Search Results (32)

In the severely cold regions of northern China, large-scale clean heating retrofits in rural areas face critical problems, including substandard indoor thermal environments, excessive energy consumption, and prohibitive operating costs. To address these challenges, this study focuses on rural residences in Hohhot as the research subject. Field measurements were conducted throughout the heating season in a typical rural house in Hohhot, a representative city with severe cold weather, to collect indoor/outdoor thermal parameters and real-time operational data of an air-source heat pump (ASHP). A dynamic simulation platform was established using TRNSYS 18. The optimization scheme integrates passive envelope retrofitting (ground insulation improvement and energy-efficient windows) with the active optimized control of the ASHP system. Indoor thermal comfort was evaluated using the Predicted Mean Vote (PMV) index. The results show that the ASHP exhibits excellent heating effectiveness and economic viability, making it the preferred technology for rural residences in Hohhot and similar regions. After implementing the active–passive scheme, the proportion of time with comfortable indoor conditions in rural houses surges from 34.1% to 84.1%, while during the severe cold period, this proportion increases from 16.97% to 61%. The indoor thermal comfort index shifts from its previous state to the baseline comfort range of −1.0 to 0. The total heating energy consumption decreased from 18,646 kWh to 15,861 kWh, and the seasonal operating cost dropped from 3207 to 2579.3 RMB, achieving an overall reduction of 19.6% in both energy and costs. The proposed active–passive synergistic optimization scheme simultaneously improves the indoor thermal environment and reduces heating energy consumption, overcoming the limitations of single-measure retrofits. This study fills the research gap on the quantitative evaluation of active–passive synergy for rural clean heating in severely cold regions, providing a theoretical basis and technical support for clean heating retrofits in Hohhot and Inner Mongolia, facilitating low-carbon and efficient rural clean heating in northern China. Full article

In China, communities are the primary living environments for older adults, where the neighborhood environment is closely linked to their mental well-being (MW). Old urban residential communities commonly encounter problems including poor housing quality, inadequate public resources, and substandard living conditions. The association between such neighborhood environments and the MW of older adults is particularly worthy of examination. Therefore, based on empirical survey data from Nanjing, China, and from a subjective perception perspective, this study explores how the perceived neighborhood environment in old urban residential communities correlates with older adults’ MW. The findings indicate that both the perceived built environment (BE) and social environment (SE) are correlated with the MW of older adults. The BE has a stronger correlation with MW than the SE, which mediates the correlation between the BE and MW. The correlation between the neighborhood environment and MW is moderated by factors including age, residence type, and average monthly income. Among the component factors of neighborhood environment in old urban residential communities, housing quality, shopping convenience, neighborhood interaction, and community services show significant positive correlations with the MW of older adults. These findings provide valuable implications for the age-friendly renewal of old urban residential communities, the development of age-friendly communities, and the improvement in the subjective well-being of older adults in such communities. Full article

Background/Objectives: Pediatric asthma remains a pressing public health issue, especially among low-income, minority children living in subsidized housing. Methods: This study employed a community-based participatory research approach to explore barriers and potential solutions for improving asthma management in this vulnerable population. Semi-structured interviews were conducted with 22 caregivers of children with asthma and 8 community health workers in Washington, DC—a city marked by high childhood asthma rates and concentrated subsidized housing. Results: Thematic analysis identified six core findings: (1) families frequently encountered multiple home environmental asthma triggers, including pests, mold, secondhand smoke, leaks, poor ventilation, and aging infrastructure; (2) healthy housing services were under implemented, often due to unresponsive landlords, inadequate inspections, and poor maintenance; (3) existing services such as pest control, mold remediation, and smoke-free policies were ineffectively implemented; (4) challenges to service delivery included difficulties faced by landlords and structural barriers tied to geography, race, and socioeconomic status; (5) substandard housing conditions contributed to residents’ feelings of powerlessness, frustration, and distrust, with some taking legal action to address persistent hazards; and (6) participants recommended stronger housing code enforcement, sustained funding for home-based environmental interventions, housing-health liaisons, strengthened landlord accountability, support for landlords to facilitate repairs, centering families’ voices, and advocacy. Conclusions: This study underscores the persistent challenges caregivers face in managing asthma triggers in subsidized housing. The findings highlight the critical need for improved housing conditions, greater landlord and housing authority accountability, and policy reforms to ensure consistent, equitable, and sustainable healthy housing services that reduce pediatric asthma disparities. Full article

Informal settlements, urban areas with substandard housing conditions and inadequate infrastructure, are increasing in Africa’s sub-Saharan cities, fueled by rapid urbanization, economic challenges, and high housing prices. However, developers often ignore the green building (GB) concept when upgrading housing conditions for these communities. This study aims to investigate GB design strategies specifically for residential structures in Akabahizi to identify and propose practical strategies suitable for informal settlements such as Akabahizi and to develop sustainable housing solutions that enhance environmental quality and meet the needs of residents. Simulation software and combined qualitative and quantitative data collection techniques, including field surveys, interviews, and assessments of existing building conditions, constitute the methodology used in this study. The focus was on the influence of climatic factors, including temperature, precipitation, and wind, on design choices, particularly GB design and current residential buildings in Akabahizi. Based on the survey, 82.5% of residents support the GB concept, 87.4% recognize the importance of GB for community well-being, and 97.1% recognize the benefits of integrating energy-efficient technology for residents’ well-being. Questionnaire findings were considered in decision-making for the design of the new proposed structure to address challenges in the area. Optimized energy efficiency, daylight access, and thermal comfort resulting from courtyard design support GB design incorporating a courtyard as a robust and culturally relevant sustainable design framework tailored for Akabahizi. The courtyard provides green space that promotes social interaction, improves air quality, and delivers natural cooling elements that are essential for residential housing. The proposed new design, with green roof and renewable energy devices, improved material usage, and natural ventilation elements, outperformed the existing one in terms of lower levels of carbon emission for environmental protection. In conclusion, a collaborative effort is needed among various stakeholders, including architects, urban planners, and educational institutions, to promote and implement sustainable building practices. The study suggests that enhancing awareness, offering training opportunities, and empowering local professionals and residents alike can pave the way for improved living conditions and sustainable urban development in Akabahizi and similar informal settlements. Full article

In many disaster-prone regions, lower-income communities face disproportionate impacts due to the prevalence of informal housing. Informal housing, characterized by substandard construction and lack of adherence to building codes, exacerbates vulnerabilities during disasters, leading to widespread destruction and hampered recovery efforts. This study examines the multifaceted causes of informal housing in Puerto Rico using a qualitative content analysis of applicable literature. Seven interdisciplinary factors were derived from 42 relevant manuscripts with identifiable factors linked to informal housing in Puerto Rico: Knowledge, Perception, Government Dynamics, Institutional Support, Enforcement, Culture, and Resources. Despite post-disaster efforts advocating for building back better, systemic challenges perpetuate informal housing practices, reinforcing cycles of vulnerability. This research underscores the need for integrated decision making in pre-disaster preparation and post-disaster reconstruction efforts. This research presents a detailed understanding of the Informal Housing Cycle, demonstrates how interdisciplinary factors are barriers to safe and sustainable housing, and explores the complex relationships between these factors. This study aims to guide policy and practice to reduce future disaster impacts on Puerto Rico housing, thus breaking the cycle of vulnerability, empowering communities, and fostering sustainable resilience in post-disaster reconstruction efforts. Full article

While IPV is often studied as a predictor of housing insecurity, few U.S. studies explore how different forms of housing instability may contribute to intimate partner violence (IPV) risk. Using a mixed-methods approach and a cross-sectional design, this study examined the association between four housing instability domains and IPV among a sample of tenants that had either experienced eviction or were at high risk for eviction. Tenants in Harris and Travis counties (Texas, USA) completed an online survey (n = 1085; March–July 2024). Housing instability was assessed across four domains: homelessness, lease violations, utility hardship, and poor housing quality. IPV was measured using the Hurt, Insult, Threaten, Scream Screener. Covariate-adjusted logistic regression models suggest indicators within the four housing instability domains were associated with IPV risk. Within the homelessness domain, experiences with lifetime homelessness (AOR = 1.92, 95%CI 1.61–2.28), in the past 12 months living in unconventional spaces (AOR = 2.10, 95%CI 1.92–2.29), and moving in with others (AOR = 1.20, 95%CI 1.06–1.36) were associated with IPV. Within the lease violations domain, missed rent payments (AOR = 1.69, 95%CI 1.68–1.71) and non-payment lease violations (AOR = 2.50, 95%CI 2.29–2.73) in the past 12 months were associated with IPV. Utility shutoffs (AOR = 1.62, 95%CI 1.37–1.91) and unsafe housing (AOR = 1.65, 95%CI 1.31–2.09) in the past 12 months were associated with IPV. Homelessness, housing-related economic hardships and substandard living conditions predict an elevated risk of IPV. Full article

Background—Against childhood lead poisoning, removing lead exposure is the main measure, but how to do it effectively has not been fully established. Our objective was to determine the impact of several interventions (education, housing remediation, and relocation) on children’s blood lead levels. Methods—A historical cohort of childhood lead poisoning was drawn in Marseille, France, from 2011 to 2018. A generalized mixed model was developed to study the kinetics of blood lead levels. Results—We included 151 children, with 56% living in legal substandard housing and others living in slums. Medical follow-up (median: 612 days) included 492 blood samples. In legal substandard housing, blood lead level decrease was significantly associated with every intervention. In slums, blood lead level decrease was significantly associated with housing relocation and education, although to a lesser extent. Conclusions—Every intervention contributed to reducing blood lead levels in substandard housing. Educational intervention is rapidly implemented. Housing remediation follows a long-lasting but effective legal procedure. Some families get housing relocation, depending on their financial resources or whether they are eligible for social housing. In slums, access to legal housing is the most effective against environmental exposure and education has a wider impact on health literacy. Full article

Occupational exposures in the agricultural industry globally have been associated with heightened risk for several diseases. Reports written in South Africa in the last decade have raised awareness of the harsh occupational conditions and human rights abuses suffered by farmworker communities in the wine industry. Despite receiving “fair trade” labels upon reentry into the global market in the 1990s, the working conditions on wine farms in South Africa have remained unchanged and exploitative for centuries. Farmworkers remain dependent on substandard farm housing, have insecure land tenure rights, are exposed to toxic pesticides, are denied access to benefits and unionization, and endure long working hours in harsh environmental conditions with low pay. These occupational conditions are linked to interacting disease clusters: metabolic syndrome, problematic drinking, and communicable diseases including tuberculosis, HIV, and COVID-19. This milieu of interacting diseases with deleterious outcomes is an under-considered occupational syndemic that will likely worsen given both the lasting impacts of COVID-19 and more recent shifts in global public health funding. Full article

Background: Health and safety are critical pillars of functional higher education systems. In South African universities, recurring incidents have highlighted vulnerabilities, particularly concerning gender-based violence (GBV), student housing conditions, infrastructure safety, and campus crime. Methods: This study employed a document-based qualitative approach, analysing public records, police reports, campus press statements, and national media coverage of incidents reported at South African universities (2015 to 2024). The study is guided by public health and victimology frameworks to examine systemic risk factors and institutional responses. Results: The findings indicate increased reports of GBV, multiple student deaths related to substandard residence conditions, infrastructure-related fatalities, and a lack of consistent institutional safety policies. A pattern of poor infrastructure management, weak inter-institutional communication, and failure to implement recommendations following major incidents emerged across the dataset. Conclusions: South African universities remain exposed to preventable student risks. Targeted interventions, mandatory safety audits, emergency response units, and accountability structures are urgently needed to address systemic failings and protect student welfare. The study supports Sustainable Development Goals 3 and 4 by linking campus safety to student well-being and equitable access to higher education. Full article

Approximately 3% of home-owners in Flanders (Belgium) are “locked-in”, residing in substandard dwellings with limited financial means for improvement. Under the European Urban Innovative Actions project ICCARus, 84 dwellings of locked-in home-owners in Ghent (Belgium) underwent renovations with an average budget of EUR 29,000. Their impact on housing quality, energy performance, indoor environmental quality (IEQ), and user satisfaction was assessed. The housing quality was evaluated using the Flemish Housing Code, and energy performance was calculated. A monitoring campaign in selected dwellings evaluated the IEQ. Interviews documented home-owners’ satisfaction. The results revealed a significant enhancement in housing quality, with post-renovation compliance reaching 83%. Energy performance notably improved, from a pre-renovation F-label prevalence (31% of the cases) to a post-renovation majority achieving a C-label (55%). The average indoor temperature in all rooms increased after renovation. A moderate correlation between enhancement in the living room and bathroom temperature and budget for energy performance measures was noted. The CO₂ concentration in the majority of the homes remained unchanged. A total of 61% of the participants reported increased satisfaction with their dwelling post-renovation, with more pronounced improvement in winter. This enhanced satisfaction was correlated with improved energy performance. Full article

Background: Knowledge of how different social groups in South Africa are affected by air quality is important for informing air quality regulations and determining the integrated social–environmental approach to adopt. This systematic review evaluates the impact of air pollution on these groups, investigates socio-economic factors that increase exposure, and assesses mitigation measures. Methods: The review followed the PRISMA guidelines and analyzed quantitative studies conducted in South Africa, which were published between 2014 and 2024. The studies’ sources included databases such as Google Scholar, PubMed, and Scopus. Data from 47 eligible studies were analyzed using descriptive statistics. Results: Results show that women, children, and low-income communities tend to bear the brunt of poor air quality. Children are the most affected by poor air quality, with significant respiratory issues. Pregnant women are vulnerable to adverse birth outcomes. The results indicate that of the 47 studies reviewed, 51% focused on the effects of air pollution on children, whilst fewer studies (26%) focused on women. This may point to a gap in research on the specific impacts of air pollution on women. Low-income communities face increased exposure due to proximity to pollutant sources and substandard housing. The results further indicated that of the health impacts experienced by vulnerable populations, general health issues (96%) and respiratory health issues (89%) are the most prominent health impacts. Conclusions: The study underscores the need for stricter air quality regulations, public education, and an integrated social–environmental approach to mitigate exposure in vulnerable populations. Full article

This paper explores the feasibility of floating urban development in Italy, given its extensive coastline and inland hydrographic network. The key drivers for floating urban development, as an adaptive approach in low-lying waterfront areas, include the increasing threats posed by rising sea levels and flooding and the shortage of land for urban expansion. However, as not all waterfront areas are suitable for floating urban development, a geographical analysis based on a thorough evaluation of multiple factors, including urban–economic parameters and climate-related variables, led to the identification of a specific area of the Lazio coast, the river Tiber Delta. A comprehensive urban mapping process provided a multifaceted geo-referenced information layer, including several climatic, urban, anthropic, and environmental parameters. Within the GIS environment, it is possible to extract and perform statistical analyses crucial for assessing the impact of flood and sea-level rise hazards, particularly regarding buildings and land cover. This process provides a robust framework for understanding the spatial dimensions of flood and sea-level rise impacts and supporting informed design-making. A research-by-design phase follows the simulation research and mapping process. Several design scenarios are developed aimed at regenerating this vulnerable area. These scenarios seek to transform its susceptibility to flooding into a resilient, adaptive, urban identity, offering climate-resilient housing solutions for a population currently residing in unauthorized, substandard housing within high flood-risk zones. This paper proposes a comprehensive analytical methodology for supporting the design process of floating urban development, given the highly determinant role of site-specificity in such a challenging and new urban development approach. Full article

An increasing body of literature has investigated the implications of housing quality on health, confirming the negative consequences of poor housing quality on physical and mental health. Despite this increased focus on the salutogenic impacts of housing, the relationship between housing quality and cognitive health remains understudied. This study examined how the housing quality in urban informal settlements, where living conditions are often substandard, affects women’s cognitive functioning, with a specific focus on executive function (EF) skills. EF is a decision-making system that enables us to make decisions using working memory and attentional control. This study addressed two key questions: (1) Is housing quality associated with EF skills? (2) Does perceived housing stress experienced by women mediate the housing–EF relationship? A standardized observer-based tool assessed housing quality, psychometric instruments measured EF skills, and a 12-item questionnaire evaluated perceived housing stress. Results indicated that better housing quality is positively associated with higher EF skills, with housing stress acting as a mediating factor in this relationship. These findings have important implications for both health and housing policies. Investments in improving housing conditions can yield cognitive health benefits for women, and addressing stress-inducing housing factors could further enhance cognitive outcomes. Full article

Leptospirosis is a zoonosis with global public health impact, particularly in poor socio-economic settings in tropical regions. Transmitted through urine-contaminated water or soil from rodents, dogs, and livestock, leptospirosis causes over a million clinical cases annually. Risk factors include outdoor activities, livestock production, and substandard housing that foster high densities of animal reservoirs. This One Health study in southern Chile examined Leptospira serological evidence of exposure in people from urban slums, semi-rural settings, and farm settings, using the Extreme Gradient Boosting algorithm to identify key influencing factors. In urban slums, age, shrub terrain, distance to Leptospira-positive households, and neighborhood housing density were contributing factors. Human exposure in semi-rural communities was linked to environmental factors (trees, shrubs, and lower vegetation terrain) and animal variables (Leptospira-positive dogs and rodents and proximity to Leptospira-positive households). On farms, dog counts, animal Leptospira prevalence, and proximity to Leptospira-contaminated water samples were significant drivers. The study underscores that disease dynamics vary across landscapes, with distinct drivers in each community setting. This case study demonstrates how the integration of machine learning with comprehensive cross-sectional epidemiological and geospatial data provides valuable insights into leptospirosis eco-epidemiology. These insights are crucial for informing targeted public health strategies and generating hypotheses for future research. Full article