Comparative analysis of indoor air quality in green office buildings of varying star levels based on the grey method

Wu, Peihao; Fang, Zhaosong; Luo, Haiwei; Zheng, Zhimin; Zhu, Kaiyue; Yang, Yanping; Zhou, Xiaoqing

doi:10.1016/j.buildenv.2021.107690

Cited by 17 publications

(16 citation statements)

References 28 publications

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“…Chinese green certificated buildings of 2‐ and 3‐star labels presented, on average, lower levels of PM 2.5 (18 and 21 μg/m 3 , respectively) than 1‐star and ordinary office buildings (29 and 25 μg/m 3 , respectively) 28 . Similar to what was discussed for CO 2 levels, these differences may be justified by the fact that 1‐star and ordinary buildings are ventilated through a natural strategy comprising the opening of doors and windows and being directly impacted by outdoor levels, while other offices used mechanical ventilation.…”

Section: Discussionmentioning

confidence: 91%

“…Overall, the main goal of the selected publications was the characterization of indoor air conditions in office settings. Some of the eligible studies considered in their design the following specific objectives: to investigate differences in the assessed environmental parameters according to building features, namely natural ventilated vs. mechanically ventilated buildings 27 and green vs. ordinary buildings; 28,29 to study the association between the prevalence of Sick Building Syndrome (SBS)‐like symptoms and IAQ levels in offices; 30,31 to collect data on the office workers' satisfaction for the definition of evidence‐based threshold levels; 25 to investigate differences in the exposure to air pollution in traditional offices and home offices (remote working), within the context of the SARS‐CoV‐2 pandemic 32 …”

Section: Resultsmentioning

confidence: 99%

“…In the work carried out by Geng et al, 29 2‐ and 3‐star green office buildings were assessed and more than half of the pool of CO 2 readings in were below 600 ppm. In turn, Wu et al 28 compared 6 certificated office buildings (from 1 to 3 stars, 2 of each classification) with 2 ordinary office buildings and found that green certificated buildings demonstrated slightly better ventilation conditions (516–591 ppm) than ordinary office buildings (685 ppm).…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

A systematic review of ventilation conditions and airborne particulate matter levels in urban offices

et al. 2022

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Many working activities are carried out in office buildings that are located in urban areas. Several studies have shown that these workplaces are likely to present poor indoor environmental quality (IEQ) due to inadequate ventilation rates, compromised thermal comfort conditions, and/or high concentration of air pollutants, such as particulate matter. This study aimed to review ventilation conditions, based on carbon dioxide (CO 2 ) concentrations, and indoor airborne particulate matter (PM 2.5 and PM 10

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Section: Discussionmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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A systematic review of ventilation conditions and airborne particulate matter levels in urban offices

et al. 2022

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“…An acceptable CO2 value is normally 400 ppm for indoor environments even though this value may potentially reach between 600 and 800 ppm with and this increase primarily due to human respiration (Hays et al, 1995). These values can easily rise to 1000 ppm or more (Wu et al, 2021), resulting in symptoms such as loss of concentration, states of drowsiness, headaches, among others. Thus, we may clearly perceive the importance of reducing CO2 levels in interior spaces to drive increases in the IAQ for building occupants.…”

Section: Indoor Air Quality Vs Health Effectsmentioning

confidence: 99%

Indoor air quality for sustainability, occupational health and classroom environments through the application of earth plaster

Gomes

Miranda

2022

Proceedings HERITAGE 2022 - International Conference on Vernacular Heritage: Culture, People and Sustainability

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Clearly, the construction sector makes a large scale contribution to environmental degradation and urgently needs to change its principles to focus on environmentally sustainable construction. Earth, as a building material, has a potential cradle to cradle life cycle, thus, achieving a circular economy. This material also displays numerous advantages, namely: economic and ecological and as well as the ease of reuse and recyclability. The earth material also registers a high capacity to absorb and release water vapor, which helps to balance the relative humidity and the internal temperature, promoting not only the comfort of occupants but also the quality of the air in buildings. The materials applied in construction hold great influence over the indoor air quality (IAQ). IAQ ranks as such a crucial issue that it appears in the seventeen 2030 Agenda SDGs. As about 90% of our time is spent inside buildings, whether for leisure or work, it is essential to live in spaces with adequate and healthy interior environments. According to the World Health Organization, good air quality represents a basic requirement for life and is a determining factor for the health and well-being of occupants of indoor spaces. In schools, and due to the complex and diversified activities developed there, in addition to adverse health effects, indoor air quality may also have a direct impact on student concentration and performance. Understanding and studying materials, specifically earth mortars, with the ability to capture pollutants and reduce their concentration while helping to regulate the temperature and relative humidity conditions, and student comfort, is thus extremely important. Hence, with the objective of improving the development of construction strategies, this article details and highlights the beginning of the RESpira project.

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“…Recent evidence suggests that exposure to air particles and gases can accelerate neurodegenerative diseases. Several studies have illustrated that the rapid development of urbanization necessitates higher requirements for air quality (Wang et al 2021;Wu et al 2021). Small-particle pollution has become increasingly serious, as toxic particles in the air can threaten human health.…”

Section: Introductionmentioning

confidence: 99%

Filtration efficiency improvement of air filter paper for fine particles by electrospinning technology

Hui

et al. 2021

BioRes

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Due to great advantages, such as simple operation, high porosity, and good fiber continuity, the working principle and research progress of electrospinning technology was studied and polyvinyl alcohol (PVOH) nanofibers were prepared via this process. Air filter paper was used as the receiving substrate to prepare electrospun nano air filter paper (NAFP). The PVOH concentration, static voltage, and receiving distance, were tested to explore the influence of spinning parameters on the filtration performance. Further, the microfiber morphology of the electrospun NAFP was observed. The performance of filter paper, including air permeability, pore size, initial resistance, filtration efficiency, and dust retention, were tested. The results showed that the electrospun NAFP had better filtration performance compared to the air filter paper, and simultaneously they had lower initial resistance and higher precision filtration efficiency. The nanofiber influenced the surface of the air filter paper, as it sharply reduced the pore size. When the spinning condition was 10%, 21 kV, and 15 cm, the pore size decreased approximately 0.6 times of the original, which meant the electrospun NAFP could capture particles ≥ 0.2 μm in size. Finally, after three repeated uses, the good filtration performance was maintained.

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Comparative analysis of indoor air quality in green office buildings of varying star levels based on the grey method

Cited by 17 publications

References 28 publications

A systematic review of ventilation conditions and airborne particulate matter levels in urban offices

A systematic review of ventilation conditions and airborne particulate matter levels in urban offices

Indoor air quality for sustainability, occupational health and classroom environments through the application of earth plaster

Filtration efficiency improvement of air filter paper for fine particles by electrospinning technology

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