31. Indoor and Outdoor Concentration Levels of Airborne Fungi in Cincinnati Area Homes: Pilot Study

2005 ◽  
Author(s):  
T. Lee ◽  
D. Martuzevicius ◽  
C. Crawford ◽  
A. Adhikari ◽  
T. Reponen ◽  
...  
Keyword(s):  
Pilot Study ◽  
Airborne Fungi ◽  
Outdoor Concentration ◽  
Concentration Levels ◽  
Indoor And Outdoor

scholarly journals Indoor and outdoor PM concenctration at a residential environment, in the Athens area

2013 ◽  
Vol 10 (2) ◽  
pp. 201-208
Keyword(s):  
Population Exposure ◽  
Air Exchange Rate ◽  
Diurnal Cycles ◽  
Indoor Sources ◽  
Limit Value ◽  
Pm10 And Pm2.5 ◽  
Outdoor Concentration ◽  
Highly Correlated ◽  
Concentration Levels ◽  
Indoor And Outdoor

The aim of the present work was to study exposure to PM in the indoor and outdoor microenvironment of a typical residence in the center of Athens. Simultaneous indoor and outdoor measurements of PM10 and PM2.5 were conducted, by the use of gravimetric and continuous samples, during October and November 2006. Moreover, air exchange rate was monitored continuously during the entire measurement period. The indoor and outdoor concentration levels were significant for both size fractions. Mean daily PM10 outdoor concentrations exceeded the E.U. 24-hr limit value for 84 % of the measured days, while the respective PM2.5 concentrations exceeded the 24-hr limit value set by the C.A.F.E. working group for 69 % of the measured days. PM10 and PM2.5 concentrations exhibited increased short-term variability with high peak concentrations during morning and afternoon/night rush hours. Indoor concentration levels seem to be mainly affected by PM of outdoor origin, since the calculated indoor-to-outdoor concentrations ratios (I/O) were much lower than 1.00 during all days and indoor and outdoor concentrations were highly correlated. This finding was also supported by the pattern of their diurnal cycles, which followed the outdoor ones, with a delay of approximately 1 hr. The results indicate increased PM concentration levels in the center of Athens, even in indoor microenvironments with no significant indoor sources and emphasize the need for a more extensive investigation of the Athens population exposure, for the protection of public health.

scholarly journals Indoor / outdoor PM levels and EC surrogate, at typical microenvironments in the Athens area

2013 ◽  
Vol 12 (1) ◽  
pp. 12-19 ◽  
Keyword(s):  
Absorption Coefficient ◽  
Ambient Air ◽  
Ambient Atmosphere ◽  
Large Contribution ◽  
Outdoor Concentration ◽  
Measured Absorption ◽  
Athens Area ◽  
Very High ◽  
Concentration Levels ◽  
Indoor And Outdoor

The aim of the present work was to characterize particulate matter (PM) and elemental carbon (EC) indoor and outdoor concentration levels in the Athens area and to examine the contribution of ambient air to the observed indoor levels. 24-hr simultaneous indoor and outdoor PM10 and PM2.5 measurements were conducted at a central (CR) and a suburban (SR) residence, and at an office in the commercial centre of Athens (CO), during cold and warm period of 2006. The absorption coefficient (α) was measured on the collected filters, as a surrogate for EC concentration levels. Ambient PM levels were very high at both central sites and significant at SR (mean 24-hr PM10: 87.4, 50.3 and 87.3 μg m-3 and PM2.5: 50.7, 20.2 and 42.8 μg m-3 at CR, SR and CO). The measured absorption coefficient values were very high at CR and CO for both size fractions. Indoor PM concentration and absorption coefficient values were lower than the respective outdoor ones, but still significant at the two central sites. Very good correlations were observed between indoor and outdoor data (especially for absorption coefficient values), indicating a large contribution of the ambient atmosphere to the indoor levels, more pronounced in finer particles.

scholarly journals Indoor and outdoor environmental pollution and COPD: a pilot study

2018 ◽  
Vol 28 (suppl_4) ◽  
Author(s):  
A Borghini ◽  
E Gallotti ◽  
S Ferrara ◽  
P Montuschi ◽  
G Gerosa ◽  
...  
Keyword(s):  
Pilot Study ◽  
Environmental Pollution ◽  
Indoor And Outdoor

Characterization of indoor and outdoor air associated with residences using woodstoves: A pilot study

1988 ◽  
Vol 14 (3) ◽  
pp. 213-219 ◽  
Author(s):  
V. Ross Highsmith ◽  
Roy B. Zweidinger ◽  
Raymond G. Merrill
Keyword(s):  
Pilot Study ◽  
Outdoor Air ◽  
Indoor And Outdoor

scholarly journals Assessment of indoor and outdoor airborne fungi in an Educational, Research and Treatment Center

2016 ◽  
Vol 10 ◽  
Author(s):  
Nasrin Rostami ◽  
Hossien Alidadi ◽  
Hossein Zarrinfar ◽  
Pegah Salehi
Keyword(s):  
Educational Research ◽  
Neonatal Intensive Care ◽  
Airborne Fungi ◽  
Cross Sectional Study ◽  
Treatment Center ◽  
Outdoor Air ◽  
Cross Sectional ◽  
Hospital Environments ◽  
Almost All ◽  
Indoor And Outdoor

Hospital environments contain different types of microorganisms. Airborne fungal are one of these microbes and the major sources of hospitals indoor contamination that will be able to cause airborne fungal diseases. The total count and diversity of the airborne filamentous and yeasts fungi were investigated in indoor and outdoor air of selective wards of Emam Reza Educational, Research and Treatment Center. This cross-sectional study was performed during the fall season. One hundred and ninety-two environmental samples of indoor and outdoor air from hematology, infectious diseases, Ear, Nose and Throat (ENT) and Neonatal Intensive Care Unit (NICU) wards were collected by open plate technique (on Sabouraud dextrose agar media) once a week. The cultures were then examined and evaluated according to macroscopic and microscopic examination criteria. In this study, 67 (62.03%) of indoor samples and 81 (96.42%) of outdoor samples were positive for fungi. The most isolated fungi were yeast species (17.12%), <em>Penicillium</em> spp. (16.34%), <em>Alternaria</em> spp. (14.39%), <em>A.</em> <em>niger</em> (11.28%), <em>A</em>. <em>flavus</em> (8.95%), respectively. Almost all of the wards showed high rates of contamination by various fungi. However, the analysis of the data showed that indoor air of hematology ward had the highest fungal pollution. In contrast, the outdoor air of ENT had the highest fungal pollution. Thus, these results demonstrated that the cleansing and disinfection procedures in the hospital wards should be improved yet.

Sign in / Sign up

Export Citation Format

Share Document