scholarly journals Pollen and Fungal Spores Evaluation in Relation to Occupants and Microclimate in Indoor Workplaces

2021 ◽  
Vol 13 (6) ◽  
pp. 3154 ◽  
Author(s):  
Maria Concetta D’Ovidio ◽  
Simona Di Renzi ◽  
Pasquale Capone ◽  
Armando Pelliccioni
Keyword(s):  
Indoor Air ◽  
Air Conditioning ◽  
Fungal Spores ◽  
Working Hours ◽  
Fungal Spore ◽  
Aerobiological Monitoring ◽  
Additional Information ◽  
Protection Strategies ◽  
Occupational Allergies

Indoor air quality depends on many internal or external factors mutually interacting in a dynamic and complex system, which also includes indoor workplaces, where subjects are exposed to many pollutants, including biocontaminants such as pollen and fungal spores. In this context, the occupants interact actively with their environment through actions, modifying indoor environmental conditions to achieve their own thermal comfort. Actions such as opening/closing doors and windows and turning on/off air conditioning could have effects on workers’ health. The present study explored the contribution of human occupants to pollen and fungal spore levels in indoor workplaces, combining aerobiological, microclimate, and worker monitoring during summer and winter campaigns. We evaluated the overall time spent by the workers in the office, the workers’ actions regarding non-working days and working days, and non-working hours and working hours, during two campaigns of pollen and fungal spore monitoring. Our results showed that the biocontaminant values depend on many mutually interacting factors; hence, the role of all of the factors involved should be investigated. In this regard, aerobiological monitoring should be a valid tool for the management of occupational allergies, providing additional information to improve occupational health protection strategies.

scholarly journals Global modeling of fungal spores with the EMAC chemistryclimate model: uncertainties in emission parametrizations and observations

2019 ◽  
Author(s):  
Meryem Tanarhte ◽  
Sara Bacer ◽  
Susannah M. Burrows ◽  
J. Alex Huffman ◽  
Kyle M. Pierce ◽  
...  
Keyword(s):  
Urban Areas ◽  
Climate Model ◽  
Strong Dependence ◽  
Fungal Spores ◽  
Fungal Spore ◽  
Specific Humidity ◽  
Area Index ◽  
Climate Interactions

Abstract. Primary biological aerosol particles (PBAPs) may impact human health and aerosol-cloud-climate interactions. The role of PBAPs in the earth system is associated with large uncertainties, for example of source estimates and the atmospheric lifetime. We used a chemistry-climate model to simulate PBAPs in the atmosphere including bacteria and fungal spores. Three fungal spore emission parameterizations have been evaluated against an updated set of spore counts synthesized from observations reported in the literature. The comparison indicates an optimal fit for the emission parameterization proposed by Heald and Spracklen (2009) and adapted by Hoose et al. (2010) for particle sizes of 5 µm or 3 µm, although the model still overpredicts PBAP concentrations in some locations. The correlations between the spore count observations and meteorological parameters simulated by the model show a strong dependence on the leaf area index in non-urban areas and the specific humidity in urban areas. Additional evaluation was performed by comparing our combined bacteria and fungal spore simulations to a global dataset of fluorescent biological aerosol particle (FBAP) concentrations. The model predicts the total sum of measured PBAP concentrations relatively well, typically within a factor of two of FBAP. Further, the modeled fungal spore results deviate from the FBAP concentrations when used as a rough proxy for spores, depending on the particle size used in the parametrization. Uncertainties related to technical aspects of the FBAP and direct-counting spore measurements challenge the ability to further refine quantitative comparison on this scale. Additional long-term data of better quality are needed to improve emission parameterizations.

scholarly journals Viable and not viable spore concentrations in National Gallery of Umbria (Italy)

Aerobiologia ◽  
2021 ◽  
Author(s):  
Luigia Ruga ◽  
Fabio Orlandi ◽  
Marco Fornaciari
Keyword(s):  
Indoor Air ◽  
Environmental Conditions ◽  
Central Italy ◽  
Fungal Spores ◽  
Fungal Spore ◽  
National Gallery ◽  
Air Conditioning System ◽  
Significant Relationships ◽  
Conservation Actions ◽  
Fungal Particles

AbstractThe conservation actions towards artworks holding a common patrimony for the community are of primary importance, but also those related to their "container" as museums, libraries or archives are to consider. Fungal spores and bacteria carried by air flows to the artwork surface can colonize it causing biodeterioration through physical and/or chemical alterations of the materials with the irreversible loss of their value. The quality control of the indoor air surrounding the historic building is essential, as well as for the protection and conservation of the artwork, also for the protection of the health of operators and visitors. The aim of this study was to monitor airborne fungal particles, through volumetric spore traps, for improving the knowledge about the conservation and protection of artworks in the museum environment analysing the principal relationships between indoor environmental conditions and potentially biodeteriogen fungal spore growth. The evidence of no significant relationships between spore concentrations and environmental conditions recorded inside the different expositive rooms testified the regular and correct maintenance of the air conditioning system inside the considered building (National Gallery of Umbria, central Italy). Moreover, in a specific museum room a significant spore concentration decreasing trend was recorded mainly due to a structural modification in the same building.

Teaching the Microscopy of Indoor Air Quality - Lessons and Implications for the Future of the Science

2001 ◽  
Vol 7 (S2) ◽  
pp. 476-477
Author(s):  
John Shane
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Fungal Spores ◽  
Fungal Spore ◽  
The United States ◽  
Spores And Pollen ◽  
The People ◽  
Proper Training ◽  
The Common

Indoor air quality concerns are becoming increasingly important in the United States as a result of a greater awareness of the harm fungi can cause to structures and the people living in those structures. By making our homes and offices more energy efficient and by making heating and ventilation systems more complex we have also created some indoor air quality problems.Microscopical indoor air investigations are growing rapidly as evidenced by the number of asbestos and other labs getting into the fungal spore identification business. Many companies are growing by 20% a month and cannot find enough qualified microscopists to perform the identification of the fungi..There is a real need to revitalize the teaching of light microscopy to solve indoor air problems. Fungal spores and pollen are the common culprits that cause indoor air quality problems that can be studied with the light microscope. with proper training, an indoor air quality investigator can make better use of their elegant analytical tool, viz.

scholarly journals Global modeling of primary biological particle concentrations with the EMAC chemistry-climate model

2018 ◽  
Author(s):  
Meryem Tanarhte ◽  
Sara Bacer ◽  
Susannah M. Burrows ◽  
J. Alex Huffman ◽  
Kyle M. Pierce ◽  
...  
Keyword(s):  
Climate Model ◽  
Atmospheric Transport ◽  
Fungal Spores ◽  
Fungal Spore ◽  
Spores And Pollen ◽  
Sea Salt Aerosols ◽  
Aerosol Mass ◽  
Climate Interactions ◽  
Almost All

Abstract. Primary biological aerosol particles (PBAPs) may impact human health and aerosol-climate interactions. The role of PBAPs in the earth system is associated with large uncertainties, related to source estimates and atmospheric transport. We used a chemistry-climate model to simulate PBAPs in the atmosphere including bacteria, fungal spores and pollen. Three fungal spore emission parameterizations have been evaluated against an updated set of spore counts synthesized from observations reported in the literature. The comparison indicates an optimal fit for the emission parameterization proposed by Heald and Spracklen (2009), although the model significantly over-predicts PBAP concentrations in some locations. Additional evaluation was performed by comparing our combined bacteria and fungal spore simulations to a global dataset of fluorescent biological aerosol particle (FBAP) concentrations. The model predicts the sum total of measured PBAP concentrations relatively well, with an over- or under-prediction of less than a factor of 2 compared to FBAP. The ratio of bacteria to fungal spores reflects a greater difference, however, and the simulated bacteria concentrations outnumber the simulated fungal spore concentrations in almost all locations. Further, the modeled fungal spore results under-predict the FBAP concentrations, which are used here as a rough proxy for spores. Uncertainties related to technical aspects of the FBAP and direct-counting spore measurements challenge the ability to further refine quantitative comparison on this scale. We estimate that the global PBAPs mass concentration (apart from desert dust and sea salt aerosols), i.e. of fungal spores and pollen, amounts to 19 % and 52 % of the total aerosol mass, respectively.

Role of Yoga in Lifestyle Disorders w.s.r. to Diabetes Mellitus Type-2

2019 ◽  
Vol 4 (03) ◽  
Author(s):  
Tushar K. Pardeshi ◽  
Sachinkumar Patil
Keyword(s):  
Diabetes Mellitus ◽  
Diabetes Mellitus Type 2 ◽  
Healthy Lifestyle ◽  
Working Hours ◽  
Behavioral Pattern ◽  
Current Trends ◽  
Diet Pattern ◽  
Speed And Accuracy

21st century is full of stress requiring more speed and accuracy. In today’s world of competition, diet pattern, lifestyle and behavioral pattern of people has changed. Late working hours, deadlines of work and stress have become a parcel of daily life. Due to this people have won’t have time for exercise and Yoga and end up in various lifestyle disorder, like Diabetes mellitus, Dyslipidemia, Obesity, Cardiovascular diseases etc. Diabetes mellitus is one of most leading disorder in all of them. The worldwide prevalence of D.M. has raised dramatically over past two decades, from an estimated 30 million cases in 1985 to 177 million in 2000. Based on current trends, > 360 million individuals will have diabetes by the year 2030. Diabetes mellitus is mentioned in our Samhitas as disorder of lethargic and exercise less lifestyle disorder and termed it as Madhumeha. Caused by mainly Apathyaahara and Viharsevana. Chikitsa of Madhumeha focused on Pathyaaahara and Vihar (lifestyle) in management of Madhumeha. This article is deal with healthy lifestyle including Yoga mentioned in Ayurveda Samhita for management of prevention and treatment of Lifestyle disorders.

scholarly journals Diversity, Concentration and Dynamics of Culturable Fungal Bioaerosols at Doha, Qatar

2020 ◽  
Vol 18 (1) ◽  
pp. 182
Author(s):  
Raghdaa K. Fayad ◽  
Roda F. Al-Thani ◽  
Fatima A. Al-Naemi ◽  
Mohammed H. Abu-Dieyeh
Keyword(s):  
Species Richness ◽  
Fungal Spores ◽  
Gravimetric Method ◽  
Fungal Spore ◽  
Industrial Area ◽  
Airborne Fungi ◽  
Culture Collection ◽  
Colony Count ◽  
Study Sites ◽  
Future Work

This research was conducted to investigate the dynamics of airborne fungi using viable culture collection and in respect to different abiotic variables, including seasonal and intra-diurnal variations. A gravimetric method was used to sample airborne fungal deposition on potato dextrose agar plates on alternate days, for a year between April 2015 to March 2016. From 176 settle plate exposures, a total of 1197 mould and 283 yeast colony-forming units (CFU), 21 genera and 62 species were retrieved. The highest fungal spore count was recorded in February 2016, whereas the lowest count occurred in August 2015. The main constituents of the fungal airspora were attributed to Cladosporium (60.2%), Aspergillus (10.4%), Fusarium (9.4%), Alternaria (8.5%), and Ganoderma spp. (2.3%). Temperature was negatively correlated with total colony count (r = −0.231, p ≤ 0.05) or species richness (r = −0.267, p ≤ 0.001), while wind speed was positively correlated with total colony count (r = 0.484, p ≤ 0.001) or species richness (r = 0.257, p ≤ −0.001). The highest dispersal of fungal spores was obtained at 18:00, whereas the lowest fungal spores release was recorded at 00:00 (midnight). There were no significant differences in species composition and richness of the airborne fungal population between two study sites, the Industrial area and Qatar University Campus. The count of Alternaria spp. and Fusarium spp. were significantly higher at the Industrial area site, which corresponds to a higher CO2 level than the Qatar University site. This study lays the foundation for future work to assess the implications of such aeromycological data on public health.

Los estereotipos sociales a través del filtro de la traducción

Babel ◽  
2014 ◽  
Vol 60 (2) ◽  
pp. 216-233
Author(s):  
Gemma Andújar Moreno
Keyword(s):  
Social Representations ◽  
Social Perceptions ◽  
Source Text ◽  
Additional Information ◽  
Social Stereotypes ◽  
Cultural Systems ◽  
The Social ◽  
Thought Patterns ◽  
Points Of View

Cultural referents not only designate specific realities of a given culture which do not always exist in another but they are also semantic elements which trigger social representations. By conveying values and points of view about different social groups, cultural referents become linguistic instruments to build stereotypes. These thought patterns are shared by the members of a social or cultural community and act as a filter of reality. The aim of this paper is to study the role of cultural referents in the construction of social stereotypes, focusing on the socio-cognitive universe they evoke. To this end, we have analyzed the translations techniques applied in the Spanish, Catalan and English versions of a novel which has been very successful on the French literary scene: Muriel Barbery’s L’Élégance du hérisson (2006). As show the results of this textual comparison, the explanations, descriptions and additional information observed in target texts do not trigger the same associations as cultural referents do in the source text. Translational approaches are too limited when it comes to achieve linguistic adequacy to different world visions. Therefore, translation must be conceived as an encounter between two cultural systems, in which the translator must build bridges, not so much between two linguistic systems as between the social perceptions and values of two different cultural communities.

scholarly journals The Role of Averaging for Improving Sea Surface Salinity Retrieval from the Soil Moisture and Ocean Salinity (SMOS) Satellite and Impact of Auxiliary Data

2007 ◽  
Vol 24 (2) ◽  
pp. 255-269 ◽  
Author(s):  
Sabine Philipps ◽  
Christine Boone ◽  
Estelle Obligis
Keyword(s):  
Soil Moisture ◽  
Sensitivity Study ◽  
Sea Surface ◽  
Sea Surface Salinity ◽  
Global Ocean ◽  
Surface Salinity ◽  
Auxiliary Data ◽  
Additional Information ◽  
Ocean Salinity

Abstract Soil Moisture and Ocean Salinity (SMOS) was chosen as the European Space Agency’s second Earth Explorer Opportunity mission. One of the objectives is to retrieve sea surface salinity (SSS) from measured brightness temperatures (TBs) at L band with a precision of 0.2 practical salinity units (psu) with averages taken over 200 km by 200 km areas and 10 days [as suggested in the requirements of the Global Ocean Data Assimilation Experiment (GODAE)]. The retrieval is performed here by an inverse model and additional information of auxiliary SSS, sea surface temperature (SST), and wind speed (W). A sensitivity study is done to observe the influence of the TBs and auxiliary data on the SSS retrieval. The key role of TB and W accuracy on SSS retrieval is verified. Retrieval is then done over the Atlantic for two cases. In case A, auxiliary data are simulated from two model outputs by adding white noise. The more realistic case B uses independent databases for reference and auxiliary ocean parameters. For these cases, the RMS error of retrieved SSS on pixel scale is around 1 psu (1.2 for case B). Averaging over GODAE scales reduces the SSS error by a factor of 12 (4 for case B). The weaker error reduction in case B is most likely due to the correlation of errors in auxiliary data. This study shows that SSS retrieval will be very sensitive to errors on auxiliary data. Specific efforts should be devoted to improving the quality of auxiliary data.

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