72 results match your criteria Aerobiologia[Journal]

Comparison of the characterization of allergenic protein 3 (Pla a3) released from pollen grains collected in Shanghai during the spring of 2019 and 2020.

Aerobiologia (Bologna) 2022 27;38(1):23-33. Epub 2021 Nov 27.

School of Science and Engineering, Saitama University, Saitama, 338-8570 Japan.

Due to the COVID-19 pandemic in early 2020, large-scale industrial production has been stagnant and reduced, the urban air quality has been greatly improved. It provided an excellent opportunity to explore the effects of air pollutants on the sensitization of pollen allergen proteins in the environment. pollen grains sampled in the spring of 2019 and 2020 were used for detailed characterization and analysis. Read More

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November 2021

Seasonal variation and size distribution in the airborne indoor microbial concentration of residential houses in Delhi and its impact on health.

Aerobiologia (Bologna) 2021 3;37(4):719-732. Epub 2021 Jul 3.

Department of Environmental Studies, Satyawati College, University of Delhi, Delhi, India.

Exposure of microbial agents in the air of indoor dwellings is associated with effects on respiratory and general health. The current study was conducted in the urban area of Delhi Metropolis for the seasonal quantitative assessment of viable microbial indoor air quality. Bioaerosol measurement was conducted by using Anderson six stage impactor with cut-off diameters of 7. Read More

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Fungi in the indoor air of critical hospital areas: a review.

Aerobiologia (Bologna) 2021 14;37(3):379-394. Epub 2021 May 14.

Universidade de Franca, Av. Dr. Armando Salles de Oliveira, 201, Parque Universitário, Franca, São Paulo 14404-600 Brazil.

Invasive fungal infection is an important cause of mortality and morbidity in neonates, especially in low-birthweight neonates. The contribution of fungi in the indoor air to the incidence of mucocutaneous colonization and to the risk of invasive fungal infection in this population is uncertain. This review aimed to identify and to summarize the best available evidence on the fungal contamination in the indoor air of critical hospital areas with an emphasis on pediatric/neonatal ICUs. Read More

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Community structure of environmental microorganisms associated with COVID-19 affected patients.

Aerobiologia (Bologna) 2021 May 4:1-9. Epub 2021 May 4.

College of Pulmonary and Critical Care Medicine, Chinese PLA General Hospital, Beijing, 100853 China.

To clarify the characteristics and distribution of hospital environmental microbiome associated with confirmed COVID-19 patients. Environmental samples with varying degrees of contamination which were associated with confirmed COVID-19 patients were collected, including 13 aerosol samples collected near eight patients in different wards, five swabs from one patient's skin and his personal belongings, and two swabs from the surface of positive pressure respiratory protective hood and the face shield from a physician who had close contact with one patient. Metagenomic next-generation sequencing (mNGS) was used to analyze the composition of the microbiome. Read More

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Bioaerosols in the landfill environment: an overview of microbial diversity and potential health hazards.

Abhilash T Nair

Aerobiologia (Bologna) 2021 Feb 4:1-19. Epub 2021 Feb 4.

Department of Applied Sciences and Humanities, National Institute of Foundry and Forge Technology (NIFFT), Hatia, Ranchi, Jharkhand 834003 India.

Landfilling is one of the indispensable parts of solid waste management in various countries. Solid waste disposed of in landfill sites provides nutrients for the proliferation of pathogenic microbes which are aerosolized into the atmosphere due to the local meteorology and various waste disposal activities. Bioaerosols released from landfill sites can create health issues for employees and adjoining public. Read More

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February 2021

Quantitative and qualitative assessment of microbial aerosols in different indoor environments of a dental school clinic.

Aerobiologia (Bologna) 2021 13;37(2):217-224. Epub 2021 Jan 13.

Student Research Committee, Arak University of Medical Sciences, Arak, Iran.

In the indoor environment of dental clinics, dental staff and patients are exposed to various types of infectious agents transported by aerosols and particles, generated during dental procedures, promoting an increased risk of cross-infection. The aim of this study was to determine the levels and diversity of microbial aerosol in relation to particle load in five different departments of a dental school clinic. The air samples were collected by an active single-stage Andersen sampler during the treatment procedure. Read More

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January 2021

Effect of selected sampling media, flow rate, and time on the sampling efficiency of a liquid impinger packed with glass beads for the collection of airborne viruses.

Aerobiologia (Bologna) 2021 13;37(2):243-252. Epub 2021 Jan 13.

Institute of Environmental and Occupational Health Sciences, National Yang-Ming University, No. 155, Sec. 2, Li-Nong Street, Taipei City, 11221 Taiwan (ROC).

The liquid impingers can be used for sampling of viral aerosols, such as COVID-19 virus, influenza, and measles. However, the lowest cutoff diameter of commercially available liquid impingers was about 0.3 μm, and the physical collection efficiency for nano-bioaerosol is only about 10-20%. Read More

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January 2021

Urban-scale variation in pollen concentrations: A single station is insufficient to characterize daily exposure.

Aerobiologia (Bologna) 2020 Sep 20;36(3):417-431. Epub 2020 Apr 20.

University of Michigan - Ann Arbor, Environmental Health Sciences, 1415 Washington Heights Rd., Ann Arbor, Michigan, USA.

Epidemiological analyses of airborne allergenic pollen often use concentration measurements from a single station to represent exposure across a city, but this approach does not account for the spatial variation of concentrations within the city. Because there are few descriptions of urban-scale variation, the resulting exposure measurement error is unknown but potentially important for epidemiological studies. This study examines urban scale variation in pollen concentrations by measuring pollen concentrations of 13 taxa over 24-hr periods twice weekly at 25 sites in two seasons in Detroit, Michigan. Read More

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September 2020

Efficacy of 75% alcohol in pretreatment of the Andersen sampler in trapping maximum airborne microbes.

Aerobiologia (Bologna) 2021 5;37(1):171-178. Epub 2021 Jan 5.

Department of Environment and Health, Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, China.

The present study was conducted to evaluate the effects of the pretreatment methods and sampling time on the sampling of airborne bacteria in hospitals. Methods for the pretreatment of Andersen samplers, namely, non-sterilized, 75% ethanol and autoclaving sampled for 5 min, 10 min and 15 min in the general ward and class 1000 clean operating department, respectively, were studied. Statistical analysis was used to compare the differences in sampling results of airborne bacteria under different pretreatment methods, sampling time and environmental conditions. Read More

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January 2021

Pollen production for 13 urban North American tree species: Allometric equations for tree trunk diameter and crown area.

Aerobiologia (Bologna) 2020 Sep 7;36(3):401-415. Epub 2020 Apr 7.

School of Public Health, University of Michigan - Ann Arbor, MI, USA.

Estimates of airborne pollen concentrations at the urban scale would be useful for epidemiologists, land managers, and allergy sufferers. Mechanistic models could be well suited for this task, but their development will require data on pollen production across cities, including estimates of pollen production by individual trees. In this study, we developed predictive models for pollen production as a function of trunk size, canopy area, and height, which are commonly recorded in tree surveys or readily extracted from remote sensing data. Read More

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September 2020

COVID-19 lockdown: a boon in boosting the air quality of major Indian Metropolitan Cities.

Aerobiologia (Bologna) 2021 17;37(1):79-103. Epub 2020 Nov 17.

Department of Geography, Jai Narain Vyas University, Jodhpur, Rajasthan 342011 India.

Abstract: The COVID-19 lockdown has not only helped in combating the community transmission of SARS-CoV-2 but also improved air quality in a very emphatic manner in most of the countries. In India, the first phase of COVID-19 lockdown came into force on March 25, 2020, which was later continued in the next phases. The purpose of this study was to investigate the result of lockdown on air quality of major metropolitan cities-Delhi, Mumbai, Kolkata, Chennai, Bengaluru, Hyderabad, Jaipur, and Lucknow-from March 25 to May 3, 2020. Read More

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November 2020

Disinfection efficiency of hospital infectious disease wards with chlorine dioxide and hypochlorous acid.

Aerobiologia (Bologna) 2020 Nov 5:1-10. Epub 2020 Nov 5.

Department of Environmental Resources Management, Chia-Nan University of Pharmacy and Science, Tainan, 71710 Taiwan.

The disinfection efficiencies of two chemical disinfectants, chlorine dioxide and weak acid hypochlorous water (WAHW), were examined in the soiled room and dishwashing room of a hospital infectious disease ward in Taiwan. The investigations were conducted in two seasons, namely winter and summer, in order to examine the correlation between the bioaerosol concentration and the environmental factors. In addition, a single-daily disinfection mode (SM) and a twice-daily disinfection mode (TM) were applied in this study. Read More

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November 2020

Assessment of culturable airborne bacteria of indoor environments in classrooms, dormitories and dining hall at university: a case study in China.

Aerobiologia (Bologna) 2020 2;36(3):313-324. Epub 2020 Mar 2.

School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, China.

University students' health may be adversely affected by exposure to indoor bacterial contaminants on their campuses. This study aims (1) to quantify culturable bacterial concentrations in three indoor environments at a university, (2) to investigate the influence of meteorological factors and gender, to assess the relationship between indoor and outdoor, and (3) to estimate the bacterial dose for university students in different indoor environments. Airborne bacteria samples were collected in 12 classrooms, in 12 living rooms and four bathrooms in two dormitory buildings, and in a dining hall. Read More

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Pollen calendars and maps of allergenic pollen in North America.

Aerobiologia (Bologna) 2019 17;35(4):613-633. Epub 2019 Jul 17.

2Department of Emergency Medicine, School of Medicine, University of Washington, 4225 Roosevelt Way NE #100, Suite 2330, Box 354695, Seattle, WA 98105 USA.

Pollen is a common allergen that causes significant health and financial impacts on up to a third of the population of the USA. Knowledge of the main pollen season can improve diagnosis and treatment of allergic diseases. Our objective in this study is to provide clear, quantitative visualizations of pollen data and make information accessible to many disciplines, in particular to allergy sufferers and those in the health field. Read More

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Adenovirus behavior in air handling unit fiberglass filters.

Aerobiologia (Bologna) 2019 4;35(2):357-366. Epub 2019 Feb 4.

2EHESP, 35000 Rennes, France.

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. Read More

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February 2019

Identification of birch pollen species using FTIR spectroscopy.

Aerobiologia (Bologna) 2018 4;34(4):525-538. Epub 2018 Jul 4.

1Institute of Nuclear Physics Polish Academy of Sciences, 31342 Kraków, Poland.

In this study, the morphology and chemical composition of pollen grains of six birch species (, , , and ) were examined to verify which of these features allow distinguishing them in a more unambiguous way. For this purpose, scanning electron microscopy and light microscopy, as well as Fourier transform infrared (FTIR) spectroscopy and curve-fitting analysis of amide I profile, were performed. The microscopy images show that the pollen grains of , and are similar in diameter and significantly smaller than those of others species, with the largest diameter observed for . Read More

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The impact of meteorological conditions on the concentration of alder pollen in Sosnowiec (Poland) in the years 1997-2017.

Aerobiologia (Bologna) 2018 12;34(4):469-485. Epub 2018 Jun 12.

2Department of Climatology, Faculty of Earth Sciences, University of Silesia, Będzińska 60, 41-200 Sosnowiec, Poland.

The aim of the work was to compare the alder pollen seasons in the years 1997-2017 in Sosnowiec. The measurements of pollen concentration were taken with the volumetric method using Burkard's apparatus. The impact of atmospheric conditions on the daily alder pollen grain concentration, the annual totals, and the duration of pollen seasons were studied. Read More

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Field Studies Measuring the Aerosolization of Endotoxin During the Land Application of Class B Biosolids.

Aerobiologia (Bologna) 2017 Sep;33(3):417-434

US Environmental Protection Agency, Region 8, Denver, CO 80202.

Endotoxins are a component of Gram-negative bacteria cell walls and are known to be present in biosolids. Endotoxins have been shown to be potent stimulators of the innate immune response causing airway irritation and shortness of breath. Class B biosolids are routinely applied to agricultural lands to enhance soil properties and can be used as an alternative to chemical fertilizers. Read More

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September 2017

Influence of meteorological factors on the level and characteristics of culturable bacteria in the air in Gliwice, Upper Silesia (Poland).

Aerobiologia (Bologna) 2018 1;34(2):241-255. Epub 2018 Mar 1.

Department of Air Protection, Silesian University of Technology, 22B Konarskiego St., 44-100 Gliwice, Poland.

Numerous studies have focused on occupational and indoor environments because people spend more than 90% of their time in them. Nevertheless, air is the main source of bacteria in indoors, and outdoor exposure is also crucial. Worldwide studies have indicated that bacterial concentrations vary among different types of outdoor environments, with considerable seasonal variations as well. Read More

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Comparative analysis of airborne bacteria and fungi in two salt mines in Poland.

Aerobiologia (Bologna) 2018 17;34(2):127-138. Epub 2017 Nov 17.

2Division of Phytopathology and Mycology, Department of Plant Protection, Wroclaw University of Environmental and Life Sciences, Grunwaldzki Sq. 24a, 50-363 Wrocław, Poland.

The aim of this work was to determine the genera or species composition and the number of colony forming units of airborne bacteria and fungi, respectively, in two salt mines in Poland "Wieliczka" (Lesser Poland) and "Polkowice-Sieroszowice" (Lower Silesia). Both of them are working environments characterized by extreme conditions, and additionally "Wieliczka," officially placed on the UNESCO World Heritage Sites' list, plays a role of tourist attraction. There are also some curative chambers located in this mine. Read More

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November 2017

Airborne fungi as indicators of ecosystem disturbance: an example from selected Tatra Mountains caves (Poland).

Aerobiologia (Bologna) 2018 27;34(1):111-118. Epub 2017 Sep 27.

Tatra National Park, Kuźnice 1, 34-500 Zakopane, Poland.

We report on the determination of the spore concentration and the species composition of the airborne fungi in selected caves of the Tatra Mountains, Poland. The following caves were surveyed: Mylna, Obłazkowa, Mroźna, Zimna and Naciekowa. The sampling was carried out in July 2015 and in January 2016. Read More

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September 2017

A comparative study of hourly and daily relationships between selected meteorological parameters and airborne fungal spore composition.

Aerobiologia (Bologna) 2018 19;34(1):45-54. Epub 2017 Jul 19.

2Faculty of Geosciences, University of Szczecin, Mickiewicza 18, 70-383 Szczecin, Poland.

Air sampling was conducted in Szczecin (Poland) throughout April-September 2013. The final data set included 177 daily and 4248 hourly samples. The total of 21 types of spores, which occurred in a number >10 in the season, were taken into account. Read More

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Phenotypic and genotypic diversity of airborne fungal spores in Demänovská Ice Cave (Low Tatras, Slovakia).

Aerobiologia (Bologna) 2018 3;34(1):13-28. Epub 2017 Jul 3.

4Department of Microbiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. Hlinku 2, 949-76 Nitra, Slovakia.

This paper is the first aero-mycological report from Demänovská Ice Cave. Fungal spores were sampled from the internal and external air of the cave in June, 2014, using the impact method with a microbiological air sampler. Airborne fungi cultured on PDA medium were identified using a combination of classical phenotypic and molecular methods. Read More

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Allergenic Asteraceae in air particulate matter: quantitative DNA analysis of mugwort and ragweed.

Aerobiologia (Bologna) 2017 6;33(4):493-506. Epub 2017 Jun 6.

Biogeochemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, 55128 Mainz, Germany.

Mugwort () and ragweed () are highly allergenic Asteraceae. They often cause pollen allergies in late summer and fall. While mugwort is native to Europe, ragweed reached Europe as a neophyte from North America about 150 years ago and continued spreading ever since. Read More

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Inhalable dust, endotoxins and (1-3)-β-d-glucans as indicators of exposure in waste sorting plant environment.

Aerobiologia (Bologna) 2017 26;33(4):481-491. Epub 2017 May 26.

Nofer Institute of Occupational Medicine, 8 Teresy Str, 91-348 Lodz, Poland.

The aim of the study was to assess the levels of inhalable dust, endotoxins and (1-3)-β-d-glucans as agents harmful to the respiratory tract of workers of municipal waste sorting plants and interaction between these agents based on the measurements taken in two plants with different processing capacities. The study was conducted in summer season in two waste sorting plants (WSPs) differing in processing capacity. Samples of bioaerosol for inhalable dust (gravimetric method), endotoxins (LAL test in kinetic, chromogenic version) and (1-3)-β-d-glucans (Glucatell test in kinetic version) were collected from 42 sorting workers using individual aspirators with glass fiber filters during the work shift. Read More

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The relationship between birch pollen, air pollution and weather types and their effect on antihistamine purchase in two Swedish cities.

Aerobiologia (Bologna) 2017 6;33(4):457-471. Epub 2017 Apr 6.

Department of Biological and Environmental Sciences, University of Gothenburg, P.O. Box 461, 405 30 Gothenburg, Sweden.

Exposure to elevated air pollution levels can aggravate pollen allergy symptoms. The aim of this study was to investigate the relationships between airborne birch () pollen, urban air pollutants NO, O and PM and their effects on antihistamine demand in Gothenburg and Malmö, Sweden, 2006-2012. Further, the influence of large-scale weather pattern on pollen-/pollution-related risk, using Lamb weather types (LWTs), was analysed. Read More

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Phenotypic and molecular assessment of antimicrobial resistance profile of airborne spp. isolated from flats in Kraków.

Aerobiologia (Bologna) 2017 10;33(3):435-444. Epub 2017 Apr 10.

Centre for Microbiological Research and Autovaccines, Sławkowska 17, 31-016 Kraków, Poland.

Bacteria of the genus were isolated from air sampled from living spaces in Kraków (Poland). In total, 55 strains belonging to the genus were isolated from 45 sites, and 13 species of coagulase-negative staphylococci were identified. The species composition of studied airborne microbiota contains species that are rarely infectious to humans. Read More

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Source regions of ragweed pollen arriving in south-western Poland and the influence of meteorological data on the HYSPLIT model results.

Aerobiologia (Bologna) 2017 20;33(3):315-326. Epub 2017 Jan 20.

Department of Climatology and Atmosphere Protection, University of Wrocław, Wrocław, Poland.

We have investigated the relationship between the inflow of air masses and the ragweed pollen concentration in SW Poland (Wrocław) for a 10-year period of 2005-2014. The HYSPLIT trajectory model was used to verify whether episodes of high concentrations can be related to regions outside of the main known ragweed centres in Europe, like Pannonian Plain, northern Italy and Ukraine. Furthermore, we used two different meteorological data sets (the global GDAS data set and from the WRF mesoscale model; the meteorological parameters were: U and V wind components, temperature and relative humidity) into HYSPLIT to evaluate the influence of meteorological input on calculated trajectories for high concentration ragweed episodes. Read More

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January 2017

Spatial and temporal variations in airborne pollen in Europe.

Aerobiologia (Bologna) 2017 17;33(2):181-189. Epub 2016 Nov 17.

V. F. Kuprevich Institute for Experimental Botany of the NAS of Belarus, Minsk, Belarus.

The European Commission Cooperation in Science and Technology (COST) Action FA1203 "SMARTER" aims to make recommendations for the sustainable management of across Europe and for monitoring its efficiency and cost-effectiveness. The goal of the present study is to provide a baseline for spatial and temporal variations in airborne pollen in Europe that can be used for the management and evaluation of this noxious plant. The study covers the full range of L. Read More

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November 2016

On impact of transport conditions on variability of the seasonal pollen index.

M Sofiev

Aerobiologia (Bologna) 2017 24;33(1):167-179. Epub 2016 Oct 24.

Finnish Meteorological Institute, Erik Palmenin Aukio, 1, Helsinki, Finland.

This discussion paper reveals the contribution of pollen transport conditions to the inter-annual variability of the seasonal pollen index (SPI). This contribution is quantified as a sensitivity of the pollen model predictions to meteorological variability and is shown to be a noticeable addition to the SPI variability caused by plant reproduction cycles. A specially designed SILAM model re-analysis of pollen seasons 1980-2014 was performed, resulting in the 35 years of the SPI predictions over Europe, which was used to compute the SPI inter-annual variability. Read More

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October 2016