Determinación del comportamiento ácido de las precipitaciones en la Hacienda Santa Helena, inmediaciones del cerro del Majuy en Cota Cundinamarca y su efecto en especies liquénicas

Abstract

The industrial corridor on the Medellin highway, gives rise to the formation of a new economic space, generating a significant increase in industrialization in the municipality of Cota Cundinamarca. . In an effort to adapt and evolve to keep land productive purposes, the vulnerability that is exposed Majuy hills range the hill, where a community lives Muisca Indian Cota is evident(Alcaldía de Cota - Cundinamarca). 7 stations were located in the Santa Helena hill near the Majuy hills range, in order to determine the presence or absence of any conduct acid precipitation of the study area, analyzing in situ specific conductivity and acidity (pH), laboratory and nitrate ion concentrations (NO₃). Likewise, they were taken as test organisms, 4 lichen species (Flavoparmeliacaperata (L.) Hale, Phaeophysciaorbicularid (Neck.) Moberg, Xanthoriaparietina (L.) Moberg Th.Fr. and Parmotremaperlatum (Huds.) M. Choisy) representative in the study area to identify air quality through the methodology of lichen Diversity Index (LDV) and the Index of Atmospheric Purity (IPA), achieving observe possible effects on air quality in hill Majuy hills range, and the possible link between increased coverage of lichen and industrial activities present in surrounding areas. From descriptive statistical analysis, values within three physico-chemical parameters (pH, conductivity and nitrate) sample of rain, which did not present relevant behaviors to demonstrate an acidic precipitation behavior in the theory, were evident. In conclusion, although nitrate values were within the range established for the presence of acid rain according to IDEAM, the values were not representative quantity as to catalog the presence of acid rain in the study area.