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Ver términos de la licenciaMartínez-Bernié, Lorena, et al. (2024). Concentración de azufre bioacumulado en líquenes corticícolas del género Parmotrema en áreas verdes urbanas de Asunción, Paraguay. Revista Internacional de Contaminación Ambiental; Vol. 40, 2024; 709-721. Recuperado de https://repositorio.unam.mx/contenidos/4161096
Autor(es)
Martínez-Bernié, Lorena; Caballero, Rita; Díaz-Domínguez, Raúl; Ortigoza, Marcos; Doria, Vanessa; Medina, Leonida; Galeano, Edgar; Mereles, Juan Ignacio
Tipo
Artículo de Investigación
Área del conocimiento
Biología y Química
Título
Concentración de azufre bioacumulado en líquenes corticícolas del género Parmotrema en áreas verdes urbanas de Asunción, Paraguay
Fecha
2024-11-21
Resumen
Considering the limited information available on the impact of air quality on sensitive organisms, its use as an alternative tool for measuring pollutants in Paraguay, and the population growth with projections for the coming years, the present study aimed to determine the bioaccumulated sulfur concentrations in corticolous lichens of the genus Parmotrema in green areas in the city of Asunción, the capital of Paraguay. The sampled sites were distributed into six groups and one control group (National Park), and the number of trees present at each site was also considered, establishing five ranges. The lichens from the control group showed a significantly lower mean concentration than the other groups. Group B, with high vehicular traffic, presented a higher mean sulfur concentration compared to the other groups. Furthermore, it was observed that in sites with a greater number of trees, the mean sulfur concentration on lichen thalli decreases. The results obtained in the city of Asunción indicate different levels of pollution, which suggests the need to carry out additional investigations to determine the precise source of contamination and to assess the potential effects on human health and the natural environment.
Tema
contaminación; dióxido de azufre; hongos liquenizados; cuantificación turbidimétrica; plaza urbana; pollution; sulfur dioxide; lichenized fungus; turbidimetric quantification; urban square
Idioma
spa
ISSN
ISSN impreso: 0188-4999
