Conference Agenda

Bioaerosols are airborne particles or microfragments that contain a variety of microorganisms. In closed environments these can affect the health of humans, especially, fungal bioaerosols can generate allergies, infections or respiratory issues. In this study, airborne fungi were identified and quantified in closed environments inside a Higher Education Institution (IES) in the city of Cartagena de Indias in the Colombian Caribbean during 2023. 452 samples were collected using the gravitational deposition technique. The results showed that the predominant genera and species were Mucor sp (40%), Cladosporium sp (25%) and Penicillum sp (19%); followed by Asperillus niger (7%), Microsporum sp (5%), finally, with a percentage of occurrence equal to or less than 1%, Alternaria sp, Aspergillus flavus, Aspergillus fumigatus, Paecilomyces sp and Rhodotorula sp were identified. It is concluded that it is important to carry out an evaluation of the microbiological quality of indoor air, especially the characterization of potentially pathogenic fungi, which can affect the health of workers; who spend a large part of their day exposed to the air in the indoor environments of the higher education institution under study.

Abstract – This study analyzes land use changes in the Llaucano Basin, Hualgayoc Province, Cajamarca, between 1995 and 2024, using Landsat satellite imagery and the Corine Land Cover methodology. The results reveal significant transformations, particularly an increase in artificialized areas, which rose from 3.39% to 11.84%, driven by urban expansion, infrastructure development, and mining activities. Simultaneously, agricultural areas decreased from 15.73% to 11.73%, while natural pastures increased their coverage, reflecting a shift toward livestock activities at the expense of intensive agriculture. Water surfaces and shrubland categories experienced significant reductions, while burned areas expanded, highlighting environmental impacts such as habitat fragmentation and the loss of ecosystem services. These trends are influenced by both human activities and climate change, emphasizing the region's vulnerability. The study underscores the need for sustainable strategies that integrate biodiversity conservation with economic development. It proposes implementing reforestation, sustainable agricultural practices, and proper urban planning to mitigate negative impacts and ensure the long-term sustainability of the basin's ecosystems. These findings provide key insights for environmental management in similar contexts.

The aim of this systematic review, carried out under the PRISMA methodology, is to investigate the use of the enzymatic method for wastewater treatment, specifically in the textile sector, to find out its benefits and performance for bioremediation. Studies in pre-treatment, laundry and dyeing were considered in order to find the highest degree of decomposition of pollutants in their wastewater. Eighty-eight articles were analysed in which the main area studied was the dyeing area, where the highest percentage of remediation resulted from the use of enzymes from bacteria and fungi, which means that these enzymes are more efficient in terms of decolourisation. Therefore, the articles mention aspects such as definition of enzymes, main pollutants, parameters considered, research areas and results of wastewater decolourisation. Finally, an emphasis is developed on the use of the enzymatic method as an ecological alternative for the decontamination of wastewater in the textile sector.

The green hydrogen is considered the energy of the future and capable of replacing conventional fuels in those sectors that are most difficult to decarbonize. conventional fuels in those sectors that are most difficult to decarbonize.

The objective of this review is to analyze how the production and use of green hydrogen contribute to mitigate atmospheric pollution in the contribute to mitigating atmospheric pollution in industry, by identifying industry, identifying efficient production methods and assessing its environmental impact compared to other fossil fuels. environmental impact compared to other fossil fuels. To this end, a systematic review without meta-analysis a systematic review without meta-analysis using the PICOC strategy. A Based on the established inclusion and exclusion criteria, 31 open-access articles were selected from 31 open-access articles were selected from the Scopus, Scopus and Scopus databases.

The results showed that water electrolysis is the predominant method for producing green hydrogen, using electrolyzers and electrolyzers. using electrolyzers and renewable energies such as solar and wind.

In conclusion, the studies reviewed indicate a significant reduction in emissions of CO₂ and other pollutants by using green hydrogen in the other pollutants by using green hydrogen instead of fossil fuels. Although economic and infrastructural challenges exist, the adoption of green hydrogen holds promise for a cleaner and more sustainable economy.

The COVID-19 pandemic not only severely impacted global health, but also triggered a less visible crisis in solid waste management. In the midst of fighting an invisible enemy, institutions and households began to produce unprecedented volumes of waste. This situation not only posed significant logistical challenges, but also posed serious risks to public health and environmental balance. The aim of the study was to analyze the impact of the pandemic on the generation and management of household waste, as well as to evaluate the measures implemented to protect waste collectors through personal protective equipment and to improve the management of this waste. The methodology used was a systematic review of the literature. Fifty open access documents were selected from the Scopus database, according to specific inclusion and exclusion criteria. The findings revealed a significant increase in waste production, particularly plastics, accompanied by a decrease in proper segregation, recycling and disposal processes, mainly due to the general increase in waste generated. It is concluded that efficient solid waste management, based on proper segregation and education and awareness, not only protects collection personnel by reducing their exposure to hazardous materials, but also improves treatment and recycling processes, reducing the accumulation of contaminated waste.

The consequences of wildfires are directly related to the increase in greenhouse gas emissions (GHG), primarily CO₂. The Cordillera Blanca, located in the Ancash region of Peru, has raised growing concerns in recent years due to the increasing magnitude and frequency of wildfires, mainly associated with human activities and climatic factors. The primary objective of this study is to determine the environmental impacts of wildfires in the Cordillera Blanca and the significance of its ecosystem services. The methodology employed was a systematic review of studies related to cryoturbated soils and the environmental impacts of wildfires, wildfire modeling, and strategies for wildfire prevention, mitigation, and control.The study highlighted the importance of the ecosystem services provided by the Cordillera Blanca and the negative environmental impacts caused by wildfires. Furthermore, climate modeling is identified as a necessary tool for assessing wildfire impacts in the Cordillera Blanca. However, there is currently a lack of a comprehensive database to enable reliable modeling. The research also underscores the need to incorporate wildfire prevention, mitigation, and control measures. These findings demonstrate that climate change is accelerating the degradation of the Cordillera Blanca. Strengthening wildfire prevention, mitigation, and control strategies is crucial to reducing their environmental impact.