Effects of exposure to carbon dioxide and bioeffluents on perceived air quality, self-assessed acute health symptoms, and cognitive performance

Indoor Air
X ZhangC Thyregod


The purpose of this study was to examine the effects on humans of exposure to carbon dioxide (CO2 ) and bioeffluents. In three of the five exposures, the outdoor air supply rate was high enough to remove bioeffluents, resulting in a CO2 level of 500 ppm. Chemically pure CO2 was added to this reference condition to create exposure conditions with CO2 at 1000 or 3000 ppm. In two further conditions, the outdoor air supply rate was restricted so that the bioeffluent CO2 reached 1000 or 3000 ppm. The same 25 subjects were exposed for 255 min to each condition. Subjective ratings, physiological responses, and cognitive performance were measured. No statistically significant effects on perceived air quality, acute health symptoms, or cognitive performance were seen during exposures when CO2 was added. Exposures to bioeffluents with CO2 at 3000 ppm reduced perceived air quality; increased the intensity of reported headache, fatigue, sleepiness, and difficulty in thinking clearly; and reduced speed of addition, the response time in a redirection task, and the number of correct links made in the cue-utilization test. This suggests that moderate concentrations of bioeffluents, but not pure CO2 , will result in deleterious effects on occup...Continue Reading


May 1, 1990·The International Journal of Neuroscience·T Akerstedt, M Gillberg
Aug 1, 1962·Perceptual and Motor Skills·H J EYSENCK, R A WILLETT
Apr 15, 2004·Allergy·Matthew MasoliGlobal Initiative for Asthma (GINA) Program
Aug 28, 2004·Indoor Air·Pawel Wargocki
May 24, 2007·The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS·M HayashibeA Hattori
Oct 17, 2007·Environmental Science & Technology·C J WeschlerWilliam W Nazaroff
Aug 27, 2009·Proceedings of the National Academy of Sciences of the United States of America·Armin Wisthaler, C J Weschler
Oct 30, 2010·Indoor Air·U Haverinen-ShaughnessyR J Shaughnessy
Apr 26, 2012·Journal of Occupational and Environmental Hygiene·Dai-Hua TsaiChang-Chuan Chan
Dec 19, 2013·Environmental Health : a Global Access Science Source·Jeannette T M RosbachBert Brunekreef


Jun 28, 2016·Sensors·Julian W Gardner, Timothy A Vincent
Mar 23, 2017·Indoor Air·A Persily, L de Jonge
Feb 13, 2018·Journal of Breath Research·Iván RuizErica S Forzani
Jun 19, 2018·International Journal of Environmental Health Research·Peter KapaloMartin Podolak
Dec 5, 2019·International Journal of Environmental Research and Public Health·Daxin DongJunye Xie
Jan 19, 2019·International Journal of Environmental Research and Public Health·Xiaodong CaoJoseph G Allen
Jun 20, 2020·Indoor Air·Bowen DuJeffrey A Siegel
Apr 29, 2020·International Journal of Environmental Research and Public Health·Vinh Van TranYoung-Chul Lee
Aug 10, 2018·Journal of Exposure Science & Environmental Epidemiology·Joseph G AllenJohn D Spengler
Oct 8, 2020·Journal of the Air & Waste Management Association·Mahmoud M M Abdel-Salam
Dec 18, 2020·The Science of the Total Environment·Yiyi ChenNeil Dunse
Feb 2, 2020·Environment International·Satbyul Estella KimHo Kim
Mar 24, 2021·Environmental Science and Pollution Research International·Xiaorui DengYadi Wang
Apr 6, 2021·International Journal of Hygiene and Environmental Health·Claudia C VassellaRoland Charrière
May 16, 2021·Indoor Air·Asit Kumar MishraKwok Wai Tham
Jun 21, 2019·Michael OakleyStephen Snow

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Hereditary Sensory Autonomic Neuropathy

Hereditary Sensory Autonomic Neuropathies are a group of inherited neurodegenerative disorders characterized clinically by loss of sensation and autonomic dysfunction. Here is the latest research on these neuropathies.

Spatio-Temporal Regulation of DNA Repair

DNA repair is a complex process regulated by several different classes of enzymes, including ligases, endonucleases, and polymerases. This feed focuses on the spatial and temporal regulation that accompanies DNA damage signaling and repair enzymes and processes.

Glut1 Deficiency

Glut1 deficiency, an autosomal dominant, genetic metabolic disorder associated with a deficiency of GLUT1, the protein that transports glucose across the blood brain barrier, is characterized by mental and motor developmental delays and infantile seizures. Follow the latest research on Glut1 deficiency with this feed.

Separation Anxiety

Separation anxiety is a type of anxiety disorder that involves excessive distress and anxiety with separation. This may include separation from places or people to which they have a strong emotional connection with. It often affects children more than adults. Here is the latest research on separation anxiety.

KIF1A Associated Neurological Disorder

KIF1A associated neurological disorder (KAND) is a rare neurodegenerative condition caused by mutations in the KIF1A gene. KAND may present with a wide range and severity of symptoms including stiff or weak leg muscles, low muscle tone, a lack of muscle coordination and balance, and intellectual disability. Find the latest research on KAND here.

Regulation of Vocal-Motor Plasticity

Dopaminergic projections to the basal ganglia and nucleus accumbens shape the learning and plasticity of motivated behaviors across species including the regulation of vocal-motor plasticity and performance in songbirds. Discover the latest research on the regulation of vocal-motor plasticity here.