Temat: indoor air - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Perceived indoor air quality, air-related symptoms and ventilation in Finnish hospitals
Autorzy:: Hellgren, Ulla-Maija
Hyvärinen, Markku
Holopainen, Rauno
Reijula, Kari
Powiązania:: https://bibliotekanauki.pl/articles/2185474.pdf
Data publikacji:: 2011-03-01
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: evaluation of ventilation
Indoor Air Questionnaire
perceived indoor air quality
Health care workers
Opis:: Objectives: Good ventilation is more important in hospitals than in many other buildings. The objective of this study was to evaluate the effect of the condition, performance and modernity of ventilation systems on the perceived indoor air quality (IAQ) and the indoor air-related symptoms of hospital personnel. Materials and Methods: An inspection and evaluation graded on a 1 to 3 scale of the condition, performance, and modernity of the ventilation systems was carried out in ten central hospitals in Finland. The perceived IAQ and the related symptoms were collected by means of an indoor air questionnaire survey among the workers in these hospitals. Results: The condition, performance and modernity of the ventilation systems were good in 40% of the hospitals included in the research and poor in another 40% of them. In hospitals where the majority of the ventilation systems were assessed to be good, the prevalence of the indoor air-related complaints and symptoms was lower than in hospitals where the majority of the ventilation systems were assessed as needing extensive repairs. Conclusions: The condition and performance of the ventilation systems in hospitals had a significant impact on the perceived IAQ and the symptoms observed among the employees in Finnish hospitals. Therefore, it is important that hospital ventilation systems are maintained properly and regularly. Furthermore, they should be renovated, at the latest when their technical lifespan expires.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2011, 24, 1; 48-56
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Stężenia ozonu w pomieszczeniach przeznaczonych na czasowy pobyt ludzi
Ozone concentrations in Lublin non-occupational environments
Autorzy:: Staszowska, A.
Dudzińska, M. R.
Powiązania:: https://bibliotekanauki.pl/articles/127306.pdf
Data publikacji:: 2011
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: ozon
powietrze wewnętrzne
jakość powietrza wewnętrznego
ozone
indoor air
indoor air quality
non-occupational environments
Opis:: Badania przeprowadzono w pomieszczeniach przeznaczonych na czasowy pobyt ludzi: w pokojach biurowych i punktach kserograficznych zlokalizowanych na terenie miasta Lublina. Badania stężenia ozonu w powietrzu wewnętrznym przeprowadzone zostały w dwóch okresach: w okresie letnim i w sezonie grzewczym. Próbki do badań pobierano metodą pasywną. Pomiaru stężenia ozonu dokonano metodą spektrofotometryczną. Stężenia ozonu dla okresu letniego wyniosły: 0,01 -K),04 mg/m³ dla pomieszczeń biurowych oraz 0,008+0,176 mg/m³ dla punktów kserograficznych. Natomiast w sezonie grzewczym stężenia ozonu kształtowały się w następujących przedziałach: 0,007+0,018 mg/m³ dla pomieszczeń biurowych i 0,001-K),015 mg/m³ dla punktów kserograficznych. W punktach kserograficznych dopuszczalne stężenie 0,15 mg/m³ zostało przekroczone w sezonie letnim w dwóch przypadkach. W sezonie grzewczym nie odnotowano przekroczenia dopuszczalnego stężenia w punktach kserograficznych. W przypadku pomieszczeń biurowych dopuszczalne stężenie wynoszące 0,15 mg/m³ nie zostało przekroczone.
Ozone is the common component of indoor air. Because of its high reactivity it plays an important role in forming of indoor air quality, which influence directly on health of interior occupants. It is a well-known fact, that ozone can damage the respiratory system, inflames and irritates respiratory tissues, and can worsen asthmatic symptoms in individuals with asthma. Ozone exposure can produce symptoms such as coughing, chest tightness and impaired breathing. Elevated exposures have the potential to induce permanent lung damage, and even increase the risk of premature death in persons with poor health. Hence, there is a need to measure the concentrations of ozone in indoor air environments. The indoor ozone concentration depends on the outdoor ozone concentrations, the rate at which indoor air is exchanged with outdoor air, interior air circulation, indoor sources of ozone (eg ozone generators, electrostatic air cleaners, photocopiers, and laser printers), the rate at which ozone is removed by indoor surfaces, and reactions between ozone and other chemicals in the air. The objective of this study was to examine ozone concentrations in indoor air in selected non-occupational environments: office rooms and Xerox service points. Summer time and cold (heating) season was examined. Samples were collected using passive method. The ozone concentration on summer time was within the range of 0.04-K).01 mg/m³ for office rooms and 0.008-0.176 mg/m³ for Xerox points. In two examined Xerox places the permitted level of ozone (0.15 mg/m³) was exceeded in summer time. In cold time the permitted level of ozone was not exceeded in any Xerox points. hi offices rooms the permitted level of ozone was not achieved.
Źródło:: Proceedings of ECOpole; 2011, 5, 2; 623-627
1898-617X
2084-4557
Pojawia się w:: Proceedings of ECOpole
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Air Filtration and Sterilization in Ventilation Systems According to the New Paradigm
Autorzy:: Cepiński, Wojciech
Szałański, Paweł
Powiązania:: https://bibliotekanauki.pl/articles/2202141.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: pathogen
filtration
ventilation
indoor air pollution
indoor air quality
COVID-19
SARS-CoV-2
air handling unit
Opis:: The paper deals with the subject of increasing the efficiency of air purification in ventilation systems in situations of unusual hazardous indoor air pollutants. It analyzes possible locations of additional filtering and sterilizing elements in the installation to eliminate their return to the rooms. The quantities of pollutants in particular parts of the system were determined for a given fan configuration in the air handling unit and a possible leakage in the heat recovery system. Guidelines were proposed for the design and construction of systems to enable rapid modification of systems in the event of unusual contamination or pathogens in the indoor air.
Źródło:: Journal of Ecological Engineering; 2022, 23, 10; 25--34
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Mikroorganizmy w kurzu z pomieszczeń na przykładzie miasta Lublina
Characterization of the microbial community in settled dust samples from indoor environments in Lublin
Autorzy:: Staszowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/126364.pdf
Data publikacji:: 2011
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: mikroorganizmy
powietrze wewnętrzne
kurz domowy
jakość powietrza wewnętrznego
microorganisms
indoor air
house dust
indoor air quality
Opis:: W pracy jest przedstawiona charakterystyka mikrobiologiczna próbek kurzu zebranych w pomieszczeniach mieszkalnych i placówkach edukacyjnych zlokalizowanych na obszarze miasta Lublina. W kurzu najczęściej spotykanymi bakteriami były pałeczki Gram-dodatnie. Większość należała do rodzaju Bacillus. W próbkach kurzu z placówek edukacyjnych największą koncentrację bakterii stanowił gatunek Bacillus subtillis. Największą grupę po pałeczkach Gram-dodatnich spotykanych w kurzu były ziarniaki Gram-dodatnie. Głównie był to rodzaj Micrococcus, a dominującym gatunkiem był Micrococcus luteus. W kurzu znajdywały się także Gram-dodatnie ziarniaki z rodzaju Staphylococcus oraz Gram-ujemne pałeczki. W przypadku grzybów zawartych w kurzu dominującymi rodzajami były Aspergillus (głównie gatunek Aspergillus nigerii) oraz Penicillium. Grzyb z rodzaju Cladosporium był także spotykany w badanych próbkach.
Dust particles collected from indoor environments may contain hundreds of chemically and biologically active components, which can cause many adverse health effects and deterioration of building materials. While all types of microorganisms can cause problems indoors, bacteria and fungi are most commonly associated with indoor air quality complaints. Some of them produce mucus and excrete chemicals which can provoke allergy, respiratory system and skin irritation, headache, or fatigue. This study was designed to obtain information about characterization of the microbial community in settled dust samples from indoor environments of the Lublin area. Dust samples were collected from households and educational establishments. Microbial species and their concentrations were determined by culture analysis. The concentrations and proportions of morphologically distinguishable culturable bacteria and fungi in dust samples was as follows. In case of bacteria the most commonly found were Gram-positive rods, predominantly Bacillus spp. (Bacillus subtillis) and cocci - genus Micrococcus (Micrococcus leutus) and Staphylococcus. Fungi were represented by genus Aspergillus (mainly Aspergillus nigerii), Penicillium, and Cladosporium. Additionally, microbial concentrations of similar environments vary between sample types, eg total amount of fungi has been higher in dust from textile covered floor than in samples from bare floor.
Źródło:: Proceedings of ECOpole; 2011, 5, 1; 325-328
1898-617X
2084-4557
Pojawia się w:: Proceedings of ECOpole
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Indoor air studies of fungi contamination in two kindergartens in Kavala, Greece
Autorzy:: Łukaszuk, C.
Krajewska-Kułak, E.
Chatzopulu, A.
Theodosopoulou, E.
Powiązania:: https://bibliotekanauki.pl/articles/1917817.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Medyczny w Białymstoku
Tematy:: Indoor air fungi
kindergartens
SAS Super 100
Opis:: Introduction: Fungi and moulds are biological hazards that are ubiquitous both in the communal and occupational environments. The aim of the study was to assess the presence of airborne fungi in two kindergartens in Kavala, Greece. Materials and methods: Materials for the tests were: the air samples (in front of the buildings and the selected rooms) of the two kindergartens. The first Kavala kindergarten was located atop a hill and the second in the city center. The air pollution was determined using SAS SUPER 100. Results: The mean number of fungal colonies isolated from air of the kindergarten rooms in the city center was 478.3±148.4 CFU/m3. The mean number of fungal colonies isolated from air of the kindergarten on the hill was 343.6±188.8 CFU/m3. Aspergillus niger was most frequently isolated in air samples from the kindergarten rooms in the city center, while Penicillium species predominated the kindergarten rooms on the hill. CFU values in the air samples outside the kindergartens were higher in the center than on the hill of Kavala. CFU values of the examined air samples are varied. In the kindergarten rooms in the center of Kavala the most frequently isolated species was Aspergillus niger, and in the kindergarten on the hill it was Penicillium species. Conclusions: The present study demonstrated considerable numbers of fungi in the air in two kindergartens in Kavala, Greece.
Źródło:: Progress in Health Sciences; 2016, 6(1); 123-129
2083-1617
Pojawia się w:: Progress in Health Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Assessment of risk perception connected with exposure to indoor air pollution in the group of inhabitants of Silesian Voivodeship
Ocena percepcji zagrożeń związanych z narażeniem na zanieczyszczenie powietrza wnętrz w grupie mieszkańców województwa śląskiego
Autorzy:: Krupa, Karolina
Piekut, Agata
Złotkowska, Renata
Powiązania:: https://bibliotekanauki.pl/articles/1178779.pdf
Data publikacji:: 2012
Wydawca:: Instytut Medycyny Wsi
Tematy:: health risk
indoor air pollution
risk perception
Opis:: Introduction. Population increasingly draws attention to the issues concerning the environment degraded by the progress of civilization and the impact of this process on health. However, public awareness of the risk exposure to indoor contaminants is lagging a long way behind knowledge regarding outdoor environmental hazards. The aim of the study was to assess the risk perception related to exposure to indoor environmental factors in the population of Silesia. Materials and methods. In this study the electronic version of a questionnaire survey – downloaded on the website www.moja-ankiety.pl. was used. During the 3-months duration of the project 552 subjects participated in the survey. In the study participated the Silesian Voivodeship inhabitants such as chat rooms users, newsgroups and online forum participants. Data analysis was performed by using statistical program – STATA Version 8 SE [9], where the Kruskall-Wallis test and χ 2 test were applied. Statistical significance was assessed at p value *0.05. Results. Despite the low perception of environmental health hazards inside the dwellings, the majority of respondents were able to indentify health effects and ways to reduce exposure to indoor air pollution. Both gender, place of residence, education level and age significantly affected the level of perception of respondents on the risk connected with exposure to indoor air pollution. Conclusion. It is necessary to continuously work on raising public awareness of environmental health hazards in confined spaces, the causes of their occurrence, types, effects and above all the ways to counter these threats.
Wstęp. Populacja mieszkańców zwraca coraz większą uwagę na kwestie związane z degradacją środowiska w wyniku postępu cywilizacyjnego i skutku tego procesu na zdrowie. Jakkolwiek ich świadomość narażenia na zanieczyszczenia wnętrz jest znacznie mniej zaawansowana w stosunku do zagrożeń środowiskowych z zewnątrz. Celem tego badania była ocena ryzyka związanego z narażeniem na czynniki środowiskowe wnętrz u mieszkańców województwa śląskiego. Materiały i metody. W tym badaniu zastosowano ankietę w wersji elektronicznej umieszczonej na stronie internetowej www.moja-ankiety.pl. W czasie trzymiesięcznych badań udział wzięło 552 uczestników, mieszkańców województwa śląskiego takich jak: użytkownicy czatów, grup dyskusyjnych i forów internetowych. Analiza danych była przeprowadzona przy użyciu programu statystycznego STATA Version 8 SE [9], gdzie zastosowano testy Kruskall-Wallis i χ 2. Istotność statystyczna była oceniona na poziomie wartości p*0,05. Wyniki. Pomimo niskiej percepcji odnośnie zdrowotnych zagrożeń środowiskowych wewnątrz pomieszczeń, większość respondentów była w stanie ocenić skutki zdrowotne i sposoby ograniczenia narażenia na zanieczyszczenia powietrza wnętrz. Zarówno płeć, miejsce zamieszkania, poziom wykształcenia jak i wiek wywierały znaczny wpływ na poziom percepcji respondentów co do ryzyka związanego z narażeniem na zanieczyszczenie powietrza wewnątrz. Wnioski. Koniecznym jest stałe podnoszenie społecznej świadomości dotyczącej środowiskowych zagrożeń zdrowia w pomieszczeniach zamkniętych, przyczyn ich powstawania, rodzajów, skutków i przede wszystkim sposobów zwalczania tych zagrożeń.
Źródło:: Medycyna Środowiskowa - Environmental Medicine; 2012, 15, 3; 46-54
1505-7054
2084-6312
Pojawia się w:: Medycyna Środowiskowa - Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Indoor air particles in office buildings with suspected indoor air problems in the Helsinki area
Autorzy:: Lappalainen, Sanna
Salonen, Heidi
Salmi, Kari
Reijula, Kari
Powiązania:: https://bibliotekanauki.pl/articles/2179800.pdf
Data publikacji:: 2013-03-01
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: particle counts
indoor air
supply air
office
health effects
Opis:: Objectives: Airborne particle concentrations can be used as quality indicators of indoor environments. The previous lack of reference data has limited the use of particle measurements in offi ce environments. The aim of this study was to describe the concentrations of airborne particles (≥ 0.5 μm and ≥ 5.0 μm) in 122 Finnish offi ce buildings with suspected indoor air problems. Materials and Methods: The database consisted of indoor air and supply air particle samples collected in 2001–2006 from the Helsinki area. The particle concentrations (≥ 0.5 μm and ≥ 5.0 μm) were measured in the indoor air (528 samples from 122 offi ce rooms) and in the supply air (384 samples from 105 offi ce rooms) with an optical particle counter. Airborne particle concentrations ≥ 0.5 μm were categorized according to the effi ciency of supply air fi ltration and health survey data. Results: The mean concentrations in the indoor air equaled 1900 particles/l and in the supply air 1300 particles/l. The effi ciency of supply air fi ltration decreased the fi ne particles counts in both the indoor and supply air. The counts of large particles, ≥ 5.0 μm, were low in the indoor air. Airborne counts of ≥ 0.5 μm particles (geometric mean) were statistically higher in the offi ces whose occupants had work-related symptoms (eye and/or upper respiratory symptoms or upper respiratory infections) than in the offi ces whose occupants had no such symptoms. However, the symptoms may also be linked to other indoor air problems or particle characteristics not studied in this work. Conclusions: This study indicates typical airborne particle levels (≥ 0.5 μm and ≥ 5.0 μm) in Finnish offi ce buildings with suspected indoor air problems. The results can be used to evaluate the quality of indoor environment, possible indoor air problems, and the need for additional investigations.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2013, 26, 1; 155-164
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Photodegradation of Lower Polybrominated Diphenyl Ether Congeners in Indoor Air – Model Studies
Autorzy:: Staszowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/124336.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: PBDEs
indoor air quality
flame retardants
photolytic degradation
Opis:: Polybrominated diphenyl ethers (PBDEs) are additive flame retardants which have found applications in polymers for many consumer plastic and electronic goods. Wide use of these chemicals has led to their extremely high concentrations in the indor environments. This paper presents an exploratory study of the photodebromination of five individual lower polybrominated diphenyl ether congeners (BDE-28, BDE-47, BDE-99, BDE-100 and BDE-101) irradiated with white light and different UV (A, B, C) light ranges. The capability of photodegradation of lower PBDEs under room lights was proven by the debromination which occurred with various effectiveness for the selected PBDE congeners and depended of light source. Almost all PBDE congeners showed the greatest decay when exposed to UV-C, with the exception of BDE-100. The decay of irradiated congeners occurred rapidly during the first 5 min of experiment. The final degradation varied from 38% decay (BDE-28, UV-C) to 94% (BDE-47, UV-C). These findings can help in predicting PBDE behavior in indoors and also be useful in the design of PBDE remediation processes.
Źródło:: Journal of Ecological Engineering; 2017, 18, 3; 180-186
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Możliwość poprawy jakości powietrza w polskich szkołach w wyniku modernizacji opartej na zasadach zrównoważonego rozwoju
Autorzy:: Sowa, J.
Panek, A.
Powiązania:: https://bibliotekanauki.pl/articles/362510.pdf
Data publikacji:: 2005
Wydawca:: Instytut Fizyki Budowli Katarzyna i Piotr Klemm
Tematy:: jakość powietrza wewnętrznego
zasada zrównoważonego rozwoju
indoor air quality
Opis:: The paper describes part of the results of the Polish/Norwegian scientific cooperation within the project SUREBUILD, funded by the Norwegian Ministry of Foreign Affairs. The whole project is devoted to sustainable redevelopment of buildings in Poland, but special attention was paid to Polish schools constructed between 1958-1966 (the "Millenium" schools). Potential technologies for sustainable modernization of Polish schools were analyzed taking into consideration energetic, environmental, economic and other related criterions. Substantial part of the work was devoted to fin d the economically feasible technologies that might improve current unsatisfactory level of indoor air quality in Polish schools. The paper presents general recommendations for the moderniza- tion of ventilation system s in Polish schools as well as describes the technologies selected for school in Zgierz, the case study object of the project.
Źródło:: Fizyka Budowli w Teorii i Praktyce; 2005, T. 1; 305-314
1734-4891
Pojawia się w:: Fizyka Budowli w Teorii i Praktyce
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Indoor Air Quality in a Selected Health Resort Facility: Analysis of PM10, PM2.5 and 222Rn Concentrations
Autorzy:: Merenda, Beata
Maciejewski, Piotr
Bezyk, Yaroslav
Sówka, Izabela
Powiązania:: https://bibliotekanauki.pl/articles/2202169.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: health resort
indoor air
particulate matter
PM
222Rn
Opis:: This paper discusses the importance of indoor air quality and indicates its relation with outdoor air quality in the area of spa treatment. Significant factors and sources causing indoor air pollution by particulate matter and radon are considered. Particular attention is drawn to specific functions of health resorts in spa treatment in the context of the importance of indoor and outdoor air for patients staying in the resorts. It is underlined the specificity of health resorts providing treatment for patients classified as the group most sensitive to air pollution, i.e. people with chronic respiratory diseases. The study comprised measurements of 24-h concentrations of PM10, PM2.5 and 10-minute instantaneous concentrations of radon-222 (222Rn) from February 5 to February 25, 2021 in a treatment room of one of the Polish spas located in Lower Silesia. The analysis of interactions between the concentrations of two fractions of particulates PM10 and PM2.5 was presented. The interaction and dependence of factors affecting the elevated values of concentrations of the studied pollutants were discussed. The presented analyses showed that the concentrations of the studied pollutants were influenced by air exchange and air infiltration from outside to inside. In the case of short-term measurements of 222Rn activity concentration in the air, it was found that the observed changes in hourly concentrations of 222Rn are analogous to those observed in residential buildings. For the specific time intervals, the variation of PM concentrations and 222Rn activity concentration was found to be similar.
Źródło:: Journal of Ecological Engineering; 2022, 23, 10; 202--215
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Empirical cumulative distribution function of CO2 concentration increments as a descriptor of indoor air variability
Autorzy:: Szczurek, A.
Maciejewska, M.
Pietrucha, T.
Powiązania:: https://bibliotekanauki.pl/articles/208271.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: carbon dioxide
air quality
carbon
indoor air pollution
indoor air quality
indoor environment
dwutlenek węgla
jakość powietrza
węgiel
zanieczyszczenie powietrza w pomieszczeniach
jakość środowiska wewnętrznego
środowisko wewnętrzne
Opis:: Indoor air quality broadly refers to the environmental characteristics inside buildings and characterizes the physical, chemical and biological state of indoor air at some place and time. Usually it is characterized by physicochemical properties of indoor environment such as temperature, relative humidity, airflows and concentration of characteristic pollutants, e.g. carbon dioxide. They are highly variable in time. In the paper, changes of empirical cumulative distribution function (ECDF) of CO2 concentration were considered as a descriptor of indoor air variability. Using this measure, there may be performed the analysis of CO2 variation in a short as well as long term. The approach utilizes the idea of classification. A class of variation of CO2 concentration has its individual ECDF. It indicates a particular case of balance/imbalance between CO2 delivery and removal processes, including gas dispersion. The analysis is applicable for evaluating the stability of indoor environment and it may provide support for the diagnosis of the performance of the air exchange system. Exemplary results were provided for an open space office and a lecture theater.
Źródło:: Environment Protection Engineering; 2015, 41, 3; 173-187
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: The capability of fungi isolated from moldy dwellings to produce toxins
Autorzy:: Jeżak, Karolina
Kozajda, Anna
Sowiak, Małgorzata
Brzeźnicki, Sławomir
Bonczarowska, Marzena
Szadkowska-Stańczyk, Irena
Powiązania:: https://bibliotekanauki.pl/articles/2168358.pdf
Data publikacji:: 2016-07-27
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: indoor air
mycotoxins
molds
residential environment
sterigmatocystin
roquefortine C
Opis:: Objectives The main objective was analysis and assessment of toxinogenic capabilities of fungi isolated from moldy surfaces in residential rooms in an urban agglomeration situated far from flooded areas in moderate climate zone. Material and Methods The assessment of environmental exposure to mycotoxins was carried out in samples collected from moldy surfaces in form of scrapings and airborne dust from 22 moldy dwellings in winter season. In each sample 2 mycotoxins were analyzed: sterigmatocystin and roquefortine C produced by Aspergillus versicolor and Penicillium chrysogenum, respectively. Mycotoxins were analyzed by high-performance liquid chromatography (HPLC) in: scrapings from moldy surfaces, mixture of all species of fungi cultured from scrapings on microbiological medium (malt extract agar), pure cultures of Aspergillus versicolor and Penicillium chrysogenum cultured from scrapings on microbiological medium; mycotoxins in the indoor air dust were also analyzed. Results The production of sterigmatocystin by individual strains of Aspergillus versicolor cultured on medium was confirmed for 8 of 13 isolated strains ranging 2.1–235.9 μg/g and production of roquefortine C by Penicillium chrysogenum for 4 of 10 strains ranging 12.9–27.6 μg/g. In 11 of 13 samples of the mixture of fungi cultured from scrapings, in which Aspergillus versicolor was found, sterigmatocystin production was at the level of 3.1–1683.2 μg/g, whereas in 3 of 10 samples in which Penicillium chrysogenum occurred, the production of roquefortine C was 0.9–618.9 μg/g. The analysis did not show in any of the tested air dust and scrapings samples the presence of analyzed mycotoxins in the amount exceeding the determination limit. Conclusions The capability of synthesis of sterigmatocystin by Aspergillus versicolor and roquefortine C by Penicillium chrysogenum growing in mixtures of fungi from scrapings and pure cultures in laboratory conditions was confirmed. The absence of mycotoxins in scrapings and air dust samples indicates an insignificant inhalatory exposure to mycotoxins among inhabitants in moldy flats of urban agglomeration situated far from flooded territories. Int J Occup Med Environ Health 2016;29(5):823–836
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2016, 29, 5; 823-836
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Perceived indoor air quality and psychosocial work environment in office, school and health care environments in Finland
Autorzy:: Tähtinen, Katja
Remes, Jouko
Karvala, Kirsi
Salmi, Kari
Lahtinen, Marjaana
Reijula, Kari
Powiązania:: https://bibliotekanauki.pl/articles/2116581.pdf
Data publikacji:: 2020-06-16
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: Indoor Air Questionnaire
school
health care
perceived indoor environment
reference material
office
Opis:: ObjectivesThe study examined the extent and prevalence of perceived indoor environment-related (IE-related) symptoms environmental complaints and psychosocial work environmental factors in Finnish office, school and health care environments.Material and MethodsThe data were collected from non-industrial workplaces (N = 455) in 2011–2012 and 2015–2017 using the Finnish Institute of Occupational Health’s Indoor Air Questionnaire (IA Questionnaire). Suspicion of IE-related problems was reported in 59% of workplaces. The data consisted of 28 826 employees’ responses.ResultsThe employees reported symptoms and environmental discomfort in office environments less often than in school or health care environments. The most often reported IE-related complaints were stuffy air (39% of respondents), dry air (34%) and insufficient ventilation (33%). The most often reported symptoms were irritation of the nose (27% of respondents), irritation of the eyes (26%), and hoarse or dry throat (24%). The results showed differences between the perceived IE in office, school and health care environments.ConclusionsCompared to earlier findings, the most often perceived IE-related symptoms and complaints have increased in Finnish health care environments. The office employees’ perceptions of psychosocial work environment remained fairly unchanged whereas health care personnel more often assessed their psychosocial environment as positive compared to previous reports. Instead of exact reference values, comparing the results of IA Questionnaires with the distributions and mean values of the results of this study may be more informative for those striving to solve IE-related problems. The presented distribution and mean values of perceived symptoms, environmental complaints and psychosocial work environment might help to relate the results to other workplaces. This, in turn, might increase the understanding that IA Questionnaire results are influenced by many factors. The results presented can be used as new reference material when interpreting the results of IA Questionnaires in office, school and health care environments.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2020, 33, 4; 479-495
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Assessment of integrated indoor environmental air quality parameters in selected church buildings of Faisalabad city: a statistical based comparative study
Autorzy:: Hussain, Zahid
Khan, Mohammad S.
Kundi, Kundi
Alaf, Kashif
Ullah, Yasir
Powiązania:: https://bibliotekanauki.pl/articles/35518580.pdf
Data publikacji:: 2021
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: indoor air quality
church buildings
particulate matter
public health
air pollution
Opis:: The objective of this study is to control the air quality parameters for a selected range of different particulate matters. A comprehensive experimental approach is established to regulate the quality of air about a selected range of different air pollutants being investigated in the indoor atmosphere of the church building. Relative humidity, temperature, carbon dioxide, particulate matter and radon were considered as the factors of air quality extents. For establishing the association among the selected parameters, the data were mathematically analyzed. The correlation coefficient confirmed a strong relationship between the indoor CO2 level and the number of public. A negative relationship between the indoor CO2 extent and indoor temperature confirmed that due to the increase in temperature the concentration of CO2 decreased as well. A solid adverse connection among indoor relative humidity and indoor air temperature showed that due to the increase in air temperature, the level of the relative humidity decreased. Some recommendations were proposed for the treatment of air quality in church buildings for human well-being.
Źródło:: Scientific Review Engineering and Environmental Sciences; 2021, 30, 1; 134-147
1732-9353
Pojawia się w:: Scientific Review Engineering and Environmental Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Diversity of yeast-like fungi and their selected properties in bioaerosol premises utility
Wybrane właściwości grzybów drożdżopodobnych na tle ich różnorodności w bioaerozolu pomieszczeń użyteczności publicznej
Autorzy:: Ejdys, E.
Dynowska, M.
Biedunkiewicz, A.
Sucharzewska, E.
Powiązania:: https://bibliotekanauki.pl/articles/67185.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: diversity
yeast-like fungi
bioaerosol
school building
room
indoor air
Opis:: A total of 69 isolates of yeasts were recorded in the indoor air of the school buildings: 43 in heated rooms and 26 in unheated rooms. Perfect stages prevailed. Fungi isolated in our study belonged to 39 species. These were mostly monospecific isolates although five two-species isolates were noted. Differences in the properties of physiological characters of fungi isolated in both study seasons were observed. As indoor and outdoor air does not mix during the heating season, a specific substrate for prototrophic, non-fermenting yeastlike fungi forms. Acid production allows fungi to dissolve inorganic compounds in building structures and to release needed microcomponents. Abilities to produce carotenoid pigments are clearly promoted in yeast-like fungi living indoor. This may be related to the accumulation of compounds that are indirect stages in the cycle of biosynthesis of carotenoids or a surplus of oxidizing compounds.
Znaczną część biocenozy budynków stanowią trudno wykrywalne grzyby z różnych grup taksonomicznych. U podstawy niepowodzeń w hodowli i izolacji drożdżaków z bioaerozolu wewnętrznego leży zbyt mała wiedza dotycząca ekofizjologii izolatów bytujących w pomieszczeniach. Dlatego celem badań było poznanie niektórych właściwości drożdżaków, ułatwiających im przeżywanie w środowisku pomieszczeń. Materiałem do badań były grzyby drożdżopodobne uzyskane z bioaerozolu 26 pomieszczeń szkolnych o różnym sposobie użytkowania poddanych częściowej modernizacji. Próby pobierano w okresie grzewczym (listopad) i po wyłączeniu ogrzewania (maj). Określano morfologię uzyskanych izolatów grzybów, stadium rozwojowe, zdolności strzępkowania i wytwarzania chlamydospor oraz wybrane cechy biochemiczne: zdolności fermentacyjne, źródła węgla i azotu, przyswajanie witamin, wytwarzanie kwasów oraz zdolności syntezowania barwników. Ogólna liczba grzybów w bioaerozolu badanych pomieszczeń wynosiła wiosną od 314 do 3577 jtk/m 3, natomiast jesienią od 79 do 1533 jtk/m 3 . Z powietrza wewnętrznego w badanych budynkach uzyskano łącznie 69 izolatów drożdży: 43 z pomieszczeń ogrzewanych i 26 z nieogrzewanych. Dominowały stadia doskonałe. Wyizolowane grzyby należały do 39 gatunków. Na ogół izolaty były jednogatunkowe, natomiast w pięciu przypadkach stwierdzono izolaty dwugatunkowe. Zaobserwowano różnice w cechach fizjologicznych grzybów izolowanych w obu sezonach badawczych. Nie mieszanie się powietrza zewnętrznego i wewnętrznego pomieszczeń w okresie grzewczym stwarza specyficzne siedlisko dla prototroficznych, nie fermentujących grzybów droż-dżopodobnych. Produkcja kwasu umożliwia grzybom rozpuszczanie związków nieorganicznych w konstrukcjach budowlanych i uwalnianie potrzebnych mikroskładników. Zdolności wytwarzania barwników karotenoidowych, są wyraźnie promowane u drożdżaków bytujących w pomieszczeniach, co być może wiąże się z nagromadzeniem związków będących pośrednimi etapami w cyklu biosyntezy karotenoidów oraz nadmiarem związków utleniających.
Źródło:: Acta Mycologica; 2014, 49, 1
0001-625X
2353-074X
Pojawia się w:: Acta Mycologica
Dostawca treści:: Biblioteka Nauki

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