| dc.description.abstract | This work presents the evaluation of ambient air quality in four educational institutions:
"Nicolas Sojos," "Abelardo Tamariz," "Panamá" and "Luis Cordero" in the canton of Cuenca
in the context of tactical urbanism interventions. For this purpose, the concentrations of
sedimentable particles, sound pressure levels, and concentrations of metals such as Al, Mn,
Zn, Fe, Co, and Cr in transplanted bryophytes of the genus Bryum. The monitoring of
sedimentable particles was carried out in three stages, exceeding the standard (> 0,50
mg/cm2*30 days) in the Luis Cordero and Abelardo Tamariz schools in stage 1, and the
Panama, Luis Cordero, and Abelardo Tamariz schools in stage 2. In stage 3, only the Abelardo
Tamariz school exceeded the national standard (> 1,00 mg/cm2*30 days). The sound
pressure levels recorded varied between 56 - 86 dB(A) and were higher than national, and
local regulations. After the interventions, there were no significant differences with the levels
initially recorded. Regarding the concentrations of metals in the mosses, the highest
concentration was for Al (1 475,50 mg/kg) and the lowest for Co (0,15 mg/kg). In addition, the
Abelardo Tamariz school had the highest concentration of metals, and Zn was most related to
road traffic (r = 0,98). The conclusions state that the schools present contamination by
settleable material and exceeded sound pressure levels, and the results did not vary
significantly by the tactical urban planning interventions. | |
