Back to Search
Start Over
Assessment of children’s potential exposure to bioburden in indoor environments
- Source :
- Repositório Científico de Acesso Aberto de Portugal, Repositório Científico de Acesso Aberto de Portugal (RCAAP), instacron:RCAAP, Atmosphere, Vol 11, Iss 993, p 993 (2020), Atmosphere, Volume 11, Issue 9
- Publication Year :
- 2020
- Publisher :
- MDPI, 2020.
-
Abstract
- The exposure to particles and bioaerosols has been associated with the increase in health effects in children. The objective of this study was to assess the indoor exposure to bioburden in the indoor microenvironments more frequented by children. Air particulate matter (PM) and settled dust were sampled in 33 dwellings and four schools with a medium volume sampler and with a passive method using electrostatic dust collectors (EDC), respectively. Settled dust collected by EDC was analyzed by culture-based methods (including azole resistance profile) and using qPCR. Results showed that the PM2.5 and PM10 concentrations in classrooms (31.15 &mu<br />g/m3 and 57.83 &mu<br />g/m3, respectively) were higher than in homes (15.26 &mu<br />g/m3 and 18.95 &mu<br />g/m3, respectively) and highly exceeded the limit values established by the Portuguese legislation for indoor air quality. The fungal species most commonly found in bedrooms was Penicillium sp. (91.79%), whereas, in living rooms, it was Rhizopus sp. (37.95%). Aspergillus sections with toxigenic potential were found in bedrooms and living rooms and were able to grow on VOR. Although not correlated with PM, EDC provided information regarding the bioburden. Future studies, applying EDC coupled with PM assessment, should be implemented to allow for a long-term integrated sample of organic dust.
- Subjects :
- School
Atmospheric Science
Organic dust
Future studies
010504 meteorology & atmospheric sciences
dwellings
LIFE Index-Air project
Bioburden
Indoor bioaerosol
schools
lcsh:QC851-999
010501 environmental sciences
Environmental Science (miscellaneous)
complex mixtures
01 natural sciences
Rhizopus sp
Toxicology
microenvironments
Indoor air quality
UID/Multi/04349/2019
Air quality index
Dwelling
Children
0105 earth and related environmental sciences
Contamination exposure
electrostatic dust collector
Electrostatic dust collector
Particulates
Environmental health
Air quality
Microenvironments
Environmental science
Indoor air
lcsh:Meteorology. Climatology
bioburden
indoor air quality
LIFE15 ENV/PT/000674
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Repositório Científico de Acesso Aberto de Portugal, Repositório Científico de Acesso Aberto de Portugal (RCAAP), instacron:RCAAP, Atmosphere, Vol 11, Iss 993, p 993 (2020), Atmosphere, Volume 11, Issue 9
- Accession number :
- edsair.doi.dedup.....db8787a3f24198b062bb5e5fd44c005a