info:eu-repo/semantics/bachelorThesis
Tree Bark as a Bioindicator of Atmospheric Contamination by Heavy Metals according to Vehicular Traffic Intensity in El Tambo, Huancayo, Peru
Fecha
2023Registro en:
Baltazar, N., Schwartz, A., Guerreros, A. y Camargo, S. (2023). Tree Bark as a Bioindicator of Atmospheric Contamination by Heavy Metals according to Vehicular Traffic Intensity in El Tambo, Huancayo, Peru. Tesis para optar el título profesional de Ingeniero Ambiental, Escuela Académico Profesional de Ingeniería Ambiental, Universidad Continental, Huancayo, Perú.
ICOAER 2022: Advances in Environmental Sustainability
Autor
Baltazar Sedano, Neddy Milka
Schwartz Valverde, Andrea Jesús
Guerreros Chiri, Alexis Jeanpeer
Camargo Hinostroza, Steve Dann
Institución
Resumen
Tree bark is a good atmospheric heavy metals contamination bioindicator. This study aims to determine heavy metals in
tree bark in El Tambo, Huancayo, Peru. Salix babylonica, Populus nigra, Senna multiglandulosa, and Schinus molle bark samples
were taken in 2021 and analyzed through Inductively Coupled Plasma Optical Emission Spectroscopy. Results show heavy metals
concentrations (mg.kg-1) of Zn (195.92 ± 125.97) > Pb (24.45 ± 15.57) > Cu (23.39 ± 11.01) > Cr (2.43 ± 1.13) > Cd (1.77 ± 3.06) >
Ni (1.01 ± 0.70). The highest contamination levels were by Zn, Pb, and Cu, and the lowest by Cr, Cd, and Ni. The average
concentration due to vehicular traffic intensity was Zn > Cu > Pb > Cr > Cd > Ni. Cr reveals higher concentration at high traffic levels;
Cu, Ni, Pb, and Zn at moderate, and Cd at low levels. Schinus molle showed the highest concentration of Ni, Populus nigra of Cr, and
Salix babylonica of Zn and Cd. The lowest concentrations of all metals were found in Senna multiglandulosa. This and Salix
babylonica are bioindicators of Pb, Cr, Cd, Cu, Ni, and Zn, the first report for the world on bark in Fabaceae and Salicaceae species.