the significant contribution of arboreal plants from the native Yungas forest, such as Alnus acuminata, Juglans australis, Celtis sp., Anadenanthera colubrina, among others, while at the end of season the herbaceous pollen are predominant, mainly Amaranthaceae-Cchenopodiaceae and Uurticaceae. Oof the total of pollen types registered, 16 are identified to have allergenic potential; they belong to exotic species present in the urban trees, such as Morus sp., Cupressus sp., Populus sp., Platanus acerifolia, among others, and Celtis sp. of the native flora. Tthe obtained result represents the first aeropalynological study for the San Salvador de Jujuy city.
Highlights
Resumen: Se estudió el contenido polínico atmosférico durante la estación primaveral de 2007 en la ciudad de San Salvador de Jujuy con el objetivo de elaborar un registro de la composición cualitativa, describir la variación porcentual semanal de polen captado y evaluar la representatividad de la flora nativa y presencia de polen alergógeno
We studied the airborne pollen content during the spring of 2007 in the San Salvador de Jujuy city with the aim to record the qualitative composition, describe the weekly percentual variation of capture pollen, and the evaluation of the representativity of the regional native flora and presence of allergenic pollen
The report shows that, during the sampled period, the airborne pollen content is influenced by the urban vegetation as the significant contribution of arboreal plants from the native Yungas forest, such as Alnus acuminata, Juglans australis, Celtis sp., Anadenanthera colubrina, among others, while at the end of season the herbaceous pollen are predominant, mainly Amaranthaceae-Chenopodiaceae and Urticaceae
Summary
Composición de la nube polínica y su dinámica estacional. En diferentes ciudades del país se han realizado investigaciones de polen atmosférico mediante metodología volumétrica, con el objeto de elaborar calendarios polínicos (por ejemplo Latorre & Pérez, 1997, Gattuso et al, 2003, Nitiu et al 2003, Bianchi et al, 2004). En la tabla 1 se presenta un resumen de los valores de temperaturas extremas medias semanales y monto acumulado de precipitaciones ocurridas en la semana para el periodo septiembre-diciembre de 2007. Al analizar el aporte de las fuentes emisoras de polen, se destaca que para los tres primeros meses prevalecen mayores valores de polen arbóreo (AP), el cual va disminuyendo hacia diciembre, mientras que el polen no arbóreo (NAP) adquiere mayor representación a fines de la primavera y principios de verano (Fig. 2b). Se presenta un registro fotográfico de los tipos polínicos de la flora nativa que se considera de importancia (Fig. 5), ya que aportan más del 10 % en la composición de la nube polínica atmosférica en diferentes meses
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