Diagnóstico de la presencia de lluvia ácida al sur de la serranía del Majuy en cota Cundinamarca y su efecto en especies liquénicas
Fecha
2017Registro en:
reponame:Repositorio Institucional Universidad Santo Tomás
instname:Universidad Santo Tomás
Autor
Gutiérrez Díaz, Nicol Lizeth
Institución
Resumen
The industrial growth in the savanna of Bogota has caused that the different industries are established in their surroundings, having as consequence an environmental imbalance [1], mainly in the atmosphere, reason why it is necessary the evaluation of the presence of acid rain, An example of this situation is presented in the municipality of Cota Cundinamarca, from which derives the evaluation of the acid precipitations of the present study. For this evaluation, rainwater sampling was used in 10 zones located along the mountainside for 3 months (July-September), analyzing parameters in situ such as pH and conductivity; And in the laboratory: concentrations of nitrates (NO3) and sulfates (SO4); In order to identify their variations during the sampling period and thus corroborate the presence of acid rain. In addition, two lichen genus, Flavoparmelia sp and Usnea sp. In the first one, the identification and classification in the laboratory of the algae that was formed was performed, in order to observe the structure of the energy and the capacity that algae can test as a biological indicator. With these genera, the methodology of the Lichen Diversity Index (LDV) and the Atmospheric Purity Index (IPA) were used to analyze the possible involvement of the liquid species present in the study area due to the presence Of Acid Rain; Observing the possible atmospheric pollution, in relation to lichen cover and industrial activity.
According to the results obtained in the study it was evidenced that the values of conductivity, nitrates and sulfates, are within the range that determines the presence of acid rain according to the IDEAM, although the acidity of the precipitations tends a level, since, All The pH values are found to not exceed the range of acidity; Nevertheless the values of the conductivity, the nitrates and the sulphates are so that it is possible to identify a slight contamination, being the potential causes the industries and / or the constant vehicular flow in the municipality of Cota, Cundinamarca.