Investigation of outdoor air pollutant, PM<sub>2.5</sub> affecting the indoor air quality in a high-rise building

Fu, Nuodi; Kim, Moon Keun; Chen, Bing; Sharples, Steve

doi:10.1177/1420326x211038279

Cited by 15 publications

(9 citation statements)

References 61 publications

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“…The low-dimensional discrete data of CFD results (i.e., air temperature and airflow velocity) on the roof of 48 buildings (see Figure 4) were obtained based on the low-dimensional model. Previous work 22 has been studied and described in detail in terms of experiments, simulations and validation of PM 2.5 concentrations, and are not repeated here. Considering that the wind direction is mostly positive in the southerly direction during the experiment, the low-dimensional discrete data of CFD results of the case of α = 0° was chosen for validation.…”

Section: Resultsmentioning

confidence: 99%

“…Many scholars have already conducted studies on mitigating urban PM 2.5 pollution mainly caused by traffic pollution, from the perspective of urban design. Rational urban designs have been adopted to achieve remarkable effects, for example, increasing the diffusion capacity of PM 2.5 pollution by adjusting the urban morphology 21,22 and roughness length of urban areas, 23 improving the ventilation ability of urban area by forming ventilation corridors through well-designed building layouts, 21,24 increasing urban air change rate by increasing urban airflow velocity through well-designed ventilation corridors 25 and planting urban greenbelts to block the dispersion of PM 2.5 . 20,26 At the same time, many studies on the mitigation of the UHI have yielded significant results.…”

Section: Introductionmentioning

confidence: 99%

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Environmental co-benefits of urban design to mitigate urban heat island and PM_2.5 pollution: Considering prevailing wind’s effects

Meng

Feng

et al. 2022

Indoor and Built Environment

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The impact of PM2.5 pollution and urban heat island (UHI) on sustainable urban development and human health has been a major concern for governments. Based on Computational Fluid Dynamics (CFD) simulation and on-site monitoring, this study investigated the airflow velocity, PM2.5 concentration and urban heat island intensity (UHII) distribution in the urban area at different prevailing wind directions, from the perspective of urban design. In order to validate the accuracy of CFD simulation results, on-site monitoring of temperature and airflow velocity was conducted on the roof of a building. A low-dimensional model was adopted to improve the efficiency of CFD data analysis. Moreover, based on the results of the low-dimensional model, PM2.5 concentration and UHII in urban areas at different prevailing wind directions were assessed by clustering analysis. The findings showed that when α = 0° and 90°, the average PM2.5 concentration was 28.9–56.8% (8.76–27.66 μg/m³) lower and the average UHII was 23.4–34.2% (0.8–1.15°C) higher, compared to α = 30°, 45° and 60°. Meanwhile, the downwind area suffers from more serious PM2.5 pollution and UHII than the upwind area. These findings could potentially provide a guide for future building/urban design to improve the urban environment from the perspective of building and road construction.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Environmental co-benefits of urban design to mitigate urban heat island and PM_2.5 pollution: Considering prevailing wind’s effects

Meng

Feng

et al. 2022

Indoor and Built Environment

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“…The speed at which levels return to normal will be based on building factors such as air change rates and the amount of ventilation available. Air change rates will vary depending on several factors such as weather (temperature difference between inside and outside and windspeed), the building design, and how air-tight the structure is, and occupant behaviour through activities such as cooking and smoking and use of windows and mechanical ventilation systems [75,76]. Indoor air pollution therefore should be an important consideration in building design, which needs to be considered alongside diverse resident lifestyles, behaviours, cultures, and the outdoor environment.…”

Section: Indoor Pm and Healthmentioning

confidence: 99%

Using Sensor Data to Identify Factors Affecting Internal Air Quality within 279 Lower Income Households in Cornwall, South West of England

Johnes

Sharpe

Menneer

et al. 2023

IJERPH

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(1) Background: Poor air quality affects health and causes premature death and disease. Outdoor air quality has received significant attention, but there has been less focus on indoor air quality and what drives levels of diverse pollutants in the home, such as particulate matter, and the impact this has on health; (2) Methods: This study conducts analysis of cross-sectional data from the Smartline project. Analyses of data from 279 social housing properties with indoor sensor data were used to assess multiple factors that could impact levels of particulate matter. T-Tests and Anova tests were used to explore associations between elevated PM2.5 and building, household and smoking and vaping characteristics. Binary logistic regression was used to test the association between elevated particulate matter and self-reported health; (3) Results: Of the multiple potential drivers of the particulate matter investigated, smoking and vaping were significantly associated with mean PM2.5. Following multivariate analysis, only smoking remained significantly associated with higher mean concentrations. Properties in which <15 cigarettes/day were smoked were predicted to have PM2.5 concentrations 9.06 µg/m3 higher (95% CI 6.4, 12.82, p ≤ 0.001) than those in which residents were non-smokers and 11.82 µg/m3 higher (95% CI 7.67, 18.19, p ≤ 0.001) where >15 cigarettes were smoked; (4) Conclusions: A total of 25% of social housing properties in this study experienced levels of indoor PM greater than WHO guideline levels for ambient air pollution. Although there are many factors that impact air quality, in this study the main driver was smoking. This highlights the importance of targeting smoking in indoor environments in future smoking cessation and control policy and practice and of understanding how pollutants interact in the home environment. There is also a need for further research into the impact on indoor air quality of vaping, particularly due to the rise in use and uncertainty of its long-term impact.

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“… 25 In the roofing fiber-cement industry, cement dust is generated in numerous processes, such as blending and pouring, racking and curing, and de-palleting and skid. 26 …”

Section: Introductionmentioning

confidence: 99%

“…25 In the roofing fiber-cement industry, cement dust is generated in numerous processes, such as blending and pouring, racking and curing, and de-palleting and skid. 26 To date, there have been limited studies in Indonesia regarding the effect of PM 2.5 on workers. Specifically, no study has been conducted on fiber cement roof industry workers in Indonesia.…”

Section: Introductionmentioning

confidence: 99%

PM_2.5 exposure and lung function impairment among fiber-cement industry workers

Nasri

Putri

Sunarno

et al. 2023

Journal of Public Health Research

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Introduction: Numerous studies have reported respiratory impairment by exposure to fine particulate matter (PM2.5). However, limited studies investigated its effects on fiber cement roof workers. Thus, our study evaluated the impact of PM2.5 on pulmonary impairments among workers and its risk factors. Design and Method: A total of 131 fiber cement roof workers have been chosen based on the inclusive criteria. Size-segregated particles were measured in the workplace of workers. Interview and spirometry tests were obtained to determine the respiratory impairments. Result: The results showed the mean concentrations of PM2.5 had exceeded the WHO and US-EPA standards. A quarter of workers had lung restriction, lung obstruction, and mixed. Workers are most likely to have shortness of breath and wheezing. A significant correlation was found between smoking, production workers, and a long work period with abnormal lung function. Fiber cement roof workers are significantly at risk of exposure to PM2.5. They are most likely to acquire abnormal lung function due to PM2.5 exposure. Conclusion: Our study recommended the industry constantly maintain its programs. The industry should keep using the wet process to prevent dust generation and water suppression from preventing dust spread, as well as to wear respiratory protection for workers to avoid PM2.5 exposure. We recommended as well to the industry to implement follow-up programs for workers with abnormal lung function. Further action is needed to protect the workers’ occupational health in the fiber cement roof industry.

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Investigation of outdoor air pollutant, PM_2.5 affecting the indoor air quality in a high-rise building

Cited by 15 publications

References 61 publications

Environmental co-benefits of urban design to mitigate urban heat island and PM_2.5 pollution: Considering prevailing wind’s effects

Environmental co-benefits of urban design to mitigate urban heat island and PM_2.5 pollution: Considering prevailing wind’s effects

Using Sensor Data to Identify Factors Affecting Internal Air Quality within 279 Lower Income Households in Cornwall, South West of England

PM_2.5 exposure and lung function impairment among fiber-cement industry workers

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Investigation of outdoor air pollutant, PM2.5 affecting the indoor air quality in a high-rise building

Cited by 15 publications

References 61 publications

Environmental co-benefits of urban design to mitigate urban heat island and PM2.5 pollution: Considering prevailing wind’s effects

Environmental co-benefits of urban design to mitigate urban heat island and PM2.5 pollution: Considering prevailing wind’s effects

Using Sensor Data to Identify Factors Affecting Internal Air Quality within 279 Lower Income Households in Cornwall, South West of England

PM2.5 exposure and lung function impairment among fiber-cement industry workers

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Investigation of outdoor air pollutant, PM_2.5 affecting the indoor air quality in a high-rise building

Environmental co-benefits of urban design to mitigate urban heat island and PM_2.5 pollution: Considering prevailing wind’s effects

Environmental co-benefits of urban design to mitigate urban heat island and PM_2.5 pollution: Considering prevailing wind’s effects

PM_2.5 exposure and lung function impairment among fiber-cement industry workers