Assessment of Indoor Air Quality and Users Perception of a Renovated Office Building in Manchester

Alomirah, Haya Fahad; Moda, Haruna Musa

doi:10.3390/ijerph17061972

Cited by 18 publications

(19 citation statements)

References 28 publications

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“…Possible reasons for the observed time trends of reported symptoms in the present study could be multifactorial, involving, for example, workload of the office workers that may not have been consistent over time, as well as changes in office landscapes, construction, and building materials—affecting indoor climate and concentration patterns of air pollutants. Occupants of offices with higher concentrations of selected air pollutants have been shown to be more likely to report health symptoms in several recent studies [ 24 , 28 , 29 , 30 ], though no findings of such relationships have been reported [ 31 ]. Furthermore, trends in office layouts have changed during the last few decades, from cellular, private spaces, to more shared spaces and open-plan office landscapes [ 16 ].…”

Section: Discussionmentioning

confidence: 99%

Changes in Reported Symptoms Attributed to Office Environments in Sweden between 1995 and 2020

Egfors

Gunnarsson

Ricklund

2022

IJERPH

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Non-specific building-related symptoms (NBRSs) describe various symptoms in those affected. Questionnaires are the first step in investigating suspected NBRSs in office environments and have been used for over two decades. However, changes in reporting of symptoms among office workers over time are currently unknown. The overall aim was thus to investigate if reported symptoms and perceived causality to the office environment have changed during 25 years of using the MM 040 NA Office questionnaire. A cross-sectional study of 26,477 questionnaires from 1995–2020 was conducted, where 12 symptoms and perceived causality to office environment were examined using logistic regression analyses of 5-year groups adjusted for sex and atopy. Reporting trends in the year groups varied slightly among symptoms, but eight symptoms were statistically significant in the 2015–2020 group compared to the 1995–1999 group. Seven symptoms had increased: fatigue, heavy-feeling head, headache, difficulties concentrating, itchy/irritated eyes, congested/runny nose, and dry/red hands. One symptom decreased: hoarseness/dry throat. Perceived causality of symptoms to the office environment decreased to a statistically significant degree in 2015–2020 for 11 symptoms, and there was an overall trend of decreasing perceived causality throughout the year groups for most symptoms. The observed time trends suggest a need for up-to-date reference data, to keep up with changes in symptom reporting in office environments over time.

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Section: Discussionmentioning

confidence: 99%

Changes in Reported Symptoms Attributed to Office Environments in Sweden between 1995 and 2020

Egfors

Gunnarsson

Ricklund

2022

IJERPH

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“…In paper [45], the focus is on air exchange in the summer when considering energy savings. Posts [46][47][48][49] are devoted to the issue of air exchange in various types of buildings, the increase in CO 2 and its impact on users.…”

Section: Measurement Of Carbon Dioxide Concentration Valuesmentioning

confidence: 99%

Quantification of Air Change Rate by Selected Methods in a Typical Apartment Building

2021

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An important parameter that affects indoor climate of buildings and also ventilation heat losses and gains is the speed of air change between the outdoor environment and the interior of buildings. Indoor air quality is therefore significantly associated with ventilation. Quantification of air change rate is complicated, because it is impacted by many parameters, the most variable of which is air flow. This study focuses on the determination and comparison of air change rate values in two methods by quantification of the aerodynamic coefficient Cp = Cpe − Cpi, so-called “aerodynamic quantification of the building” and the methodology based on “experimental measurements of carbon dioxide”. The study describes and takes into account the effect of wind, building parameters and air permeability for the building using “aerodynamic quantification of the building”. The paper compares these calculated results with the values obtained from experimental measurements method of carbon dioxide in a selected reference room in apartment building and evaluates the accuracy of the prediction of the air exchange rate obtained by these methods. At higher wind speeds the values of air change rate with considering the effect of openings are closer to the values obtained based on experimental measurements of carbon dioxide and the difference between the values without considering the effect of openings increases significantly.

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“…It was concluded the low RH was also attributed to the season in which the sampling was performed (October–November), which is usually cool and dry for Jos and its environs [ 43 ]. Though the relationship between health, indoor air humidity and pollution is complex and challenging, several studies in the office environment have shown associations between low RH (5–30%), with increasingly prevalent complaints about perceived dry and stuffy air, and sensory irritation of the eyes and upper airways [ 44 , 45 , 46 ]. In a study of 484 office workers and 21 greenhouse employees in normal and well-ventilated office buildings, though dependent on psychosocial and environmental factors, low RH produced a few percentage reductions in visual acquisition for certain office tasks among young students that were exposed for 4 h, an effect that was expected to be more pronounced among the elderly.…”

Section: Resultsmentioning

confidence: 99%

Indoor Air Quality Monitoring and Characterization of Airborne Workstations Pollutants within Detergent Production Plant

Gushit

Mohammed

Moda

2022

Toxics

Self Cite

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The indoor air quality (IAQ) of five workstations within a detergent production unit was monitored. Particulate matter (PM) was measured using a gravitational settlement method, and later characterized. To ascertain the quality of indoor air within the workstations, which could directly or indirectly affect the health and performance of the workers, a physical inspection of the plant premises was undertaken. The mean value of the following air-quality parameters; particulate matter(PM2.5), particulate matter (PM10), formaldehyde (HCHO), volatile organic compounds (VOCs), carbon dioxide (CO2), temperature (T) and percent relative humidity (%RH) were obtained within the range of 24.5–48.5 µg/m3, 26.75–61.75 µg/m3, 0.0–0.012 mg/m3, 0.09–1.35 mg/m3, 1137–1265 ppm, 25.65–28.15 °C and 20.13–23.8%, respectively. Of the particulate matter components characterized, sodium oxide (Na2O)—25.30 mg/m3, aluminum oxide (Al2O3)—22.93 mg/m3, silicon dioxide (SiO2)—34.17 mg/m3, sulfur trioxide (SO3)—41.57 mg/m3, calcium oxide (CaO)—10.94 mg/m3 and iron III oxide (Fe2O3)—19.23 mg/m3, were of significance. These results, compared with international standards for industrial indoor air quality, suggest that indoor air contamination emanating from the chemicals used in production workstations is traced to the design of the plant structures and the activities carried out within the workstations.

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Assessment of Indoor Air Quality and Users Perception of a Renovated Office Building in Manchester

Cited by 18 publications

References 28 publications

Changes in Reported Symptoms Attributed to Office Environments in Sweden between 1995 and 2020

Changes in Reported Symptoms Attributed to Office Environments in Sweden between 1995 and 2020

Quantification of Air Change Rate by Selected Methods in a Typical Apartment Building

Indoor Air Quality Monitoring and Characterization of Airborne Workstations Pollutants within Detergent Production Plant

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