Why Does Rain Increase the Concentrations of Environmental Bioaerosols during Monsoon?

Kang, So‐mi; Heo, Ki Joon; Lee, Byung Uk

doi:10.4209/aaqr.2014.12.0328

Cited by 20 publications

(8 citation statements)

References 15 publications

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“…In addition, among the environmental factors, temperature, relative humidity, CO 2 concentrations, and particulate matter concentrations showed significant seasonal variations. Differences in temperature and relative humidity in the two seasons probably contributed to significant temporal variations in fungal spore concentrations (Kang et al, 2015;Saari et al, 2015). Our observations support the findings of previous studies: total fungal spore concentrations were higher during fall than during winter in a Norwegian grain and compound feed industry (Halstensen et al, 2013), and in Ohio, USA, the total fungal spore concentrations were higher during summer than during winter in swine and dairy farm environments (Lee et al, 2006).…”

Section: Discussionsupporting

confidence: 82%

Fungal Bioaerosol Exposure and its Effects on the Health of Mushroom and Vegetable Farm Workers in Taiwan

Tarigan

Chen

Lin

et al. 2017

Aerosol Air Qual. Res.

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Workers from specific occupational settings may be exposed to high fungal bioaerosol concentrations, causing detrimental health effects. Therefore, we conducted a study to evaluate the characteristics and health effects of fungal bioaerosols present on agricultural farms. By using IOM inhalable dust samplers, personal and area samples of airborne fungi were collected from five agricultural farms-two mushroom and three vegetable farms. A standardized questionnaire and spirometry were used to evaluate workers' health. The Kruskal-Wallis test was used to examine the distributions of fungal and environmental factors among the different farms, and regression analyses were performed to evaluate the effects of personal bioaerosol exposure on workers' health. In the personal samples, the geometric mean concentrations ranged from 4.3 × 10 3 to 3.0 × 10 4 CFU m -3 for total culturable fungi and from 4.2 × 10 3 to 1.2 × 10 5 spores m -3 for total fungal spores. The total fungal spore concentrations differed significantly among the personal samples (p = 0.026), but not among the area samples, from the five farms. The culturable fungal concentrations among the five farms did not differ significantly in the personal or area samples. Decreased lung functions of the workers were significantly associated with the concentrations of total fungi and several fungal taxa such as Ascospores, Fusarium, and Periconia. This study demonstrated that exposure to high fungal bioaerosol concentrations reduced the lung functions of the mushroom and vegetable farm workers. Superior ventilation and appropriate personal protection equipment are required to reduce occupational biohazards.

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Section: Discussionsupporting

confidence: 82%

Fungal Bioaerosol Exposure and its Effects on the Health of Mushroom and Vegetable Farm Workers in Taiwan

Tarigan

Chen

Lin

et al. 2017

Aerosol Air Qual. Res.

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“…Significant relationships have been found between meteorological parameters (especially, relative humidity) and bacterial and fungal growth (Niazi et al, 2015). The outdoor concentrations of fungal and bacterial bio-aerosols were found to increase during monsoons (Kang et al, 2015). The prime sites for growth of bacteria and fungi were determined to include dehumidifier drip pans, humidifier reservoirs, air conditioning equipment, toilets, shower heads, water damaged carpets, damp ceiling panels, and walls (McGill et al, 2015).…”

Section: Fungi and Bacteriamentioning

confidence: 99%

Airborne bioaerosols and their impact on human health

Kim

Kabir²,

Jahan

2018

Journal of Environmental Sciences

347

200

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Bioaerosols consist of aerosols originated biologically such as metabolites, toxins, or fragments of microorganisms that are present ubiquitously in the environment. International interests in bioaerosols have increased rapidly to broaden the pool of knowledge on their identification, quantification, distribution, and health impacts (e.g., infectious and respiratory diseases, allergies, and cancer). However, risk assessment of bioaerosols based on conventional culture methods has been hampered further by several factors such as: (1) the complexity of microorganisms or derivatives to be investigated; (2) the purpose, techniques, and locations of sampling; and (3) the lack of valid quantitative criteria (e.g., exposure standards and dose/effect relationships). Although exposure to some microbes is considered to be beneficial for health, more research is needed to properly assess their potential health hazards including inter-individual susceptibility, interactions with non-biological agents, and many proven/unproven health effects (e.g., atopy and atopic diseases).

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“…The concentrations at the bus terminal (urban site) were between those of the mountain and seashore sites. Differences in temperature and relative humidity among the sites was not significant enough to produce large differences in these concentrations [16].…”

Section: Resultsmentioning

confidence: 99%

Concentrations of Atmospheric Culturable Bioaerosols at Mountain and Seashore Sites

Lee

Heo

et al. 2019

IJERPH

Self Cite

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Concentrations of atmospheric culturable bioaerosols at mountain and seashore sites were measured in field investigations by using a bio-culture sampler. The eastern Korean peninsula was selected for the measurements because of the short distance between the mountain site and the seashore site. Detectable concentrations of culturable fungal and bacterial bioaerosols (maximum 1065 CFU/m3) were quantitatively measured at the mountain and seashore sites. In addition, measurement of bioaerosols was conducted at an urban area as reference data. Significantly higher concentrations of bioaerosols were found at the mountain site. However, several fold smaller levels of bioaerosols were detected at the seashore site (t-test p-value < 0.05).

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Why Does Rain Increase the Concentrations of Environmental Bioaerosols during Monsoon?

Cited by 20 publications

References 15 publications

Fungal Bioaerosol Exposure and its Effects on the Health of Mushroom and Vegetable Farm Workers in Taiwan

Fungal Bioaerosol Exposure and its Effects on the Health of Mushroom and Vegetable Farm Workers in Taiwan

Airborne bioaerosols and their impact on human health

Concentrations of Atmospheric Culturable Bioaerosols at Mountain and Seashore Sites

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