Impact of Outdoor Particles on Indoor Air

Chen, Chen; Zhao, Bin

doi:10.1007/978-981-10-5155-5_9-1

Cited by 4 publications

(2 citation statements)

References 114 publications

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“…This result was expected since most of its repositories have natural cross ventilation and outdoor air is considered by many authors to be the largest source of fungal propagules in indoor environments. 74,114,130,151,152…”

Section: Diversity Of Genera and Species Detected On The Documents Su...mentioning

confidence: 99%

Fungal diversity in environments of repository of the national archive of the Republic of Cuba from the 80s to 2022

Borrego

2023

JMEN

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This work aims to perform a compilation of the fungal diversity in the environment of the National Archive of the Republic of Cuba (NARC) repositories from the 80s of the last century and until 2022, which includes the fungal genera and species isolated from: air, settled dust and document surface, as ecological niches that contribute to the environmental mycological quality of these spaces in the institution. A total of 55 references were analyzed (31 of air, 4 of settled dust and 20 of different types of documents surface). A total of 168 fungal genera and 54 species were isolated from air, 36 genera and 12 species from dust as well as 98 genera and 26 species were detected on the document surfaces with a marked predominance of the genera Aspergillus, Cladosporium and Penicillium in the three niches, although 24 rare genera were detected in air after the year 2000 (e.g. Acremonium, Aureobasidium, Beltraniella, Bipolaris, Blastomyces, Botryoderma, Botryotrichum, Chaetomium, Chrysonilia, Exophiala, Gilmaniella, Harposporium, Hyalodendriella, Itersonilia, Nodulisporium, Ovulariopsis, Papularia, Scolecobasidium, Sepedonium, Sprorobolomyces, Torula, Trichophyton, Wardomyces, Zygosporium). Only six genera were similarly isolated from air, dust and the document surfaces (9.7%), while 19 species were found in these three niches (9.5%) (e.g. A. flavus, A. niger, A. versicolor, Cl. caryigenum, Cl. cladosporioides, Cl. herbarum, P. chrysogenum, P. citrinum, P. commune, P. janczewskii). Although fungal isolations from dust and the document surfaces are still scarce, it is evident that the greatest diversity of species was isolated from the air and that the similarities of species between these three niches are low, therefore air is the matrix that contributes with the most fungal species to the NARC environment. This compilation of the fungal diversity in the environment of the NARC repositories will serve as a reference for future studies in Cuban archives and other countries.

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Section: Diversity Of Genera and Species Detected On The Documents Su...mentioning

confidence: 99%

Fungal diversity in environments of repository of the national archive of the Republic of Cuba from the 80s to 2022

Borrego

2023

JMEN

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“…Indoor particulate pollution can arise from multiple sources including the penetration of the ambient aerosol into indoor spaces (Chen and Zhao, 2021) and a variety of indoor particle sources such as cooking, cleaning, and indoor combustion sources (Isaxon et al, 2015). Ilacqua et al (2021) reviewed the literature on indoor/outdoor ratios for various particulate matter (PM) sizes.…”

Section: Introductionmentioning

confidence: 99%

Residential Indoor and Outdoor PM Measured Using Low-cost Monitors during the Heating Season in Monroe County, NY

Ferro

Zíková

Masiol

et al. 2022

Aerosol Air Qual. Res.

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Continuous 1-minute indoor and outdoor PM concentrations (~PM2.5) were measured from November through April of 2015/16 and 2016/17 at 50 single family residences in Monroe County, NY (25 per season) using Speck (Airviz Inc., Pittsburgh, PA) low-cost monitors (LCMs). While the accuracy of LCMs is inconsistent and source dependent, the LCMs provided reasonable precision for estimating indoor/outdoor (I/O) ratios based on laboratory and field testing, understanding the relationship between indoor sources and concentration, and comparing PM concentrations across residences for the detected size range (0.5-3 µm). The indoor PM2.5 concentration pattern showed clear morning and evening peaks as well as higher indoor concentrations during the weekends when people are typically at home. The mean I/O PM2.5 ratio was 1.1 for all homes and increased to 1.7 when a combustion source was in use as indicated by an elevated CO concentration whereas most prior studies have found this ratio to be <1.Increases in wood-burning appliance temperature and indoor CO concentrations were found to be associated with an overall moderate (mean value of 2.1 µg/m 3 ) increase in indoor PM concentration averaged over the heating season. Short-term PM increases greater than 100 µg/m 3 were periodically observed in homes with and without wood-burning appliances operating. This study provides an approach for exposure assessment in homes that can be utilized by employing appropriate calibration and quality assurance procedures for the LCMs.

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