Indoor air quality was analyzed in the period from 2016 to 2019, in the Universidad Iberoamericana Torreón, with the objective of determining if it complied with the reference norms: ISO 14644- 1-2015 and UNE 100012:2005; due to in Mexico there are no applicable norms for the monitoring or indication of the Maximum Permissible Limits to determine indoor air quality. Methodology applied was focused on: 1) Determining the PSTs (from 0.3 to 10 µm) using a FLUKE particle counter; 2) Microbiological analysis; 3) Identifying isolated strains and 4) Calculating origin and wind intensity using a METPAK II climatological data and a WRPLOT software. PST and microbiological concentrations were found to be above the standards used. PS0.3 showed a significant difference (p<0.05) in the Auditorium, which had the highest concentrations in 2019 of evening schedule. Some of the biological material were identified as: 1) pathogenic bacteria of the genera Salmonella, Klebisella and Escherichia, and 2) fungi of the genera Aspergillus, Trichophyton and Candida; whose exposure could produce different allergies, asthma, develop respiratory symptoms, chronic cough, laryngitis, sinusitis and urticaria.
Globally, education changed dramatically due to the SARS-CoV-2 virus pandemic. Consequently, literacy became important as an adaptive response measure of basic education students in virtual classes. In this research, it analyzes the development of digital literacy as an effective tool in the teaching-learning process in virtual education. For them, an evaluation instrument with 40 variables on a ratio scale and 5 on a nominal scale (final Cronbach's alpha of 0.950) is used. This instrument was applied to basic education teachers in Oaxaca, Aguascalientes and Durango. Statistical test was performed to determine the factor analysis and ANOVA in order to find the main variables that are related to digital literacy in the three selected states. The main conclusions were: 1) the teachers overcame the difficulties in the use of virtual platforms and digital media during the pandemic and, 2) they achieved the understanding of the contents by the students. Greater emphasis is suggested on monitoring and evaluating distance education in order to find viable strategies according to the needs of the students
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