Indoor and Outdoor Allergens and Pollutants

Stewart, Geoffrey A.; Robinson, Clive

doi:10.1016/b978-0-323-80912-2.00004-4

Cited by 2 publications

(2 citation statements)

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“…By referring to the fungal atlas and high-throughput sequencing results, we speculated on the fungus genus and the description of morphology. Alternaria was presumably observed in Figure d,e, characterized by rodlike or obclavate dictyoconidia multicellular and darkly pigmented spores with transverse and longitudinal septa and an apparent short conical or cylindrical beak at the tips . There was a refractive attachment scar at the tip of the beak.…”

Section: Resultsmentioning

confidence: 98%

“…Alternaria was presumably observed in Figure 3d,e, characterized by rodlike or obclavate dictyoconidia multicellular and darkly pigmented spores with transverse and longitudinal septa and an apparent short conical or cylindrical beak at the tips. 38 There was a refractive attachment scar at the tip of the beak. Cells in Figure 3c,f displayed similar ovoid shapes with a slightly curved phragmoconidia feature that the third part occupied the whole area, sympodial, pale brown, cylindrical, speculated as Curvularia.…”

Section: Fungal Concentration Community Structures and Morphology Fea...mentioning

confidence: 99%

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ITS and 16S rRNA Gene Revealed Multitudinous Microbial Contaminations of Residential Air Conditioning Filters in Megacity Shanghai, China

Geng,

Nie,

Wang

et al. 2023

Environ. Health

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Air conditioning is a crucial participant in indoor air circulation and harmful microorganism transmission. To elucidate microbial contamination in air conditioning systems, bacteria, fungi, and pollens in residential air conditioning (AC) filters in Shanghai were revealed. The concentrations of fungal ITS (1,972,037 ± 5,025,505 copies/cm 2 ) in most filter samples were considerably higher than the 16S rRNA gene (21,587 ± 21,461 copies/cm 2 ). The multitudinous bacteria determined a higher richness, whereas the trend was not in line with fungi, owing to Aspergillus flourishing, with an average of 43.75%. Numerous bacteria that may often be prevalent in human skin, mucous membranes, and intestines, such as Enhydrobacter, Micrococcus, Staphylococcus, Streptococcus, and Haemophilus, were also discovered in AC filters. The pollens were affiliated with Streptophyta at phylum, and Humulus was the most abundant genus (mean value 67.84%), raising the possibility of allergic responses. This study provides a better understanding of the microbial characteristics of AC filters, enables more rational approaches for microbe contaminant control, and ultimately improves human health in megacities.

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Section: Resultsmentioning

confidence: 98%

Section: Fungal Concentration Community Structures and Morphology Fea...mentioning

confidence: 99%