Dorra Gharbi, Hassan M. Mobayed, Ramzy Mohammed Ali, Amjad Tuffaha, Blessing Reena Dason, Tayseer Ibrahim, Mehdi Adeli, Hisham A. Sattar, Maria del Mar Trigo, Maryam Ali Al-Nesf
{"title":"Al Khor(卡塔尔北部)大气中空气传播枝孢菌和互孢菌孢子的首次体积记录:初步调查","authors":"Dorra Gharbi, Hassan M. Mobayed, Ramzy Mohammed Ali, Amjad Tuffaha, Blessing Reena Dason, Tayseer Ibrahim, Mehdi Adeli, Hisham A. Sattar, Maria del Mar Trigo, Maryam Ali Al-Nesf","doi":"10.1007/s10453-022-09746-7","DOIUrl":null,"url":null,"abstract":"<div><p>Daily monitoring of airborne fungal spores was carried out for the first time in Al Khor city, Qatar, using a Hirst type 7-day recording volumetric spore trap, from May 2017 to May 2019. During the sampling period, the annual and monthly fluctuations, as well as intradiurnal variations of airborne fungal spore concentrations, were evaluated. <i>Cladosporium,</i> followed by <i>Alternaria,</i> were the spore types most abundant in the atmosphere of the city, with a strong interannual variability in the atmospheric concentrations being observed. The Annual Spore Integrals (ASIns) were 3334 and 1172 spore * day/m<sup>3</sup> (2017–2018), and 6796 and 1538 spore * day/m<sup>3</sup> (2018–2019) for <i>Cladosporium</i> and <i>Alternaria</i>, respectively. Total daily spore concentrations showed significantly positive correlations with mean, minimum, and maximum temperatures but significantly negative correlations with relative humidity. However, due to the scarce rainfalls’ days, we did not find a statistically significant correlations between <i>Cladosporium</i> and <i>Alternaria</i> spore concentrations and this parameter. Despite this, the spore peaks were strongly related to precipitations that occurred during the previous month. In general, no significant correlations were found with wind speed but, regarding wind direction, the higher percentage of spores were collected when wind blows from the 4th quadrant (NW). According to the intradiurnal pattern, <i>Cladosporium</i> fungal spores displayed their maximum daily concentration during 8:00–10:00 h in the morning, with a second peak in the afternoon, while for <i>Alternaria</i>, the maximum peaks were observed between 08:00 and 14:00 h. Because no consistent previous aerobiological studies exist from Qatar, the aim of this study is to define the seasonality and intradiurnal behaviour of these two airborne fungal spore and the role that, in such arid scene, the meteorological parameters play on the spore concentrations.</p></div>","PeriodicalId":7718,"journal":{"name":"Aerobiologia","volume":"38 3","pages":"329 - 342"},"PeriodicalIF":2.2000,"publicationDate":"2022-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10453-022-09746-7.pdf","citationCount":"0","resultStr":"{\"title\":\"First volumetric records of airborne Cladosporium and Alternaria spores in the atmosphere of Al Khor (northern Qatar): a preliminary survey\",\"authors\":\"Dorra Gharbi, Hassan M. Mobayed, Ramzy Mohammed Ali, Amjad Tuffaha, Blessing Reena Dason, Tayseer Ibrahim, Mehdi Adeli, Hisham A. Sattar, Maria del Mar Trigo, Maryam Ali Al-Nesf\",\"doi\":\"10.1007/s10453-022-09746-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Daily monitoring of airborne fungal spores was carried out for the first time in Al Khor city, Qatar, using a Hirst type 7-day recording volumetric spore trap, from May 2017 to May 2019. During the sampling period, the annual and monthly fluctuations, as well as intradiurnal variations of airborne fungal spore concentrations, were evaluated. <i>Cladosporium,</i> followed by <i>Alternaria,</i> were the spore types most abundant in the atmosphere of the city, with a strong interannual variability in the atmospheric concentrations being observed. The Annual Spore Integrals (ASIns) were 3334 and 1172 spore * day/m<sup>3</sup> (2017–2018), and 6796 and 1538 spore * day/m<sup>3</sup> (2018–2019) for <i>Cladosporium</i> and <i>Alternaria</i>, respectively. Total daily spore concentrations showed significantly positive correlations with mean, minimum, and maximum temperatures but significantly negative correlations with relative humidity. However, due to the scarce rainfalls’ days, we did not find a statistically significant correlations between <i>Cladosporium</i> and <i>Alternaria</i> spore concentrations and this parameter. Despite this, the spore peaks were strongly related to precipitations that occurred during the previous month. In general, no significant correlations were found with wind speed but, regarding wind direction, the higher percentage of spores were collected when wind blows from the 4th quadrant (NW). According to the intradiurnal pattern, <i>Cladosporium</i> fungal spores displayed their maximum daily concentration during 8:00–10:00 h in the morning, with a second peak in the afternoon, while for <i>Alternaria</i>, the maximum peaks were observed between 08:00 and 14:00 h. 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First volumetric records of airborne Cladosporium and Alternaria spores in the atmosphere of Al Khor (northern Qatar): a preliminary survey
Daily monitoring of airborne fungal spores was carried out for the first time in Al Khor city, Qatar, using a Hirst type 7-day recording volumetric spore trap, from May 2017 to May 2019. During the sampling period, the annual and monthly fluctuations, as well as intradiurnal variations of airborne fungal spore concentrations, were evaluated. Cladosporium, followed by Alternaria, were the spore types most abundant in the atmosphere of the city, with a strong interannual variability in the atmospheric concentrations being observed. The Annual Spore Integrals (ASIns) were 3334 and 1172 spore * day/m3 (2017–2018), and 6796 and 1538 spore * day/m3 (2018–2019) for Cladosporium and Alternaria, respectively. Total daily spore concentrations showed significantly positive correlations with mean, minimum, and maximum temperatures but significantly negative correlations with relative humidity. However, due to the scarce rainfalls’ days, we did not find a statistically significant correlations between Cladosporium and Alternaria spore concentrations and this parameter. Despite this, the spore peaks were strongly related to precipitations that occurred during the previous month. In general, no significant correlations were found with wind speed but, regarding wind direction, the higher percentage of spores were collected when wind blows from the 4th quadrant (NW). According to the intradiurnal pattern, Cladosporium fungal spores displayed their maximum daily concentration during 8:00–10:00 h in the morning, with a second peak in the afternoon, while for Alternaria, the maximum peaks were observed between 08:00 and 14:00 h. Because no consistent previous aerobiological studies exist from Qatar, the aim of this study is to define the seasonality and intradiurnal behaviour of these two airborne fungal spore and the role that, in such arid scene, the meteorological parameters play on the spore concentrations.
期刊介绍：
Associated with the International Association for Aerobiology, Aerobiologia is an international medium for original research and review articles in the interdisciplinary fields of aerobiology and interaction of human, plant and animal systems on the biosphere. Coverage includes bioaerosols, transport mechanisms, biometeorology, climatology, air-sea interaction, land-surface/atmosphere interaction, biological pollution, biological input to global change, microbiology, aeromycology, aeropalynology, arthropod dispersal and environmental policy. Emphasis is placed on respiratory allergology, plant pathology, pest management, biological weathering and biodeterioration, indoor air quality, air-conditioning technology, industrial aerobiology and more.
Aerobiologia serves aerobiologists, and other professionals in medicine, public health, industrial and environmental hygiene, biological sciences, agriculture, atmospheric physics, botany, environmental science and cultural heritage.
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