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... This study was undertaken to investigate how the length of the extraction period influences the (1 → 3)-β-d-glucan (β-glucan) yield and also to examine the background concentration of β-glucan as airborne β-glucan in outdoor environments in different seasons and as concentrations in airborne and floor dust in offices. To ensure compatibility between results obtained in different laboratories, it i ...
air; allergenicity; bioaerosols; data collection; fluorescence; fungal spores; hay fever; human health; instrumentation; microscopy; monitoring; particles; pollen; Ireland
Abstract:
... The airborne monitoring of bioaerosols has become a research area attracting significant scientific interest over the last few years because of potential impacts on human health. For example, so-called primary aerosol biological particles (PBAPs) such as pollen and fungal spores are known to induce allergic responses and therefore exacerbate reactions such as allergenic rhinitis (hay fever) and ch ...
... Alternaria and Cladosporium spores belong to the most frequent and allergenic particles in bioaerosol in the temperate climate. The investigation of Alternaria and Cladosporium spore concentrations was performed in two cities in Poland, Szczecin and Cracow, in 2004–2013. The meteorological parameters taken to assess their impact on fungal spores were average, maximum and minimum temperature, relat ...
... Airborne pollen calendars are useful to estimate the flowering season of the different plants as well as to indicate the allergenic potential present in the atmosphere at a given time. In this study, it is presented a 10-year survey of the atmospheric concentration of allergenic pollen types. Airborne pollen was performed, from 2003 to 2012, using a 7-day Hirst-type volumetric trap. The interannua ...
... Knowledge of airborne pollen concentrations and the weather conditions influencing them is important for air quality forecasters, allergists and allergy sufferers. For this reason, a 7-day recording volumetric spore trap of the Hirst design was used for pollen monitoring between January 2006 and December 2007 in Kastamonu, Turkey. A total of 293,427 pollen grains belonging to 51 taxa were recorded ...
... Viral aerosols can lead to respiratory viral infections with high infectivity. About 90% of people’s time is spent in closed environments. A few studies have pointed out that the ventilation systems in air handling units (AHUs) that treat and transmit a new synthetic clean and conditioned environment can also spread and transport viral particles in buildings. The aim of this work is to study the c ...
... Airborne fungal spores are well documented to trigger respiratory allergy. The present study provides baseline information on the quantitative and qualitative aspects of aerospores for the first time in a typical urban area of Kolkata metropolis, India. An aeromonitoring was performed by Burkard volumetric 7-day sampler for two consecutive years (August 2012–July 2014). Total concentration, season ...
... The present study has been carried out to assess the allergenicity of dominant pollen types from the atmosphere of nine districts of the state of Punjab, India. During the study period (2012–2014), 30 different kinds of pollens belonging to 17 families were recorded. Antigenic extract of thirteen pollen types were selected for skin prick tests (SPT). The allergenic pollens selected for the present ...
allergenicity; allergens; enzyme-linked immunosorbent assay; grasses; hay fever; monitoring; olives; pollen; rain; relative humidity; samplers; spore traps; temperature; Mediterranean region
Abstract:
... Olive and grass pollen grains are the major causes of hay fever in the Mediterranean region. A number of samplers and methods have been developed in recent years in order to obtain reliable data regarding airborne allergen concentrations. This paper reports on a detailed comparison of two samplers—Cyclone and ChemVol—and on the parameters that could influence their efficiency. Airborne concentrati ...
... A number of ornamental plant species produce pollen grains with allergenic properties, thus posing a potential risk to human health. A comparative study of the ecological and aerobiological characteristics of ornamental urban flora in four Andalusian cities revealed the presence of over 100 potentially allergenic ornamental plant species. Most of these were phanerophytes, and species of Asiatic or ...
... Knowledge of the main biological and climate factors influencing final harvest is becoming increasingly necessary in order to obtain reliable crop estimates and, thus, ensure optimised, effective private crop management. This knowledge is also of great value to public agricultural institutions for the planning of government subsidies. Castilla-La Mancha (Central Spain) is the second largest olive- ...
... This study reports on the flowering phenology of 12 Poaceae species in different types of plant cover (scrub, riverbank and pasture), with a view to creating a phenological calendar for the major species contributing most to airborne pollen concentrations. The study has been carried out from March to June between 2000 and 2013. Seventeen sampling sites in the study area were selected by accessibil ...
... Several countries refuse the import of wheat if it is contaminated with Tilletia spp. Local quarantine regulations are in effect regarding Tilletia indica and Tilletia controversa as part of a strategy to first hinder the disease from establishing in the country or eradicate the disease and, more recently, to prohibit the spread of it. Because of the economic importance of these fungal pathogens i ...
... The preservation of decorated caves is a great challenge that has been reinforced by the microbial crisis occurring at emblematic sites such as the Lascaux and Altamira caves. To date, little is known about the microbial behavior of caves. One difficulty is that the term “cave” covers a wide variety of sites and structures. Past studies concentrated on caves with microbial disorders and were gener ...
... Microbial organisms can cause huge crises in decorated caves, as seen in emblematic sites such as Lascaux cave. The preservation of such sites involves understanding the healthy microbial behavior of caves before the damage occurs. Indeed, knowledge of normal cave behavior is a prerequisite to identifying potential imbalance. This study seeks to determine whether models of aerobiological behavior ...
Michel Almaguer-Chávez; Teresa Rojas-Flores; Vladimir Dobal-Amador; Amado Batista-Mainegra; Narovis Rives-RodrÃguez; MarÃa Jesús-Aira; Ana N. Hernández-Lauzardo; Annia Hernández-RodrÃguez
... The aerobiology can play a key role in protecting the rice crop since many fungi can cause serious damage to agricultural areas. In this way, the ideal time to implement different security measures can be identified. To determine the presence of potentially pathogenic fungi in the air of the rice agroecosystem, a weekly monitoring of viable fungi was carried out using a volumetric sampler. Collect ...
... The objectives of this study were to evaluate the microbial prevalence inside six repositories of the National Archive of the Republic of Cuba in 2Â months of the year and to examine some of the physiological features of fungi isolated in order to evaluate their potential for biodeterioration. The microbiological sampling was conducted in February and September using a slit impactor as air sampler ...
... Aerobiological studies are widely used to determine the fungal spectrum in the air. These studies have revealed that Aspergillus/Penicillium spores are the most abundant spores in both outdoor and indoor environments. In this study, we have presented the variations in the concentration of these spores in an indoor environment (a potato store). Aerobiological sampling was conducted during five stor ...
... Aerobiological studies in urban areas are quite abundant in recent decades, but not in rural areas with a high environmental value. In this work, we analyze the airborne levels of pollen and fern spores in year 2012 collected by means of a volumetric sampler located in an ecological vineyard and in the Biosphere Reserve “Sierras de Béjar y Francia.” The results showed a high atmospheric representa ...
... Petri plates (PP) containing volumes of media attached to unmanned aircraft systems (UAS) have been used to trap atmospheric biota for years. If capture efficiency varies based on media volume used, aerial concentrations of biota may be poorly estimated after an UAS flight occurs. We conducted 36 separate sampling flights in which PP were filled either with media to maximum volume or half the maxi ...