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PM2.5 pollution has become a severe problem in China due to rapid industrialization and high energy consumption. It can cause increases in the incidence of various respiratory diseases and resident mortality rates, as well as increase in the energy consumption in heating, ventilation, and air conditioning (HVAC) systems due to the need for air purification. This paper reviews and studies the sources of indoor and outdoor PM2.5, the impact of PM2.5 pollution on atmospheric visibility, occupational health, and occupants’ behaviors. This paper also presents current pollution status in China, the relationship between indoor and outdoor PM2.5, and control of indoor PM2.5, and finally presents analysis and suggestions for future research.

Novel metal-organic frameworks (MOFs) based solid catalysts have been synthesized by encapsulating Hemin into the HKUST-1 MOF materials. These have been first applied in the chemiluminescence field with outstanding performance. The functionalized MOFs not only maintain an excellent catalytic activity inheriting from Hemin but also can be cyclically utilized as solid mimic peroxidases in the neutral condition. The synthesized Hemin@HKUST-1 composites have been used to develop practical sensors for H2O2 and glucose with wide response ranges and low detection limits. It was envisioned that catalyst-functionalized MOFs for chemiluminescence sensing would have promising applications in green, selective, and sensitive detection of target analytes in the future.

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In Colombia, the lack of application of knowledge in VIS housing designs can be evidenced, since these designs are standardized and do not take into account the different types of climates existing in the country. Then it is worth asking: What is the optimal thermal behavior for the design of the envelopes of the VIS houses in the city of Tunja that meet the minimum requirements of habitability? The methodological purpose of the research is to analyze the thermal behavior of the envelopes of the VIS houses in the city of Tunja, by obtaining the thermal loads where different thermal control strategies will be evaluated with the purpose of generating recommendations for the design of this housing typology. As a result it was found that the traditional systems of construction of the VIS housing does not respond to the thermal comfort required. By applying a clean technology such as BTC blocks on the façade, it shows improvements in thermal behavior at its U-values of 30%. To conclude, it is identified that in the city of Tunja, under the current conditions it is not possible to comply with the thermal comfort required by the national standard using traditional construction systems. For this reason, it is necessary to implement materials with clean technologies, since it improves the thermal insulation of the envelopes in their part of the opaque areas in the VIS houses and allows compliance with the minimum requirements of habitability.

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