Variations in tropical airspora in Singapore

Tan, T. K.; Teo, Tian Seng; Tan, H.; Lee, B.W.; Chong, Adrian

doi:10.1016/s0953-7562(09)80969-6

Cited by 22 publications

(10 citation statements)

References 17 publications

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“…The occurrence of Curvularia was comparable to surveys conducted in India (Kumar 1982, Singh et al 1987, Vittal & Krishnamoorthi 1989 and Malaysia (Ho et al 1995). In a preliminary outdoor airspora study in Singapore however, Nigrospora sphaerica instead of Cladosporium and Didymosphaeria was found to be the major component (Tan et al 1992). This may have been due to the different methods used to trap fungal spores in these surveys.…”

Section: Discussionmentioning

confidence: 96%

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Outdoor airborne fungal spores in Singapore

Lim¹,

Chew²,

Dali³

et al. 1998

Grana

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Section: Discussionmentioning

confidence: 96%

“…Only a few studies have been carried out, namely in Thailand (Tuchinda et al 1983, Phanichyakarn et al 1989 and Malaysia (Ho et al I995). A preliminary study in Singapore has demonstrated the presence of a multitude of fungal spores in the outdoor environment (Tan et al 1992).…”

mentioning

confidence: 99%

Outdoor airborne fungal spores in Singapore

Lim¹,

Chew²,

Dali³

et al. 1998

Grana

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“…Contrary to temperate zones where numerous studies have been done and where spore and pollen calendars exists, the concentration of spores and pollen in the atmosphere of the tropics have not been totally described (Tan et al 1992). It has been found that the dynamics of spores and pollen changes according to multiple factors, such as geographic position of the country in which the study was performed, atmospheric contamination, the climate, and numerous other intrinsic factors (Levetin and Horner 2002).…”

Section: Discussionmentioning

confidence: 99%

Analysis of environmental factors and their effects on fungal spores in the atmosphere of a tropical urban area (San Juan, Puerto Rico)

2009

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In Puerto Rico, respiratory diseases affect a significant percentage of the population, and it is possible that the environmental factors unique to the island, such as easterly winds, dense vegetation, and high humidity, may increase the concentration of airborne biological particulates that could distress susceptible individuals. As most studies characterized fungal spores and pollen in temperate zones, we wanted to describe their concentrations in a tropical zone. The Allergenco Ò (MK3) spore trap was used to monitor airborne spores and pollen concentrations for 12 months starting on May 2005. During the length of the study, silicone grease-coated microscope slides captured 12 impacts daily, which were then stained with calcofluor and observed under the microscope with bright field and ultraviolet light. Atmospheric conditions were recorded with the Precision Weather Station Ò . Precipitation, dew point, and relative humidity promote the presence of fungal spores in San Juan throughout the year, with basidiospores being the most frequent. Spore concentrations were higher during the early morning hours all the year around. Wind and gusts were dispersal factors, and humidity and the dew point favored the release of spores into the atmosphere. In contrast to spores, pollens were not found to be affected by any of the meteorological factors and no distinctive patterns were found. Describing how airborne spores and pollens, many of which have allergenic potential, behave in the tropics, such as in San Juan, Puerto Rico, could be used to design preventive measures for the benefit of the sensitized population. Information about the presence and abundance of aeroallergens will assist in the diagnosis of allergic rhinitis and asthma on the island.

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“…Afzal et al, (2004) observed that increased degree of temperature caused significant increase in species and colonies of fungi during the summer season. Tan et al, (1992) reported that spore load is related with relative humidity. Ahmad (1960) discussed that due to temperature and relative humidity, spore's productivity is affected.…”

Section: Resultsmentioning

confidence: 99%