UNLABELLED Residential air exchange rates (AERs) are vital in understanding the temporal and spatial drivers of indoor air quality (IAQ). Several methods to quantify AERs have been used in IAQ research, often with the assumption that the home is a single, well-mixed air zone. Since 2005, Health Canada has conducted IAQ studies across Canada in which AERs were measured using the perfluorocarbon ...

The present study aimed at investigating the effects of ventilation strategies on indoor air quality (IAQ) in schools. Measurements thermal environment and IAQ were performed over 5 school days 45 primary classrooms Gothenburg, Sweden, grouped into three categories according to their system: category A) natural or exhaust ventilation, automated window opening; B) balanced mechanical systems wit...

Since people spend most of their time inside buildings, indoor air quality (IAQ) remains a highlighted topic to ensure in the built environment improve public health, especially for vulnerable users. To achieve better (IEQ), some countries’ governments or regional institutions have developed and published reference guideline values various pollutants prevent IAQ from becoming adverse occupants....

Guests’ evaluation of indoor environmental quality (IEQ) is important for identifying environment problems in hotels and improving service quality. This paper aims to identify IEQ budget China improve them. Specifically, 2.06 million online reviews were used assess issues China’s four areas: acoustic environment, luminous air (IAQ) thermal environment. The influences the season, region type cus...

The indoor air quality (IAQ) of five low-energy London apartments has been assessed through the measurement 16 key pollutants, using continuous and diffusive methods across heating non-heating seasons. This case study approach aimed to assess presence pollutants within better understand role ventilation seasonal variations in quality. results indicate strong variations, driven by increased natu...

With a growing awareness of the potential hazards of chemical and biological agents in our homes, schools and workplaces, a greater emphasis has been placed on evaluating the role of mycotoxins and mycotoxin-producing fungi in our indoor environments. Now, more then ever, the potential health effects of airborne molds and other biological contaminants are being given serious consideration in IA...

Annals of Chemical Science Research Advanced Nanomaterials as UV Photocatalysts for IAQ Monitoring Ayesha Kausar1,2,3*, Ishaq Ahmad1,2,3, Zhu Tianle4 and Eisa MH5 1NPU-NCP joint international research center on Defects engineering, Northwestern Polytechnical University, China 2UNESCO-UNISA Africa Chair in Nano-sciences/Nanotechnology, iThemba LABS, South 3NPU-NCP National Centre Physics, Pakist...

Based on seven case studies of buildings that underwent different degrees of moisture and mold damage remediation, we aimed to develop methodology for assessment of the success of the remediation process. Methods used in gauging the success included technical monitoring of performance of building structures and heating, ventilation and air conditioning (HVAC) systems, microbial monitoring of in...

Buildings account for 40% of total global energy use and contribute towards 30% of total CO2 emissions. Heating ventilation and air conditioning (HVAC) systems are the major sources of energy consumption in buildings, and there has been extensive research focusing on efficiently control them. However, in most cases, this is achieved at the cost of sacrificing thermal, visual and/or IAQ comfort....