Monitoring of the Airborne Pollen Diversity in the Urban Area of San Salvador De Jujuy, Argentina

The diversity of the airborne pollen content of a city reflects its vegetation landscape at different spatial scales. Overall, it was estimated that the trapped pollen by a sampler placed about 15m height records 50% of the pollen grains releasing above the canopy of the trees and it comes from distance 250m or less, 45% coming from distance up to 5km and only 5% coming from distance longer to 5km [1]. Therefore, the main source of pollen is the local and extra-local flora [2]. Within an urban area, local flora is composed by species forming part of the ornament in streets and green spaces, whereas the extra-local and regional flora depends of the phytogeographical context, where the city is located. In this sense, the plantation of the urban vegetation will be subject to the anthropic action (species cultivated or introduced involuntarily), that sometimes does not have an adequate planning and management, because alochthonous plants are planted that usually have components or toxic substances that represent a risk factor to public health. Likewise, the autochthonous or native vegetation of some regions can also constitute a source of natural risk to health and its impact on the local population deserves to be studied [3].