Influence of indoor environmental quality on the self-estimated performance of office workers in the tropical wet and hot climate of Cameroon

2019 ◽  
Vol 21 ◽  
pp. 141-148 ◽  
Author(s):  
Modeste Kameni Nematchoua ◽  
Paola Ricciardi ◽  
José A. Orosa ◽  
Somayeh Asadi ◽  
Ruchi Choudhary
2019 ◽  
Vol 11 (4) ◽  
pp. 1078 ◽  
Author(s):  
Carmen Calama-González ◽  
Rafael Suárez ◽  
Ángel León-Rodríguez ◽  
Simone Ferrari

In the Mediterranean climate, a large number of educational buildings suffer from discomfort due mostly to energy-deficient thermal envelopes and a lack of cooling systems. Impending climate change is expected to worsen overheating in classrooms, especially during heatwave periods. Therefore, the protection of window openings to reduce incident solar radiation while maintaining adequate indoor environmental quality must be considered a necessary key focus. The main objective of this research is to assess the influence of an egg-crate shading device on the indoor environmental quality of a classroom in Southern Spain. To do so, two classrooms—with and without this shading device—were simultaneously monitored over a whole year. The implementation of an egg-crate shading device allowed for a significant reduction of the incident solar radiation, both in summer and mid-season (around 45–50%), which objectively slightly conditioned indoor operative temperatures. Given the noticeable influence of the user patterns observed, indoor illuminance was also improved, as the rolling shutters tended to be opened at higher aperture levels.


PLoS ONE ◽  
2014 ◽  
Vol 9 (4) ◽  
pp. e95791 ◽  
Author(s):  
Chien-Cheng Jung ◽  
Hsiu-Hao Liang ◽  
Hui-Ling Lee ◽  
Nai-Yun Hsu ◽  
Huey-Jen Su

Author(s):  
Mohamad Awada ◽  
Burcin Becerik-Gerber ◽  
Gale Lucas ◽  
Shawn Roll

Abstract The outbreak of SARS-CoV-2 virus forced office workers to conduct their daily work activities from home over an extended period. Given this unique situation, an opportunity emerged to study the satisfaction of office workers with indoor environmental quality (IEQ) factors of their houses where work activities took place and associate these factors with mental and physical health. We designed and administered a questionnaire that was open for 45 days during the COVID-19 pandemic and received valid data from 988 respondents. The results show that low satisfaction with natural lighting, glare and humidity predicted eye related symptoms, while low satisfaction with noise was a strong predictor of fatigue or tiredness, headaches or migraines, anxiety, and depression or sadness. Nose and throat related symptoms and skin related symptoms were only uniquely predicted by low satisfaction with humidity. Low satisfaction with glare uniquely predicted an increase in musculoskeletal discomfort. Symptoms related to mental stress, rumination or worry were predicted by low satisfaction with air quality and noise. Finally, low satisfaction with noise and indoor temperature predicted the prevalence of symptoms related to trouble concentrating, maintaining attention or focus. Workers with higher income were more satisfied with humidity, air quality and indoor temperature and had better overall mental health. Older individuals had increased satisfaction with natural lighting, humidity, air quality, noise, and indoor temperature. Findings from this study can inform future design practices that focus on hybrid home-work environments by highlighting the impact of IEQ factors on occupant well-being.


2021 ◽  
pp. 1420326X2110165
Author(s):  
Nada Farrag ◽  
Manal A. S. Abou El-Ela ◽  
Sherif Ezzeldin

Sick building syndrome is a group of symptoms relatively common among office workers; such symptoms could have an impact on the worker's productivity. The aim of this research is to provide a better understanding of the relation between design elements, indoor environmental quality and sick building syndrome within office spaces in Cairo, Egypt. Results show that a healthy environment leads to higher level of office productivity. Several design elements were chosen to be analysed according to previous studies, and their relation to the indoor environmental quality was noted. The prevalence of these elements on sick building syndrome was studied. An empirical comparative study has been conducted within two administrative office buildings at Cairo campus of the ‘Arab Academy for Science Technology & Maritime Transport' in Egypt. Data collection was done by a self-administrated questionnaire. The questionnaire includes personal background, work design elements, socio-demographic elements and symptoms of sick building syndrome. Headache and fatigue were the most prevalent symptoms in both buildings. This study revealed that office comfort is the most important factor affecting office occupants and should be taken seriously when designing office spaces for better working environment free of sick building syndrome.


1999 ◽  
Author(s):  
S. Reynolds ◽  
P. Subramanian ◽  
G. Breuer ◽  
M. Stein ◽  
D. Black ◽  
...  

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