Search Results (130)

Limited research has characterized the occurrence of organophosphate esters (OPEs) in indoor microenvironment air. To address this gap, ten OPE congeners were measured in air samples collected from 46 homes, 12 offices, 6 student dormitories, and 60 private cars in Guangzhou, China. Among the four microenvironments, private vehicles exhibited the highest total OPE concentrations (ΣOPEs), with an average of 264.89 ng/m³—statistically significantly higher than the other three environments (p < 0.05). This finding underscores the need for increased attention to OPE environmental fate in vehicles and associated human exposure risks. Distinct compositional profiles of OPEs were observed across microenvironments. In homes, offices, and student dormitories, tris(2-chloroethyl) phosphate (TCEP) and tris(2-chloropropyl) phosphate (TCPP) dominated the OPE mixture, accounting for 56% and 34% of ΣOPEs, respectively. By contrast, private cars were characterized by elevated levels of TCPP (68% of ΣOPEs) and tris(1,3-dichloro-2-propyl) phosphate (TDCP, 12%), reflecting source-specific emission patterns related to automotive materials. Significant correlations existed in most of the OPEs in the private cars, indicating that there are many potential sources of OPEs in private cars, and one source may release multiple OPEs. Human inhalation exposure to OPEs was estimated based on measured air concentrations. Daily respiratory exposure doses ranged from 9.1 to 30.85 ng/kg/d across different populations, with all values falling below established thresholds for non-carcinogenic and carcinogenic risks. These results indicate that current indoor air OPE levels in the studied microenvironments do not pose significant health hazards via inhalation pathways under typical exposure scenarios. Full article

This study investigates the critical role of indoor environmental quality (IEQ) adaptations in influencing human physiological responses within commercial building settings. By integrating environmental engineering and human physiology, this research offers empirical insights into the relationship between IEQ modifications and occupant well-being, particularly in the context of energy performance and efficiency. This study examines correlations between human physiological responses and key IEQ components, including indoor air quality (IAQ), thermal comfort, lighting, and acoustics, using data collected from two office areas with 14 participants. Sensors tracked environmental parameters, while wearable devices monitored physiological responses. Cross-correlation analysis revealed significant relationships between physiological indicators and environmental factors, with indoor temperature, PM_2.5, and relative humidity showing the strongest impacts on electrodermal activity, skin temperature, and stress levels, respectively (p < 0.05). Furthermore, supervised machine learning techniques were employed to develop predictive models that evaluate IAQ and thermal comfort at both personal and general levels. Individual models achieved 84.76% accuracy for IAQ evaluation and 70.5% for thermal comfort prediction, outperforming the general model (69.7% and 64.3%, respectively). Males showed greater overall sensitivity to IEQ indicators, while females demonstrated higher sensitivity specifically to air quality and thermal comfort conditions. The findings underscore the potential of physiological signals to predict environmental satisfaction, providing a foundation for designing energy-efficient buildings that prioritize occupant health and comfort. This research bridges a critical gap in the literature by offering data-driven approaches to align sustainable building practices with human-centric needs. Future studies should expand participant diversity and explore broader demographics to enhance the robustness and applicability of predictive models. Full article

In an air-conditioned multinational graduate students’ office in Japan during the winter season, we examined indoor environmental conditions, occupants’ perceptions, and their acceptance levels over five consecutive days. Indoor air quality (IAQ) acceptance peaked on the third day, coinciding with the most favourable thermal sensation vote, which was “neutral” at a geometric mean indoor temperature of 25.1 °C. Aural comfort received the lowest acceptance due to ongoing construction work, but did not significantly impact overall IEQ acceptance, thus suggesting that unacceptable aspects of indoor environmental quality (IEQ) can be offset by acceptable aspects. IAQ and thermal comfort compensated for its effects, offering insights into occupants’ environmental tolerance. IAQ sensation votes and visual comfort votes exhibit a strong relationship with overall comfort, as indicated by their respective R² values. However, variations in overall comfort are primarily explained by IAQ, which has the highest R² value of 0.50, suggesting that IAQ accounts for 50% of the changes in overall occupant comfort. Non-Japanese participants had lower IEQ acceptance and a significantly higher number of complaints than Japanese participants more so in visual comfort where acceptable luminance levels were higher in Japan than other participants’ countries of origin. Thermal comfort was mutually highly accepted by both groups. Nose and eye irritation were significantly experienced by the international participants due to low RH levels but experiencing loss of concentration and lethargy was comparable in both groups (p > 0.05, t-test). We recommend global coherence in indoor environmental quality standards as is the case with drinking water standards for public health protection and seamless transitions in new indoor environments. Full article

Introduction: This study aimed to develop a service model for daycare centers for the elderly through community participation using participatory action research methods. The objectives were threefold: (1) to investigate the current situation of the elderly in the community and their needs for daycare center services, (2) to develop a daycare center for the elderly with active community involvement, and (3) to evaluate the effectiveness of the service delivery at the daycare center for the elderly. Methods: The study was conducted in Ban Kho Subdistrict, Phon Sawan District, Nakhon Phanom Province. Research participants included 210 elderly individuals surveyed to assess their situation, and 15 key informants, including elderly club leaders, subdistrict health promotion hospital staff, volunteers, subdistrict administrative organization officers, and village health volunteers, were specifically selected for in-depth insights. The research process was structured into three phases: Phase 1 focused on studying the situation of the elderly in the community and their service needs; Phase 2 was dedicated to developing the daycare center with community participation; and Phase 3 involved evaluating the service delivery of the daycare center. Results: The results indicated that the development process of the daycare center service model for the elderly, through community participation, involved four key mechanisms: elderly clubs, subdistrict health promotion hospitals, volunteer teachers or technicians, and village volunteers. Additionally, the supporting mechanisms included academic institutions, hospitals, temples, village heads, the Non-Formal Education Center, foundations, and the subdistrict administrative organization. The comprehensive service model encompassed five components: health, social, psychological, economic, and environmental aspects. Conclusions: The study successfully developed a daycare center service model for the elderly through community participation, which can be expanded and adapted to other semi-urban and semi-rural contexts. This model demonstrates the importance of community involvement in providing holistic care for the elderly, addressing various aspects of their well-being. Full article

Traditional methods for managing free-roaming cats in Australia primarily depend on legislation and enforcement to achieve compliance. State laws and local regulations mandate confinement, sterilization, registration, and identification and limit the number of cats kept, with penalties for breaches. However, these strategies fail to address underlying issues like financial constraints in low-income areas and the prevalence of semi-owned cats. Containment mandates often result in increased complaints, shelter intake, and euthanasia, without effectively reducing cat-related problems. Research shows that these approaches are expensive, difficult to enforce, and place a disproportionate burden on disadvantaged communities. Moreover, they negatively affect the mental health of shelter staff and animal management officers, who are frequently exposed to euthanasia and ongoing challenges. An alternative “One Welfare” framework, which recognizes the interconnectedness of animal, human, and environmental welfare, has proven more effective. Programs that provide support and resources, particularly for cat sterilization and microchipping, while fostering the human–animal bond improve outcomes for both cats and caregivers. Shifting from punitive measures to collaborative, community-driven strategies is crucial for managing free-roaming cats in a way that benefits animals, people, and the broader community, while protecting wildlife. Full article

Indoor air quality is paramount for the health and well-being of individuals, especially in enclosed spaces like office buildings, schools, hospitals, and homes where people spend a significant amount of time. Ensuring good indoor air quality is not only essential for reducing symptoms such as headaches, eye and respiratory irritation, fatigue, and difficulty in concentration, but it is also a key component of sustainable building practices aimed at promoting long-term health and environmental balance. This study aims to explore the impact of the microclimate and fungal microbiota on the health and cognitive performance of occupants in a university classroom, which is part of a cultural heritage building. The research delves into various microclimatic parameters, including temperature, relative humidity, CO₂, volatile organic compounds, O₂, and particulate matters (PM_2.5 and PM₁₀), to understand their influence on the development of microbiota and the manifestation of symptoms associated with Sick Building Syndrome. Over the course of a year-long investigation, microbiological samples were collected, revealing the presence of 19 fungal species, with Cladosporium, Alternaria, and Aureobasidium being the most prevalent genera. These species were found to thrive in an environment characterized by inadequate ventilation, posing potential health risks to occupants, such as allergic reactions and respiratory infections. Microclimatic parameter values such as mean temperature of 22.9 °C and mean relative humidity of 38.5% indicated moderate conditions for fungal proliferation, but occasional high levels of PM_2.5 and CO₂ indicated periods of poor indoor air quality, negatively influencing the comfort and health of the occupants. The questionnaires completed by 190 students showed that 51.5% reported headaches, 44.2% frequent sneezing, and 43.7% severe fatigue, linking these symptoms to increased levels of CO₂ and PM_2.5. The novelty of the study lies in the integrated approach to indoor air quality assessment in a heritage educational building, highlighting the need for improved ventilation and air management to enhance health and cognitive performance, while emphasizing sustainable indoor environment management that balances occupant well-being with the preservation of cultural heritage. Full article

Due to cyanobacterial toxin (cyanotoxin) contamination issues in 2018, the city of Salem, Oregon, issued a 33-day do-not-drink advisory for vulnerable people among the 200,000 residents. After the incident, the state of Oregon put in place drinking water rules to require the routine testing of raw water, as well as finished water, in cases where the raw water cyanotoxin concentrations exceeded trigger values. The United States Environmental Protection Agency (EPA) total microcystins drinking water health advisory level (HAL) for small children is 0.3 µg/L. This is equivalent to the minimum reporting level (MRL) for EPA Method 546. Consequently, there was no ability to provide early warnings via toxin testing for total microcystins using the EPA method. In this study, we performed a comparison of the precision and accuracy of the enzyme-linked immunosorbent assay (ELISA) described in the EPA method to a more sensitive assay, the Streptavidin-enhanced Sensitivity (SAES) assay. Based on these precision and accuracy studies and quantitation limit determinations and confirmations, the EPA Office of Ground Water and Drinking Water (OGWDW) has concluded the SAES kit meets the requirements of EPA Method 546. With an MRL that is one-third of the original concentration, the new kit provides a small but critical window for identifying early warnings. Challenges remain with providing early warnings due to the variability in bloom dynamics; however, the new MRL allowed Oregon to lower the trigger level for susceptible systems, thereby providing an additional early warning. Full article

TCIPP (tris(1,3-dichloro-2-propyl) phosphate) and TCEP (tris(2-chloroethyl) phosphate) are organophosphate ester flame retardants found in various consumer products, posing significant health and environmental risks through inhalation, ingestion, and dermal exposure. Research reveals these compounds cause oxidative stress, inflammation, endocrine disruption, genotoxicity, neurotoxicity, and potentially hepatotoxicity, nephrotoxicity, cardiotoxicity, developmental, reproductive, and immunotoxicity. This review summarizes the current knowledge on the toxicological mechanisms of TCIPP and TCEP and presents the latest data on their toxicological effects obtained in vitro and in vivo, using omic systems, and on the basis of computational modelling. It also elaborates on the scope of further toxicities and highlights the necessity of ongoing mechanistic research, integration of new technologies, and successful transfer of the acquired knowledge into risk evaluation, policies and regulations, and the creation of safer products. Since flame retardants are already present in homes, schools, offices, and daycare centres, efforts to scale back the exposure to these chemicals, most especially the hazardous ones, must be made to protect human health and the environment. Therefore, effective and timely prevention, based upon a deep knowledge of the entire toxicological profile of these substances, is the only way to face this difficult toxicological issue and provide for a healthy and safe future. Full article

Prefabricated timber buildings offer a low-carbon approach that can help reduce the environmental impact of the building and construction sectors. However, construction materials such as manufactured timber products can emit a range volatile organic compounds (VOCs) that are potentially hazardous to human health. We evaluated 24 years (2000–2024) of peer-reviewed publications of VOCs within prefabricated timber buildings. Studies detected hazardous air pollutants such as formaldehyde, benzene, toluene, and acetaldehyde (indoor concentration ranges of 3.4–94.9 µg/m³, 1.2–19 µg/m³, 0.97–28 µg/m³, and 0.75–352 µg/m³, respectively), with benzene concentrations potentially exceeding World Health Organization indoor air quality guidelines for long/short term exposure. Most studies also detected terpenes (range of 1.8–232 µg/m³). The highest concentrations of formaldehyde and terpenes were in a prefabricated house, and the highest of benzene and toluene were in a prefabricated office building. Paradoxically, the features of prefabricated buildings that make them attractive for sustainability, such as incorporation of manufactured timber products, increased building air tightness, and rapid construction times, make them more prone to indoor air quality problems. Source reduction strategies, such as the use of low-VOC materials and emission barriers, were found to substantially reduce levels of certain indoor pollutants, including formaldehyde. Increasing building ventilation rate during occupancy is also an effective strategy for reducing indoor VOC concentrations, although with the repercussion of increased energy use. Overall, the review revealed a wide range of indoor VOC concentrations, with formaldehyde levels approaching and benzene concentrations potentially exceeding WHO indoor air quality guidelines. The paucity of evidence on indoor air quality in prefabricated timber buildings is notable given the growth in the sector, and points to the need for further evaluation to assess potential health impacts. Full article

In recent years, our time spent indoors has risen to around 90% and to maintain an occupant’s comfort and well-being, Indoor Environmental Quality (IEQ) is monitored. Concerned with inhabitant’s satisfaction and health, the adoption of smart solutions for IEQ monitoring and improvement has expanded. The solution this study explores is an occupant-centric approach involving the implementation of an Internet of Things (IoT) IEQ sensing network in a prominent office skyscraper in Hong Kong. Over the course of 15 months, real-time IEQ data were collected from 12 locations within the building. The data were collected at 1-min time intervals and consisted of readings of indoor air temperature, radiant temperature, relative humidity, air velocity, carbon dioxide (CO₂), particulate matter (PM₁₀ and PM_2.5), horizontal illuminance levels, and sound pressure levels, which served as the basis of the assessment made about the qualities of thermal comfort, indoor air quality (IAQ), aural comfort, and visual comfort. Compared to traditional periodic surveys, this IoT-based sensing network captured instantaneous environmental variations, providing valuable insights into the indoor environment’s spatial characterization and temporal dynamics. This smart solution also assisted facility management in terms of identifying sources of discomfort and developing effective mitigation strategies accordingly. This study presents an occupant-centric approach to improve occupant comfort and energy efficiency within office buildings. By customizing the built environment to enhance occupants’ well-being, comfort, and productivity, an emphasis is placed on a more personalized and occupant-focused design strategy. This approach integrates technical design with human experience, highlighting the importance of real-time physical and subjective surveys for achieving optimal results. Full article

Air pollution is recognized by the World Health Organization as the major environmental threat; therefore, air quality is constantly being monitored by monitoring stations. However, the most common atmospheric pollutants being monitored do not include pollen. Among the reasons for the lack of pollen control is that there are different types and sizes of pollen. The largest particles commonly being monitored by air monitoring stations have a maximum aerodynamic diameter of 10 microns, while the aerodynamic diameter of most pollen grains is known to range from 10 to 100 microns. For this reason, most pollen is not being detected by air monitoring stations. For the patents found in a literature review, monitoring pollen concentration in the air requires the discrimination of pollen grains from particulate matter of a similar size, as well as the identification of the type of pollen grains detected, since different pollen types may produce different effects, such as allergic reactions, asthma, and lung cancer, in exposed people. In this work, 15 patent documents regarding pollen monitoring were identified and reviewed using three search engines: Google Patents, WIPO’s PatentScope, and the United States Patent and Trademark Office (USPTO) database. The extracted data from the patents included whether they differentiate pollen type, pollen size, and sensor type and whether they provide real-time data. The results show that 93.33% of the patents identify pollen type, while 80% of the patents identify pollen size. Most of the patents use light-scattering and image sensors and use image processing techniques to analyze particles. Furthermore, 40% of the patents were found to implement artificial intelligence. Further, it was found that only nine patents provide real-time data, which is an important feature of an air monitoring system. Full article

Background/Objectives: Firefighters, tactical police officers, and warriors often engage in periodic, intermittent, high-intensity physical work in austere environmental conditions and have a heightened risk of premature mortality. In addition, tough decision-making challenges, routine sleep deprivation, and trauma exacerbate this risk. Therefore, identifying strategies to bolster these personnel’s health and occupational performance is critical. Creatine monohydrate (CrM) supplementation may offer several benefits to firefighters and tactical athletes (e.g., police, security, and soldiers) due to its efficacy regarding physical performance, muscle, cardiovascular health, mental health, and cognitive performance. Methods: We conducted a narrative review of the literature with a focus on the benefits and application of creatine monohydrate among firefighters. Results: Recent evidence demonstrates that CrM can improve anaerobic exercise capacity and muscular fitness performance outcomes and aid in thermoregulation, decision-making, sleep, recovery from traumatic brain injuries (TBIs), and mental health. Emerging evidence also suggests that CrM may confer an antioxidant/anti-inflammatory effect, which may be particularly important for firefighters and those performing tactical occupations exposed to oxidative and physiological stress, which can elicit systemic inflammation and increase the risk of chronic diseases. Conclusions: This narrative review highlights the potential applications of CrM for related tactical occupations, with a particular focus on firefighters, and calls for further research into these populations. Full article

The dietary guidelines of Slovenia, ‘12 Steps to Healthy Eating’, were first published in 2000 and revised in 2011. The ‘Food Guide Pyramid’ was initially published in 2000 and subsequently revised in 2015. ‘The Healthy Plate’ was first introduced in 2007. In February 2023, the Slovenian Strategic Council for Nutrition proposed new Food-Based Dietary Guidelines (FBDGs) that integrate both health and environmental considerations. In September 2023, the creation of new FBDGs was included in the Action Plan for implementing the Resolution on the National Program on Nutrition and Physical Activity for Health 2015–2025. In October 2023, the Ministry of Health of Slovenia appointed the core working group of 10 multidisciplinary experts from fields such as nutrition, food science medicine, public health, environment, pharmacy, and agriculture led by Prof. Dr. Nataša Fidler Mis, who drafted the guidelines. In February 2024, the World Health Organization Regional Office for Europe organized a virtual international workshop to assist Slovenia in developing food-based dietary guidelines. In May 2024, an international expert meeting was organized by the Ministry of Health of Slovenia, the Ministry of the Environment, Climate, and Energy, and the National Institute of Public Health of Slovenia to present the first scientific draft of the SLO FBDG for external international peer review. The meeting included lectures from world-leading experts to present healthy diets from sustainable food systems, integrate climate and sustainability aspects into the new SLO FBDG, discuss the findings with the Slovenian core working group, extended working group of the SLO FBDG, and invited experts. The final version of SLO FBDG is expected to be released by the end of 2024. Full article

Background: In the aftermath of the Coronavirus pandemic and the resulting lockdown and social distancing policies, a new form of work, already existing in the past, has been further enlarged. Teleworking is “full- or part-time electronic work, on-line or off-line, performed at home by self-employed or office workers” and today represents an important lever for companies, including for sustainability, allowing employees to work flexibly, efficiently and remotely. The relationship between telework and sustainability in economic, social, and environmental aspects is also being questioned. The aim of this systematic review is to investigate the effects this has had on workers’ mental health. Methods: PRISMA guidelines were followed. The research was performed on Pubmed and Scopus without restrictions on study type and time limits. The methodological quality of the studies included was assessed using AMSTAR-2, INSA and NOS scales. A meta-analysis of the main adverse effects found in observational studies was also carried out. Results: A total of 38 articles were included in the systematic review. A large proportion of the studies examined showed a correlation between teleworking and worsening mental health. The meta-analysis showed increased levels of mental ill-health (38.8%), stress (28.4%), isolation (6.3%), anxiety (23%), depression (22.6%), work–family conflicts (19.5%), poor sleep quality (56.4%), fatigue (16.1%) and irritability (39.6%). Conclusions: Although most of the works analyzed show a deterioration in the mental health of workers, positive effects were noted in some. There is the need for more studies to optimally investigate the cause–effect relationship between teleworking and mental health deterioration. Full article

This study addresses the impact of urban parks on the self-rated health of office workers under 40, a demographic experiencing significant increases in depressive symptoms during the pandemic. This study in Baise City, China, aims to fill this gap by exploring the relationships between landscape quality, leisure time spent in parks, place attachment, and self-rated health among 411 office workers aged 18 to 40. Structural equation modeling was used to assess these relationships, and multigroup analysis (MGA) in SmartPLS evaluated differences between subgroups. The findings reveal a strong link between urban park landscape quality and leisure time spent in parks, place attachment, and self-rated health. Although the old-fashioned park showed lower overall performance in the study variables compared to the modern park, it had a stronger relationship between landscape quality and place attachment. Leisure time spent in parks did not directly impact self-rated health but was mediated by place attachment. MGA results indicated that while leisure time in parks positively affected self-rated health for single participants, it had a negative effect for married participants. These results underscore the importance of tailoring urban park design and management to accommodate the varying needs of different demographics. This research provides new insights into enhancing office workers’ self-rated health through environmental design and supports the objectives of the Healthy China strategy and Sustainable Development Goal 11. Full article