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1.
Sci Total Environ ; 891: 164694, 2023 Sep 15.
Article in English | MEDLINE | ID: covidwho-20237880

ABSTRACT

Since the outbreak of the COVID-19 pandemic, many previous studies using computational fluid dynamics (CFD) have focused on the dynamics of air masses, which are believed to be the carriers of respiratory diseases, in enclosed indoor environments. Although outdoor air may seem to provide smaller exposure risks, it may not necessarily offer adequate ventilation that varies with different micro-climate settings. To comprehensively assess the fluid dynamics in outdoor environments and the efficiency of outdoor ventilation, we simulated the outdoor transmission of a sneeze plume in "hot spots" or areas in which the air is not quickly ventilated. We began by simulating the airflow over buildings at the University of Houston using an OpenFOAM computational fluid dynamics solver that utilized the 2019 seasonal atmospheric velocity profile from an on-site station. Next, we calculated the length of time an existing fluid is replaced by new fresh air in the domain by defining a new variable and selecting the hot spots. Finally, we conducted a large-eddy simulation of a sneeze in outdoor conditions and then simulated a sneeze plume and particles in a hot spot. The results show that fresh incoming air takes as long as 1000 s to ventilate the hot spot area in some specific regions on campus. We also found that even the slightest upward wind causes a sneeze plume to dissipate almost instantaneously at lower elevations. However, downward wind provides a stable condition for the plume, and forward wind can carry a plume even beyond six feet, the recommended social distance for preventing infection. Additionally, the simulation of sneeze droplets shows that the majority of the particles adhered to the ground or body immediately, and airborne particles can be transported more than six feet, even in a minimal amount of ambient air.


Subject(s)
Air Pollution, Indoor , COVID-19 , Humans , Air Pollution, Indoor/analysis , Pandemics , COVID-19/epidemiology , Computer Simulation , Wind
2.
Indoor and Built Environment ; 2023.
Article in English | Web of Science | ID: covidwho-2327908

ABSTRACT

Eye discomfort is a major complaint reported in indoor spaces and has been suggested to be exacerbated by environmental conditions such as low humidity and high air velocity. Wearing face masks, which has become essential in our daily lives during the COVID-19 pandemic, can also cause eye discomfort by affecting the microclimate around the eyes. We conducted a pilot study to evaluate the effect of wearing masks on eye discomfort by measuring the physical environment around the eyes and short-term physiological and psychological responses and comparing them with and without surgical face masks. The results showed that when the participant wore a mask, exhaled air flowed out through the gap at the top edge of the mask, resulting in a higher air velocity and absolute humidity around the eyes than when the mask was not worn. No significant differences were found in subjective discomfort, tear-film stability, ocular surface temperature or blink frequency. However, the tear evaporation rate, estimated based on physical measurements, was greater when wearing a mask than when not wearing it. This study revealed that wearing face masks can negatively affect the environment around the eyes in terms of tear-film health.

3.
Atmosphere ; 14(4):743, 2023.
Article in English | ProQuest Central | ID: covidwho-2296724

ABSTRACT

The indoor climate of non-climatized churches is usually subject to cyclical fluctuations of temperature and relative humidity induced by external climate conditions which might be dampened by the high thermal capacity of their envelope. However, several phenomena affect their indoor climate (e.g., internal gains due to people and artificial lighting, air infiltration, etc.), which lead to environmental variations that might jeopardize the artworks contained within. In particular, one of the most influential parameters that may affect non-climatized churches is the massive and intermittent presence of people who constantly visit their spaces. In such regard, long-term monitoring allows the collection of environmental data with different building operation conditions and visitor fluxes. This paper analyses the indoor climate of the Milan Cathedral (Duomo di Milano) in Italy for three continuous years (including the lockdown period that occurred in 2020 caused by the COVID-19 pandemic), with a focus on visitors' effects on the indoor environment and the conservation of the main artworks contained within. The results of the analysis have shown that spaces with huge volume are most influenced by the opening of the doors rather than the hygrothermal contribution of the intermittent presence of massive crowds. Moreover, the absence of visitors for a prolonged period correlates with an improvement in the indoor conservation conditions for artworks, especially those made of hygroscopic materials, due to the reduction in short, rapid climate fluctuations.

4.
Urban Forestry and Urban Greening ; 82, 2023.
Article in English | Scopus | ID: covidwho-2275424

ABSTRACT

Lack of thermal comfort in the existing building stock in many warm summer climates and the COVID-19 pandemic have increased residents' temporary occupation of urban open spaces. However, climate change and other effects such as urban heat islands are also negatively affecting the livability of these spaces. Therefore, strategies are needed to improve the thermal conditions in these areas. In this context, the research designs, simulates and assesses an urban green infrastructure supported by an adaptative solar shading system. For this purpose, a public square to be renovated in Seville (Spain) is chosen. After an analysis of the current situation, more vegetation is added. However, trees are not planted fully grown, so their cover is not enough in the short term and an artificial system that protects from the sun by casting shade and that adapts to both their growth and the seasons is included. The urban space is characterized by on-site measurements, proposing four (initial, intermediates and final) scenarios using computational fluid dynamics simulations in an holistic microclimate modelling system. In turn, changes in thermal comfort are analyzed using the COMFA model. Results show that the air and surface temperature are decreased, reducing the number of hours in discomfort by 21% thanks to incorporating the green structure and by 30% due to the vegetation. It can be concluded that the use of these temporary urban prostheses enables urban spaces regenerated with vegetation to be enjoyed without waiting 20 or 30 years for the trees to mature, encouraging people to spend more time outdoors from the start of the intervention. © 2023 The Authors

5.
Psiholoska Obzorja / Horizons of Psychology ; 31:482-492, 2022.
Article in English | APA PsycInfo | ID: covidwho-2113466

ABSTRACT

(Slovene) Razsikovanje socialno-custvenega zdravja ucencev je pomembna za kakovostno ucenje in njihovo blagostanje v soli, se posebno v casu izzivov, ki jih prinasa pandemija COVID-19. Namen: raziskati socialno-custveno zdravje mlajsih ucencev, njihovo zadovoljstvo z zivljenjem in zaznano solsko klimo v casu pandemske krize in prevladujocega ucenja na daljavo z uporabo vzdolznega pristopa. Metoda: Vprasalnik Socialnega in custvenega zdravja-osnovna (Social and Emotional Health Survey-Primary;SEHS-P;Furlong idr., 2013) in Vecdimenzionalna lestvica zadovoljstva z zivljenjem za ucence (Multidimensional Students Life Satisfaction Scale;MSLSS;Huebner, 2001). Vzorec je obsegal 84 ucencev Litvanskih osnovnih sol (starih med 10 in 12 let). Rezultati in sklepi: Prvi meseci pandemske krize so vodili k poslabsanju socialno-custvenega zdravja in zadovoljstva ucencev. Vendar pa je bilo po osmih mesecih (retest) moc opaziti nekaj izboljsanja v custvenem zdravju, zadovoljstvu ucencev z zivljenjem ter razredni mikroklimi. Med ucenci ni bilo moc opaziti razlik po spolu. Rezultati so prav tako pokazali pozitivne in znacilne povezanosti med socialno-custvenim zdravjem ucencev, njihovim zadovoljstvom z zivljenjem ter zaznano solsko klimo;regresijske analize so pokazale, da ima druzina pomembno vlogo pri oblikovanju socialno-custvenega zdravja ucencev. Podpora uciteljev pri ucenju na daljavo je lahko izboljsala razredno mikroklimo, poznavanje zdravstvenega stanja ucencev pa jim je lahko pomagalo pri prilagajanju ucenje na daljavo, da je bilo to v casu pandemske krize bolj ucinkovito. (PsycInfo Database Record (c) 2022 APA, all rights reserved)

6.
Canadian Veterinary Journal ; 63(3):317, 2022.
Article in English | EMBASE | ID: covidwho-2030701
7.
International Journal of Speleology ; 51(2):133-139, 2022.
Article in English | Scopus | ID: covidwho-2025064

ABSTRACT

Waitomo Glowworm Cave is a highly visited cave where the highlight is viewing the bioluminescence display of a large colony of glowworms. Anthropogenic carbon dioxide build-up in the cave is prevented by management of chimney-effect ventilation aided by a network of microclimate sensors. A cave door prevents ventilation under drying conditions and promotes it when necessary to clear CO2 and when inflowing air has high relative humidity. A COVID-19-related nationwide “lockdown” in New Zealand from March 2020 resulted in neither staff nor visitors being present in the cave for 60 days, and provided an opportunity to assess the natural microclimate of the cave, especially the natural variation in partial pressure of carbon dioxide (pCO2). In addition, comparison to the previous year showed that the presence of people in the cave increased the cave temperatures but the effect was short-lived due to cave ventilation. During the period of lockdown, the daily increase of carbon dioxide partial pressure (pCO2) due to visitors was absent. When the cave door remained sealed, pCO2 varied and tended to lie at levels above that of the external atmosphere (410 ppm). Notably, rain events raised pCO2 by up to 200 ppm (v/v), which appeared to be sourced from both stream water and drip water. These natural CO2 sources rarely reached the levels associated with cave visitation. The results support current management practices that use door control to enhance cave ventilation when people are in the cave or when natural conditions (high stream levels and high drip-water levels) promote CO2 outgassing into the cave. Suppressing ventilation outside of those times reduces the risk of introducing dry air that could desiccate the glowworms. © 2022, Societa Speleologica Italiana. All rights reserved.

8.
Stud Health Technol Inform ; 297: 507-514, 2022 Sep 02.
Article in English | MEDLINE | ID: covidwho-2022605

ABSTRACT

The use of cultural sites has been profoundly altered by the recent pandemic events with relevant consequences on the cultural heritage industry. While before the CoVid-19 pandemic access to Cultural Sites used to involve a simplified form of control, in the transitional period between the pandemic and the post-pandemic, additional steps are required. The research aims to combine seemingly distant aspects: counteracting the spread of contagion and reorganising the admission processes to institutes of culture, such as museums. Based on the literature, it has been shown that the parameters determining air quality (temperature, relative humidity, concentration of pollutants, dust, CO2, etc.) influence the state of conservation of works of art, while their interaction with the spread of the epidemic has been slightly investigated. The research seeks to find innovative technological solutions to allow access and safe visits to the greatest possible number of users. A conscious design, therefore, must be put in place to allow everyone to enjoy works of art, exhibitions and shows. This is how the concept of universal design is declined here, introducing the concept of 'safe environment accessibility'. The first results of a research carried out on the microclimate and the air quality inside Tyrannicides Hall at the National Archaeological Museum of Naples (MANN) will be presented. A device called 'CapsulART' is designed to be placed at the entrance of a specific room, which acts as a filter and as a decompression chamber to lower the level of pollutants present on people's clothes and shoe soles. Through a reduction in temperature, parameters that may increase the ease of contagion (e.g. sweating) should be decreased.


Subject(s)
COVID-19 , Environmental Pollutants , COVID-19/epidemiology , Humans , Microclimate , Museums , Pandemics
9.
11th IFAC Symposium on Control of Power and Energy Systems, CPES 2022 ; 55:479-484, 2022.
Article in English | Scopus | ID: covidwho-2015378

ABSTRACT

This paper describes a microclimate monitoring system consisting of a LoRaWAN network of wireless climate sensors, a data collector and analytical software. The system is a part of the ICS RAS SmartGrid Centre project for predicting building energy consumption. During the design phase, the authors considered the concept of comfort, which is involved in setting control objectives for HVAC plants. It was necessary to overcome some characteristics of the LoRaWAN protocol, such as floating data transmission period and limited intensity of sensor communication. These have been overcome by post-processing the data with Python software, using libraries numpy and scipy. The collected data was passed through an interpolation filter for synchronization, and the resulting data is freely available in dataset format on our website for all interested researchers. Additionally, weather data was collected using a local meteostation to be considered as external disturbances in analysis problems. This paper also considers an approach to passive identification of the thermal protection parameters of a building. The coronavirus lockdown period was chosen to assume the impact of visitors negligible. The parameters are supposed to be estimated by correlation analysis. The estimates obtained should be compared with the values calculated according to ISO and Russian construction standards for diagnostic reasons. © 2022 Elsevier B.V.. All rights reserved.

10.
International Journal of Agricultural and Biological Engineering ; 15(3):55-61, 2022.
Article in English | ProQuest Central | ID: covidwho-1934919

ABSTRACT

Food security is one of the key global challenges in this century. In Singapore, our research team has been using novel aeroponic technology to produce fresh vegetables since 1997. Aeroponic systems allow for year-round production of not only tropical, but also sub-tropical and temperate fresh vegetables, by simply cooling the roots suspended in aeroponic systems while the aerial parts grow under tropical ambient environments. It has also been used to investigate the impacts of root-zone CO2 on vegetables by enriching root-zone CO2 while their aerial portions were subjected to constant atmospheric CO2. To compensate for the lack of available land, Singapore also needs to develop a farming system that can increase productivity per unit land area by many-fold. Over the past 10 years, my research team has established a commercially viable LED integrated vertical aeroponic farming system to grow different leafy vegetables under different LED spectra, intensities, and durations in the tropical greenhouse. The results demonstrate that it is possible to increase shoot production and rate of shoot production of leafy vegetables by increasing light intensity and extending the photoperiod under effective LED lighting. Furthermore, temperate vegetable crops such as lettuce were able to acclimate to high light intensity under supplementary LED lights to natural sunlight in the greenhouse. Supplementary LED lightings promote both leaf initiation and expansion with increased photo synthetic pigments, higher Cyt b6f and Rubisco protein contents on a per area basis and thus improve photosynthetic capacity and enhance productivity. Plants sense and respond to changes in their immediate environments (microclimate), manipulating the root zone temperature (RZT) and water supply will impact not only their growth and development but also their nutritional quality. Our on-going research aims to investigate if the nutritional quality of leafy vegetables could be improved under suboptimal RZT and mild water deficit through deficit irrigation. If substantial energy and water savings in urban farming can be achieved without substantial yield penalty but with higher nutritional quality, the amount of water and energy saved can bring substantial benefits to society.

11.
Sustainability ; 14(12):7089, 2022.
Article in English | ProQuest Central | ID: covidwho-1911535

ABSTRACT

Agrivoltaic systems have the potential to maximize the usefulness of spaces in building rooftops. Urban farming systems improve the microclimatic conditions, which are beneficial to solar photovoltaic (PV) systems, as they lower the operating temperatures, resulting in a higher operating efficiency. Microclimate simulations by means of ENVI-met simulation showed that between 0800 h and 1800 h, PV temperatures in the plot that has crops below the PV system were on average lower by 2.83 °C and 0.71 °C as compared without crops on a typical sunny and cloudy day, respectively. Hence, we may see PV efficiency performance improvement of 1.13–1.42% and 0.28–0.35% on a sunny day and cloudy day, respectively. Data collected from a physical prototype of an agrivoltaic system suggested that evaporative cooling was responsible for the reduction in ambient temperatures. The presence of crops growing underneath the PV canopy resulted in the agrivoltaic prototype generating between 3.05 and 3.2% more energy over the day as compared to a control system with no crops underneath.

12.
AGROFOR International Journal ; 7(1):48-56, 2022.
Article in English | CAB Abstracts | ID: covidwho-1903813

ABSTRACT

Around the world, urban and peri-urban agriculture (UPA) has evolved into a new socio-political manifestation that can endorse social solidarity, environmental education, and leisure activities. It is also a way to support the urban poor in middle and low-income counties and ensure food sovereignty and self-sufficiency. Furthermore, global shocks, pandemics, and crises (e.g., food crisis 2008, COVID- 19, climate change) have illustrated the vulnerability of the global food supply chain, as well as the need for resilience in cities' long-term food security, shedding more light on UPA's multiple functions in densely populated areas, offering an alternative land use and greater genuine value. Considering the present worldwide governmental push to promote urban agriculture and contemplate its consequences on urban dwellers and their environs, it is vital to investigate Egypt as one of the world's most populous countries, with densely packed cities and significant poverty rates. Using a systematic literature review, this article studies the impact of UPA in Egypt. Data were gathered using the Scopus database and supplemented with information from grey literature. The findings demonstrate that UPA can perform a wide range of socio-economic and environmental roles, including aesthetic urban design, waste management, circular economy, energy use efficiency, microclimate control, preservation of cultural heritage, biodiversity conservation, and health and well-being promotion. However, there is possible apprehension concerning soil erosion, extensive use of fertilizers and pesticides, contamination from wastewater resulting from the poor implementation. Finally, while UPA can make a beneficial difference in Egypt, socio-political, cultural, and technical hurdles may stymie its growth.

13.
International Journal of Environmental Research and Public Health ; 19(9):5477, 2022.
Article in English | ProQuest Central | ID: covidwho-1837519

ABSTRACT

Exposure to small public urban green spaces (SPUGS) has been demonstrated to have mental benefits for older adults. However, studies on identifying the objective environmental features of SPUGS and their effects on mental restoration for older adults remain limited. This study employed a multilevel regression model to investigate the restorative and vitalizing effects of the environmental features of 11 SPUGS in Tokyo. Onsite measurements were conducted in Kita-Ku, and 202 older adults were surveyed. The results showed that: (1) The fitting curve of the green view index and Restoration Outcome Scale (ROS) score showed an inverted U shape—both green view index and boundary enclosure had a strong impact on the mental restoration of older adults;(2) The colorfulness index showed the strongest relationship with the vitalizing effect. (3) The sky view factor and number of seats only influenced the ROS score, while the results of revitalization suggest that large areas of water should be avoided. (4) Physiological Equivalent Temperature (PET) was also confirmed to have negative effects on the mental restoration of older adults in autumn. These empirical findings can be used as a resource to promote the mental health of older adults in the design of SPUGS in high-density Asian countries.

14.
Buildings ; 12(4):395, 2022.
Article in English | ProQuest Central | ID: covidwho-1809719

ABSTRACT

The profile of urban microclimates is important in many engineering fields, such as occupant’s thermal comfort and health, and other building engineering. To predict the profile of urban microclimate, this study applies the artificial neural network and long short-term memory network predictive models, and an urban microclimate dataset was obtained with a long-term monitoring from year 2017 to 2019 with 5-min resolution including temperature, relative humidity, and solar radiation. Two predictive models were applied, and the first (Model 1) is to apply the predictive techniques to predict the urban microclimate in the real-time sequence, and then extract the characteristics of urban microclimate, while the second (Model 2) is to directly extract the characteristics of the microclimate, and then predict the characteristics of the microclimate. Backpropagation artificial neural network (BP-ANN) and long-short term memory (LSTM) techniques were applied in both models. The results show Model 1 with as the time-series prediction can reach the best (99.92%) of correlation coefficient and 98% of the mean average percentage error (MAPE), for temperature, while 99.66% and 98.18% for relative humidity, respectively, while accuracies in Model 2 decreased to 79% and 88.6% of MAPE for temperature and relative humidity, respectively. The prediction of solar radiation using ANN and LSTM are 51.1% and 57.8% of the correlation coefficient, respectively.

15.
Materials (Basel) ; 15(7)2022 Mar 31.
Article in English | MEDLINE | ID: covidwho-1776280

ABSTRACT

The purpose of fabric masks in the prevention of the spread of COVID-19 often requires that the masks be worn for extended periods without removal. The management of the conditions in the micro-climate inside the masks is important to keep the wearer comfortable and enhance user compliance. In this study, the effect of mask design and fabric type on the micro-climate was investigated using thermocron iButtons to record the temperature and humidity inside the masks. It was found that the mask style, and its effect on the amount of air incorporated in the micro-climate, had a significant influence on the factors that determine the temperature and humidity levels. In the shaped masks, the impact of the mask design on the results was stronger than the effect of fabric type. In the folded masks that fit snugly around the face, the effect of fabric type was significant, and both fibre composition and fabric structure contributed to the differences in the performance of the three fabrics tested. In the case of the masks with an inserted filter, a significant amount of trapped still air in the fabric layers and the increased mask stiffness had the strongest effect on the temperature and humidity inside the masks. Significant differences were also found in the temperatures recorded in the different time segments, highlighting the importance of conducting comfort evaluations over a long enough time to prevent false interpretations. The results of this study emphasize the importance of considering all the components of mask design, namely style, fibre type, and fabric structure, in the development of masks to enhance user compliance.

16.
IOP Conference Series. Earth and Environmental Science ; 986(1):012069, 2022.
Article in English | ProQuest Central | ID: covidwho-1730612

ABSTRACT

Jakarta, the capital city of Indonesia, is the most populated area in Indonesia, with a population of 10.56 million people or around 3.91% of the total Indonesian population. Jakarta has also become an important city in Indonesia as around 80% of Indonesian economic activity is located in this area. No doubt, the urban activity caused the air pollution to infuriate its microclimate, including the urban heat island phenomena. During the Covid-19 pandemic, Indonesia applied the partial lockdown for several areas to decrease virus transmission. Most of the transportation and commercial areas were closed, and most people worked from home. This significant shifting will affect the temperature and urban heat island conditions. Thus, the main objective of this research was to analyse the urban heat island during the early stage of the pandemic in Jakarta. We used Landsat 8 imagery to extract the land surface temperature (LST) and generated the urban heat island (UHI). The correlation was used to determine the relationship between the distribution of covid-19 cases with the UHI distribution. From the four different recording times (May, July, September, and December 2020) of Landsat 8 imagery, the highest UHI, 7.76°C was found in December 2020 (the late first year of the pandemic). The lowest UHI, 4.91°C was found in May 2020 (The early stage of the first year). Furthermore, the UHI hot spot moved from almost evenly in East Jakarta in May 2020, a tiny spot in East Jakarta in July and September 2020, and evenly distributed in Southeast Jakarta in December 2020. In addition, we found that the increase of covid-19 cases had a positive correlation with the UHI in Jakarta, which means the areas with the high UHI value have high new covid-19 cases. These results showed that the area with high activities is very prone to covid-19 transmission.

17.
Applied Sciences ; 12(4):2088, 2022.
Article in English | ProQuest Central | ID: covidwho-1707508

ABSTRACT

Featured ApplicationPersonalized ventilation systems for improving air quality around passengers in confined vehicles, such as airplanes.In the last decade, there has been an increase in ease and affordability of air travel in terms of mobility for people all around the world. Airplane passengers may experience different risks of contracting airborne infectious diseases onboard aircraft, such as influenza or severe acute respiratory syndrome (SARS-CoV-1 and SARS-CoV-2), due to nonuniform airflow patterns inside the airplane cabin or proximity to an infected person. In this paper, a novel approach for reducing the risk of contracting airborne infectious diseases is presented that uses a low-momentum personalized ventilation system with a protective role against airborne pathogens. Numerical simulations, supported by nonintrusive experimental measurements for validation purposes, were used to demonstrate the effectiveness of the proposed system. Simulation and experimental results of the low-momentum personalized ventilation system showed the formation of a microclimate around each passenger with cleaner and fresher air than produced by the general mixing ventilation systems.

18.
Atmosphere ; 13(2):307, 2022.
Article in English | ProQuest Central | ID: covidwho-1699587

ABSTRACT

As cities are extremely vulnerable to the impacts of climate change, they are fundamental in addressing these changes. However, streets, which are external spaces accessed by citizens in daily life, play an important role in improving the urban environment and public health. This study considered Busan in South Korea as a case study to investigate street canyons, including street canyon geometries and tree configurations, of old, present, and new city centers. The influence of morphological factors on the microclimate and outdoor thermal comfort was evaluated using the ENVI-met program for extremely hot weather. Changes in the street width, street orientation, and street canyon aspect ratio had a significantly higher impact on the microclimate and thermal comfort index (p < 0.01). These results indicated that the orientation of the main street should be consistent with the prevailing wind direction of Busan. Further, the shading of adjacent buildings improved the outdoor thermal comfort and reduced the significance of tree configuration in deeper street canyons. In addition, tree height had a more significant impact on street environment than other tree configuration factors, especially when the tree height increased from 9 m to 12 m. We recommended that the thermal comfort level can be improved by dynamically adjusting the relationship between the planting distance and tree height in streets having shallow street canyons.

19.
26th Summer School Francesco Turco, 2021 ; 2021.
Article in English | Scopus | ID: covidwho-1696211

ABSTRACT

In the last years, in industry, the adoption of effective microclimate strategies for the improvement of the indoor air quality (IAQ) has been considered an important topic for its effects on the workers' health and safety, but it is recently more relevant than ever in the light of the current coronavirus pandemic. The ongoing coronavirus pandemic is moving the scientific community's attention to the study of new microclimate strategies to reduce the transmission of respiratory viruses within industrial settings. Experimental studies showed that increased ventilation and controlled relative humidity levels influence the buoyancy of the expiratory clouds ejected during human respiratory. The result is a reduced contamination range of the suspended droplets containing the respiratory viruses. The existing literature outlines eight Indoor Environmental Quality (IEQ) factors impacting occupants' health and well-being. Among these, IAQ and thermal comfort rise as the most influential ones. The Italian National Institute of Health recently defined a set of strategic implementation measures to improve the IAQ in industrial environments and, ultimately, contain the transmission of the SARS-CoV-2. Moreover, the World Health Organization recommends an increase in the ventilation rate of industrial environments through natural aeration or artificial ventilation. However, these microclimatic variations may cause thermal stress, discomfort and other adverse effects on workers' health and safety. As the literature lacks studies reviewing the effects of these microclimatic strategies, this paper aims to investigate their impact on the well-being and productivity of industrial workers. At the same time, this work is also of interest to industries as it analyses the technologies adopted in the industry to improve IEQ. The findings of this paper describe the critical contents of mid-long term strategies for reducing the transmission of respiratory infections, as the common seasonal flu and the recent coronavirus disease 2019 (COVID-19). © 2021, AIDI - Italian Association of Industrial Operations Professors. All rights reserved.

20.
Sustainability ; 14(3):1321, 2022.
Article in English | ProQuest Central | ID: covidwho-1686989

ABSTRACT

The vast Amazonian biome still poses challenges for botanists seeking to know and recognize its plant diversity. Brazilian northern cities are expanding fast, without considering the regional biodiversity, and urban plantings of almost exclusively exotic species are taking place. It is paramount that the correct identity of such trees is ascertained before procurement of the seeds and young plants, as the use of popular names may lead to importation of plant material from elsewhere, with potential introduction of invasive species. The abundant local diversity also leads to the need to score the most suitable species within a given region. Following the preparation of authoritatively named floristic lists in Southeastern Pará state, we proceeded to score and rank the most suitable trees for urban planning using different characteristics such as size, ornamental value, ecologic role, resilience and known methods of propagation. From an initial 375 species list, 263 species were ranked according to their suitability for street and urban area plantings and visualized using a Venn diagram. A final list with the 49 of the highest-ranking species was further analysed regarding their pollination and phenology period and two types of dissimilarity analyses were provided to aid practitioners in matching and choosing groups of species. Different local vegetation types mean that similar floristic lists must be used to extract cohorts of suitable plants to increase the urban richness in the eight Brazilian states that are included in the Amazonian biome.

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