Indoor air quality in public utility environments—a review

Śmiełowska, Monika; Marć, Mariusz; Zabiegała, Bożena

doi:10.1007/s11356-017-8567-7

Cited by 127 publications

(90 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The density of flats is also influenced by the layout of flats that coincide between one housewith another house. House density per unit and coinciding layout will increase the potential for disease transmission, especially airborne disease [5].…”

Section: Discussionmentioning

confidence: 99%

Indoor Air Quality And Symptoms of Acute Respiratory Infection In Children Under Five In Marunda Public Flats North Jakarta

Anggraeni¹,

Iriani²

2017

Proceedings of the 1st International Integrative Conference on Health, Life and Social Sciences (ICHLaS 2017)

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Indoor Air Quality And Symptoms of Acute Respiratory Infection In Children Under Five In Marunda Public Flats North Jakarta

Anggraeni¹,

Iriani²

2017

Proceedings of the 1st International Integrative Conference on Health, Life and Social Sciences (ICHLaS 2017)

View full text Add to dashboard Cite

show abstract

“…As described in the literature [2][3][4][5], a long-term staying in an environment with a bad IAQ results in the occurrence of different complaints: headaches, eyes and skin irritation, nausea, dizziness etc. The main reason for the poor IAQ in buildings is the high CO 2 concentration in rooms, produced by the high human occupancy and inadequate ventilation.…”

Section: Introductionmentioning

confidence: 99%

Carbon Dioxide Human Gains—A New Approach of the Estimation

Rodero

Krawczyk

2019

Sustainability

View full text Add to dashboard Cite

Human health is dependent on the Indoor Air Quality (IAQ) of residential and public buildings, where people spend a substantial amount of time. Part of IAQ parameters, like temperature or humidity influence the thermal comfort of users, whereas too high carbon dioxide concentration (CO 2 ) could cause various complaints or diseases. In buildings like offices and schools, where we have a brush with a high density of users, the main source of CO 2 is simply people. The type of their activity brings higher or lower carbon dioxide gains, that must be taken into account to design and properly use room ventilation, allowing recommended CO 2 levels not to be exceeded. This paper presents an approach to marking human CO 2 generation off by using an experimental method. The method was verified based on measuring results of six test series conducted in different types of rooms at Bialystok University of Technology (Poland) during lectures, meetings, projects and laboratories. Carbon dioxide gains were comparable with an average value of 0.0045 L/s, which corresponds to theoretical CO 2 generation rates that are symptomatic of males and females, between 16 and 30 years old, with low physical activity.Sustainability 2019, 11, 7128 2 of 12 dioxide concentration, is not considered particularly dangerous as such its high level could result in a room occupants becoming drowsy, fatigued and with insufficient ability to concentrate. A review of the literature conducted by Johnsona et al., [8] showed that there was an association between low-level exposure to CO 2 beginning at 700 ppm and building-related symptoms, whereas respiratory symptoms were indicated in children in a case of indoor CO 2 concentrations higher than 1000 ppm. However it was not possible to eliminate other causes of health problems. As highlighted by Meciarova et al., [9], CO 2 is not considered a pollutant of concern, but as an indicator of how well other people-related pollutants are controlled-particularly odor-causing compounds. As underlined by Lu et al., [6], the concentration of CO 2 in office buildings is primarily dependent on occupant density and ventilation rates. It is worth noting that CO 2 concentration is often found above recommendations in buildings with high people density and insufficient ventilation, especially schools [10][11][12][13][14][15][16][17]. Problems with CO 2 concentration in residential buildings were discussed by Mainka et al., [18].Nowadays, the ASHRAE (American Society of Heating, Refrigerating and Air Conditioning Engineers) standard [19] recommends indoor CO 2 concentrations less than 700 ppm above the outdoor concentration, giving also a guideline of 1000 ppm. Thus, the CO 2 recommended level is significantly lower than several years ago. As analyzed by Persily et al., [20] in 1981 the CO 2 limit of 4500 mg/m 3 (2500 ppm) was proposed in an appendix, while in 1989 the value was decreased by 60% to 1800 mg/m 3 (1000 ppm) and such a level was maintained in the 1999 and 2001 versions of the Standard 62.Sufficiently high venti...

show abstract

“…VOCs are present in vehicle emissions, industrial effluents, and also in indoor ambient. For these reasons, the scientific community is undertaking significant efforts to remove this type of pollutants [4]. The study of propene abatement is interesting because this molecule is a plausible representative example of low molecular weight VOCs and has some problems concerning the environment and human health [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Photo-microfluidic chip reactors for propene complete oxidation with TiO2 photocalyst using UV-LED light

Fernández-Català

Garrigós-Pastor

Berenguer-Murcia

et al. 2019

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

In this study, we present a photo-microreactor illuminated with a low power LED light as a highly efficient system to achieve the total oxidation of propene using a TiO2 photocatalyst. This abatement system (photo-microreactor) consists in an immobilized benchmark photocatalyst (TiO2, P25) inside a commercial glass microchannel chip (UV transparent microfluidic chips, internal volume of 9.5 μL) using a packed-bed configuration without any previous treatment. The P25 inside the microreactor shows a nearly homogenous filling of the particles resulting in a low pressure drop throughout the system. In terms of propene abatement (Catalytic activity), the P25 inside the commercial microreactor reaches total propene conversion (100%) under flow conditions at low concentrations (100 ppmv) due to shorter diffusion distances, large surface-to-volume ratios, efficient heat transfer , and the improved light penetration inside the microchannel.Moreover, the prepared microreactor uses a low consumption power (LED), low residence time and presents a relatively low pressure drop making this device (P25 inside a commercial microreactor) very interesting for the abatement of volatile organic compounds at low concentration for example at indoor ambient due to its small size (45 x 15 mm).

show abstract

Indoor air quality in public utility environments—a review

Cited by 127 publications

References 70 publications

Indoor Air Quality And Symptoms of Acute Respiratory Infection In Children Under Five In Marunda Public Flats North Jakarta

Indoor Air Quality And Symptoms of Acute Respiratory Infection In Children Under Five In Marunda Public Flats North Jakarta

Carbon Dioxide Human Gains—A New Approach of the Estimation

Photo-microfluidic chip reactors for propene complete oxidation with TiO2 photocalyst using UV-LED light

Contact Info

Product

Resources

About