Persistent organic pollutants (POPs) usually originate from human activities and have been released into the environment for several decades. They are highly resistant to natural decomposition and can accumulate in an organism’s tissues and in all environmental components. Due to their unique characteristics, they have an ability to bio-magnify and bio-accumulate in animals, through the food chain and via inhalation, severely endangering the health of people. As reported, the exposure of humans to POPs causes various health problems such as cancers, diabetes, birth defects, endocrine disruption, cardiovascular diseases and dysfunctional immune and reproductive systems. The residents of South Korea are likely to face a high risk of diseases because of the existence of POPs in the environment. For instance, South Korea’s atmosphere has been reported as a hotspot for POP pollution. Besides, South Koreans’ high amount of seafood consumption is considered another source of POPs. Therefore, this article reviews the status of POP contamination in food and the health impact of POPs in South Korea. Based on the findings, the most-reported diseases were obesity and diabetes, which positively correlated to age, food habits, body index, and level of exposure to POPs. In addition, cancer and metabolic diseases are at an alarming level. Therefore, the public health impacts of POPs need continuous assessment in South Korea over the next decade.

The stressful lifestyle of urban dwellers has increased the demand for green-based leisure activities; considering such growing demand, this paper investigated the potential mental health benefits of agritourism activities. The assessments were based on a questionnaire survey of two groups: visitors of agritourism sites around Seoul and a control group staying home (n = 200). In addition to measuring the participants’ well-being level and stress level, they were also asked to self-estimate their immediate mood after their activities of the day. The analysis was conducted with R version 4.1.0 to explore the potential relationships and interactions between the activity of the day, perceived psychological factors, and the immediate emotional outcomes. Findings reveal that visitors to the agritourism sites perceived considerable improvement in their immediate mood compared to the control group who stayed home. Results indicate a significant interaction between self-reported wellbeing and agritourism activities and a combined effect on improved mood. Therefore, agritourism can potentially be a resource for a positive mood boost and improved mental health. The suggested practical implications can be applied as strategies to evoke the feeling of more connection to the agritourism activities and raise awareness of potential mental health outcomes.

Background: The aim of this study was to provide a scientific method based on Geographical Information System (GIS) regarding all sustainable development measures to locate a proper landfill for disposal of hazardous wastes, especially industrial (radioactive) wastes. Methods: Seven effective factors for determining hazardous waste landfill were applied in Qom Province, central Iran. These criteria included water, slope, population centers, roads, fault, protected areas and geology. The Analysis Hierarchical Process (AHP) model based on pair comparison was used. First, the weight of each factor was determined by experts; afterwards each layer of maps entered to ARC GIS and with special weight multiplied together, finally the best suitable site was introduced. Results: The most suitable sites for burial were in northwest and west of Qom Province and eventually five zones were introduced as the sample sites. Conclusion: GIs and AHP model is introduced as the technical, useful and accelerator tool for disposal site selection. Furthermore it is determined that geological factor is the most effective layer for site selection. It is suggested that geological conditions should be considered primarily then other factors are taken into consideration.

Background: The COVID-19 pandemic and social distancing measures have limited outdoor activities for many people, including university students who live inside the campus and far from their families. We investigated if and how the fear of COVID-19 had impacted visiting green areas and consequently the quality of life. Methods: The assessments were taken through a questionnaire-based survey of the university students living inside the campus in two universities (Konkuk and Sejong universities) in Seoul, South Korea in 2021 (n=255). Measuring three variables, the participants were asked to self-estimate their fear of COVID-19 and quality of life during the pandemic, and the time and frequency of the park visit. Structural equation modeling (SEM) and confirmatory factor analysis (CFA) were conducted to explore the potential relationship between the three main observed variables. Results: In the case of the campus students, visiting the green area cannot play a mediating impact on the effect of the COVID-19 fear and quality of life. Likewise, the data did not support the effect of COVID-19 fear on the quality of life for this group of students, however, significant correlations were found between the COVID-19fear and visiting green spaces (P<0.05) (positive effect on visiting, and negative effect on the time of visit). Conclusion: Students perceived not a considerable improvement in their quality of life after visiting green areas. It might be due to the fear of staying outdoor for a long time (frequency) during the pandemic, and students’ lifestyles. However, the quality of life for the students is likely to be influenced by other factors, rather than the fear of COVID-19.

This review examines how smart city technologies have influenced health equity in urban settings between 2019 and 2026, guided by a dual-lens framework that assesses both equity-related outcomes and the systemic factors enabling or constraining their realization. As cities increasingly turn to digital tools to strengthen healthcare delivery, it remains unclear whether these interventions narrow or widen existing health disparities. Drawing on interdisciplinary literature spanning public health, urban informatics, and digital governance, this synthesis finds that smart health initiatives have improved healthcare access for some underserved populations, but their overall effect on health equity remains modest, inconsistent, and highly dependent on local context. Persistent structural obstacles, including digital divides, socio-economic inequality, and fragmented governance, continue to limit equitable implementation, while institutional barriers emerge as the most widespread challenge. Conversely, people-centered design, participatory governance, inclusive digital infrastructure, and equity-sensitive policy frameworks stand out as critical enablers of more just outcomes. The review further identifies an underexplored link between environmental sustainability and smart city technology, showing that AI-driven tools addressing emissions and urban environmental quality can indirectly support more equitable health systems. Overall, the findings underscore that technological innovation alone is insufficient; realizing the equity potential of smart cities requires deliberate integration of social justice, environmental sustainability, and collaborative governance into digital health strategy and practice.