scholarly journals Chemical Characterization of the Indoor Air Quality of a University Hospital: Penetration of Outdoor Air Pollutants

2017 ◽  
Vol 14 (5) ◽  
pp. 497 ◽  
Author(s):  
Paul Scheepers ◽  
Luuk Van Wel ◽  
Gwendolyn Beckmann ◽  
Rob Anzion
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Pollutants ◽  
Chemical Characterization ◽  
University Hospital ◽  
Outdoor Air

Assessing Future Trends in Indoor Air Quality

1990 ◽  
Vol 6 (5) ◽  
pp. 103-115 ◽  
Author(s):  
H. J. Van De Wiel ◽  
E. Lebret ◽  
W. K. Van Der Lingen ◽  
H. C. Eerens ◽  
L.H. Vaas ◽  
...  
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Pollutants ◽  
Housing Stock ◽  
International Health ◽  
Health Organizations ◽  
Dutch Housing ◽  
International Health Organizations

Several national and international health organizations have derived concentration levels below which adverse effects on men are not expected or levels below which the excess risk for individuals is less than a specified value. For every priority pollutant indoor concentrations below this limit are considered “healthy.” The percentage of Dutch homes exceeding such a limit is taken as a measure of indoor air quality for that component. The present and future indoor air quality of the Dutch housing stock is described for fourteen air pollutants. The highest percentages are scored by radon, environmental tobacco smoke, nitrogen dioxide from unvented combustion, and the potential presence of housedust mite and mould allergen in damp houses. Although the trend for all priority pollutants is downward the most serious ones remain high in the coming decades if no additional measures will be instituted.

Chemical characterization of indoor air quality in Parisian homes

Aerobiologia ◽  
1990 ◽  
Vol 6 (1) ◽  
pp. 28-31 ◽  
Author(s):  
Sophie Barguil ◽  
Yvon Le Moullec ◽  
Alain Person ◽  
Anne-Marie Laurent ◽  
Bernard Festy
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Chemical Characterization

scholarly journals Integrated Evaluation of Indoor Particulate Exposure: The VIEPI Project

2020 ◽  
Vol 12 (22) ◽  
pp. 9758 ◽  
Author(s):  
Armando Pelliccioni ◽  
Paolo Monti ◽  
Giorgio Cattani ◽  
Fabio Boccuni ◽  
Marco Cacciani ◽  
...  
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Chemical Characterization ◽  
Indoor Airflow ◽  
Long Term Study ◽  
Short And Long Term ◽  
Particulate Exposure

Despite the progress made in recent years, reliable modeling of indoor air quality is still far from being obtained. This requires better chemical characterization of the pollutants and airflow physics included in forecasting tools, for which field observations conducted simultaneously indoors and outdoors are essential. The project “Integrated Evaluation of Indoor Particulate Exposure” (VIEPI) aimed at evaluating indoor air quality and exposure to particulate matter (PM) of humans in workplaces. VIEPI ran from February 2016 to December 2019 and included both numerical simulations and field campaigns carried out in universities and research environments located in urban and non-urban sites in the metropolitan area of Rome (Italy). VIEPI focused on the role played by micrometeorology and indoor airflow characteristics in determining indoor PM concentration. Short- and long-term study periods captured diurnal, weekly, and seasonal variability of airflow and PM concentration. Chemical characterization of PM10, including the determination of elements, ions, elemental carbon, organic carbon, and bioaerosol, was also carried out. Large differences in the composition of PM10 were detected between inside and outside as well as between different periods of the day and year. Indoor PM composition was related to the presence of people, to the season, and to the ventilation regime.

scholarly journals Investigation of air pollutants in rural nursery school – a case study

2018 ◽  
Vol 28 ◽  
pp. 01022 ◽  
Author(s):  
Anna Mainka ◽  
Elwira Zajusz-Zubek ◽  
Barbara Kozielska ◽  
Ewa Brągoszewska
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Pollutants ◽  
Nursery School ◽  
Indoor Environments ◽  
Outdoor Air ◽  
Older Children ◽  
Nursery Schools ◽  
Public Health Challenge

Children’s exposure to air pollutants is an important public health challenge. Indoor air quality (IAQ) in nursery school is believed to be different from elementary school. Moreover, younger children are more vulnerable to air pollution than higher grade children because they spend more time indoors, and their immune systems and bodies are less mature. The purpose of this study was to evaluate the indoor air quality (IAQ) at naturally ventilated rural nursery schools located in Upper Silesia, Poland. We investigated the concentrations of volatile organic compounds (VOCs), particulate matter (PM), bacterial and fungal bioaerosols, as well as carbon dioxide (CO2) concentrations in younger and older children's classrooms during the winter and spring seasons. The concentration of the investigated pollutants in indoor environments was higher than those in outdoor air. The results indicate the problem of elevated concentrations of PM2.5 and PM10 inside the examined classrooms, as well as that of high levels of CO2 exceeding 1,000 ppm in relation to outdoor air. The characteristics of PM and CO2 levels were significantly different, both in terms of classroom occupation (younger or older children) and of season (winter or spring).

scholarly journals Caracterización de bioaerosoles en tres edificaciones administrativas de Bogotá, 2012-2013. (Characterization of Bioaerosols in Administrative Buildings in Bogotá 2012-2013.)

2015 ◽  
Vol 6 (1) ◽  
pp. 41 ◽  
Author(s):  
R. Y. Cardozo Becerra ◽  
L. G. Araque Muñoz
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Penicillium Sp ◽  
Sick Building ◽  
Aspergillus Sp

ResumenEstudio observacional de corte transversal realizado en tres edificios administrativos de la ciudad de Bogotá, los cuales evidencian presencia de bioaerosoles cultivables y contables, contaminantes que podrían afectar la calidad del aire interior. Los bioaerosoles encontrados fueron comunes en los tres edificios, y en los siguientes porcentajes, en su orden: Aspergillus sp.: 77,2% (61) de las muestras tomadas para el edifico uno, 91% (30) para el dos y 100% (19) para el tres, Penicillium sp.: 60,8% (48) de las muestras para el edificio uno, 87,9% (29) para el edificio dos y 94,7% (18) para el edificio tres. Otro género encontrado en porcentajes altos en los tres edificios fue el Cladosporium sp. Los hallazgos se correlacionan con lo reportado por la literatura. Se hace relevante el monitoreo de la calidad del aire interior y el mantenimiento adecuado de los edificios, especialmente de los sistemas de ventilación mecánica, para así disminuir el riesgo biológico para los habitantes de edificios administrativos y evitar que estas construcciones arquitectónicas sean clasificadas dentro del síndrome del edificio enfermo. AbstractAn observational cross-sectional study which reveals the presence of some air pollutants such as, cultivable and accounting bioaerosols, that can aect the indoor air quality of the three administrative buildings analyzed, located in Bogotá city. A cultivable and accounting bioaerosols similar high percentage was found in all the analyzed samples of the three buildings. Aspergillus sp. was detected in 77.2% (61 samples), 91% (30 samples) and 100% (19 samples) of the whole buildings samples, number one, two and three respectively. On the other hand Penicillium sp. was identify in 60.8% (48 samples), 87.9% (29 samples) and 94.7% (18 samples) for the buildings number one, two and three respectively. In addition to these pollutants, it was found Cladosporium sp. All the results are correlated with the reported literature values. Therefore it is relevant to monitor the indoor air quality and maintenance of the buildings, specially the mechanical ventilation systems, in order to diminish the inhabitants biological risk due to the pollutants, and to avoid that these constructions can be classified within the syndrome of the sick building.

scholarly journals Investigation of outdoor air pollutant, PM2.5 affecting the indoor air quality in a high-rise building

2021 ◽  
pp. 1420326X2110382
Author(s):  
Nuodi Fu ◽  
Moon Keun Kim ◽  
Bing Chen ◽  
Stephen Sharples
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Pollutants ◽  
Outdoor Air ◽  
Air Filter ◽  
High Rise ◽  
High Rise Building ◽  
Air Infiltration ◽  
The Impact

This study investigated the impact of outdoor air pollutants on indoor air quality in a high-rise building, considering factors related to the seasons and air infiltration. Further, the impact of atmospheric weather conditions on air infiltration has been analysed in a downtown area of Suzhou, China. The influence of the outdoor air pollution rate on indoor air quality in the office building was investigated based on on-site measurements and computer simulations. Results showed that the impact of outdoor air pollutants on indoor air quality was highest in winter, followed by spring, autumn and summer. Furthermore, multiple factors, which affect the indoor air quality in a high-rise building, have been further investigated in this study, including stack effect, wind effect, infiltration rate, outdoor air pollution rate, seasonal change and air filter efficiency. The significant influence of these factors on the indoor air quality level with floor height variations has been verified. Based on the analysis, a high-efficiency filter is recommended to maintain healthy indoor air quality. Meanwhile, a double-filter system is required if a building is exposed to heavily polluted outdoor air considering the most substantial impact of outdoor air pollutants on indoor air quality in winter. Moreover, a numerical model of steady-state indoor PM2.5 concentration was established to determine the suitable air filter efficiency and airtightness.

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