scholarly journals Towards Healthy Levels of Carbon Dioxide in Schools of the National Oil Company of Abu Dhabi

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Ali Abu-Rahmah ◽  
Rasheed Ahmad ◽  
Abdelmaoula Haboub ◽  
Yasmin Abu-Rahmah
Keyword(s):  
Carbon Dioxide ◽  
Sick Building Syndrome ◽  
Abu Dhabi ◽  
Average Value ◽  
Carbon Dioxide Concentrations ◽  
Air Quality Assessment ◽  
School Day ◽  
Sick Building ◽  
Air Intake ◽  
Ventilation Rates

In their annual indoor air quality assessment for ADNOC Schools, the Abu Dhabi Education Council has reported hazardous levels (∼3000 ppm) of carbon dioxide in fifteen classrooms. Exposure of 5,090 students attending the school for ∼eight hours (typical school day) to such high levels of carbon dioxide would induce adverse health conditions like headaches, drowsiness, and lack of concentration on the short term and serious diseases like asthma and sick building syndrome on the long term. The Health, Safety, and Environment committee of the school has identified clogged air intake vents and dirty AC filters as the main cause of the high carbon dioxide concentrations reported. The outdoor (ambient) carbon dioxide level is measured and has an eight-hour average value of 419 ppm. After cleaning thoroughly, the indoor levels of carbon dioxide, temperature, and relative humidity were monitored simultaneously in each classroom and have average values of ∼1117 ppm, ∼24°C, and ∼37%, respectively. In addition, the average indoor-to-outdoor ratio of carbon dioxide has been improved from 3000 / 419 ≈ 7.2 before cleaning the AC filters to an average ratio of ( 1,117 / 419 ≈ 2.7 ) after cleaning. Thus, ventilation rates in the classrooms monitored in this project are adequate and the corrective actions taken were effective.

scholarly journals INDOOR AIR QUALITY ASSESSMENT FOR A MULTISTOREY UNIVERSITY OFFICE BUILDING IN MALAYSIA

2019 ◽  
Vol 14 (4) ◽  
pp. 93-109
Author(s):  
Abd Halid Abdullah ◽  
Yee Yong Lee ◽  
Eeydzah Aminudin ◽  
Yeong Huei Lee
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Work Performance ◽  
Sick Building Syndrome ◽  
Office Building ◽  
Physical Parameters ◽  
Contributing Factors ◽  
Air Quality Assessment ◽  
Sick Building

The indoor air quality (IAQ) in office buildings should be assessed for public health concerns as it relates to work performance and productivity. Therefore, this paper aims to assess the IAQ in a university office building. From this investigation, the level of contaminated indoor air is examined, the significant causes and contributing factors of contaminated indoor air are determined and a recommendation to improve the existing condition has been proposed. The physical parameters measured include air temperature, air velocity, relative humidity, and concentrations of carbon dioxide (CO2), carbon monoxide (CO), sulphur dioxide (SO2), and also air particles. It was found that the number of air particles of 0.5 μm in diameter is about 197,748 particles/m3, while air particles of 5.0 μm in diameter is around 534 particles/m3. The collected data were then compared with a questionnaire and IAQ standards. In conclusion, the indoor air quality within the multi-storey central office building of Universiti Tun Hussein Onn Malaysia (UTHM) is acceptable and suitable for occupation even though there were countable symptoms of Sick Building Syndrome (SBS) among its occupants.

scholarly journals The quality of the microclimate in educational buildings subjected to thermal modernization

2019 ◽  
Vol 100 ◽  
pp. 00048
Author(s):  
Anna Lis ◽  
Nadiia Spodyniuk
Keyword(s):  
Carbon Dioxide ◽  
Energy Consumption ◽  
Energy Intensity ◽  
Sick Building Syndrome ◽  
Total Energy Consumption ◽  
Educational Buildings ◽  
Before And After ◽  
Sick Building ◽  
Microclimate Conditions

Realization and exploitation of buildings involves in European Union about 40% of total energy consumption [1]. One of the elements of rationalization of energy consumption in buildings are the undertakings related with thermal modernization of buildings. The actions related with reducing the energy intensity of buildings are not always correlated with improvement of microclimate conditions in the rooms. Errors in the implementation of the energy efficiency program led to the phenomenon of sick building syndrome. The paper presents the results of the research conducted in a few educational buildings before and after thermal modernization. The research includes energy consumption for the heating of building and selected parameters of the interior microclimate. This analysis was carried out to evaluate the influence of energy saving activities on microclimate interior conditions. It was found that in many cases commonly used gravitational ventilation is not able to ensure the proper conditions of the interior microclimate, and the concentrations of carbon dioxide recorded in the tested rooms exceeded the applicable standards.

Sick Building Syndrome Symptoms among the Staff in Schools and Kindergartens: are the Levels of Volatile Organic Compounds and Carbon Dioxide Responsible?

1996 ◽  
Vol 5 (4) ◽  
pp. 232-235
Author(s):  
Stefan Willers ◽  
Sven Andersson ◽  
Rolf Andersson ◽  
Jörgen Grantén ◽  
Christina Sverdrup ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Sick Building Syndrome ◽  
Volatile Organic ◽  
Sick Building

scholarly journals Legionnaires' disease and the sick-building syndrome

1989 ◽  
Vol 103 (2) ◽  
pp. 285-292 ◽  
Author(s):  
M. O'Mahony ◽  
A. Lakhani ◽  
A. Stephens ◽  
J. G. Wallace ◽  
E. R. Youngs ◽  
...  
Keyword(s):  
Legionella Pneumophila ◽  
Local Community ◽  
Cooling Tower ◽  
Case Control Study ◽  
Sick Building Syndrome ◽  
Air Conditioning System ◽  
Sick Building ◽  
Air Intake ◽  
Legionnaires Disease ◽  
Control Study

SUMMARYIn October 1985, six cases of legionnaires' disease were associated with a police headquarters building. Four were amongst staff who worked in or visited the communications wing of the headquarters and two cases occurred in the local community. A case-control study implicated the operations room of the communications wing as the main area associated with infection. This wing was air-conditioned and smoke tracer studies showed that drift from the exhaust as well as from the base of the cooling tower entered the main air-intake which serviced the air-conditioning system.Legionella pneumophilaserogroup 1 subgroup pontiac was isolated from water and sludge in the cooling tower pond. Contaminated drift from the top of the cooling tower was probably responsible for the two community cases. An additional discovery was that symptoms suggestive of the sick-building syndrome were associated with working in this wing.

scholarly journals Methane and carbon dioxide emission measurements in selected area of the Polish Western Carpathians

2018 ◽  
Vol 29 ◽  
pp. 00017
Author(s):  
Marzena Mojżysz ◽  
Adrianna Góra ◽  
Henryk Sechman ◽  
Piotr Guzy ◽  
Anna Twaróg
Keyword(s):  
Carbon Dioxide ◽  
Methane Emission ◽  
Land Surface ◽  
Chromatographic Analysis ◽  
Carbon Dioxide Emission ◽  
Western Carpathians ◽  
Light Hydrocarbons ◽  
Average Value ◽  
Carbon Dioxide Concentrations ◽  
Measurement Results

The paper presents measurement results of methane and carbon dioxide emission in Western Carpathians. The investigations were carried out with application of static chamber method in 10 stations. An emission and dynamics of changes within methane and carbon dioxide concentrations were examined by measuring the emission directly from the land surface as well as after drilling an additional hole. In total, 40 gas samples were taken, which were then subjected to chromatographic analysis. The measurements of methane and carbon dioxide emission have not shown significant emission values of these gases. The average value of methane emission from soil to the atmosphere at selected measurement sites was -0.451 mg*m-2*d-1, while the average methane emission with the use of the hole, equalled to -0.361 mg*m-2*d-1. The changes of carbon dioxide concetration were opposite. Higher emission of this gas was showed due to its natural escaping to the atmosphere with an average concetration of 1829,3 mg*m-2*d-1. Conducted studies show that methane and carbon dioxide emission are low in the studied area. It does not confirm the elevated values of light hydrocarbons and associated components which were previously recorded in the soil gas samples.

scholarly journals Correlation amongst Indoor Air Quality, Ventilation and Carbon Dioxide

2017 ◽  
Vol 9 (2) ◽  
pp. 179-192 ◽  
Author(s):  
N. L. Sireesha
Keyword(s):  
Carbon Dioxide ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Sick Building Syndrome ◽  
Well Being ◽  
Ventilation Rate ◽  
Indoor Contaminants ◽  
Sick Building ◽  
Carbon Dioxide Co2

The calculation of carbon dioxide (CO2)  intensities can be employed to see the quality of indoor air and ventilation. The studies undertaken till date have been distorted. The current study summaries the association amongst carbon dioxide and building air quality and ventilation, with carbon dioxide being the marker to evaluate air quality and ventilation performance. High carbon dioxide intensities may show insufficient ventilation per occupant and high indoor contaminants intensities, resulting in the Sick Building Syndrome (SBI) Symptoms. The researcher assessed the literature related to indoor air quality (IAQ), ventilation, and building-linked health issues in schools linked to CO2 discharges and recognised general indicated building-linked well-being signs found in schools. A high rise in the ventilation rate or enhancement in ventilation efficacy and/or indoor contaminant source regulation would be anticipated to reduce the occurrence of chosen signs to its optimum.

Sign in / Sign up

Export Citation Format

Share Document