International Journal of Environmental Health Research最新文献

Anaemia is an important global health issue with various factors responsible for its occurrence. Though nutritional deficiency is one of the main causes of the disease, evidence suggests a potential link between long-term exposure to ambient air pollution and an increased risk of developing anaemia. Our scoping review evaluates studies conducted across the world to examine possible associations between anaemia and ambient air pollution. Six databases were searched, 153 sources were identified, and 21 articles were included in the review. Apart from one article which showed no significant effect, studies reported positive associations between anaemia and air pollution. This was true for both indoor and outdoor air pollution, various types of particulate matter exposure, and across demographic groups. The review highlights the importance of recognizing exposure to air pollution as a potential risk factor for anaemia and emphasizes the imperative for focused interventions and policy measures to mitigate air pollution.

The ethyl acetate, ethanol, methanol, and water extracts of cypress from three Tunisian regions (Bizerte, Ben Arous, and Nabeul) were reported for their phenolic content, antioxidant, and antibacterial activities. Cypress extract had an important antiradical and antibacterial potential which was strongly related to the organoleptic quality of the extract which appeared strongly region dependent. The highest contents of polyphenols were obtained in the methanol extract at the region of Bizerte (315.75 mg GAE/g DW). Cupressuflavone was the major compound with high proportions in methanol extract of Bizerte (68%). Amentoflavone also constituted an important flavonoid compound presented in higher proportion in the ethyl acetate extract of Ben Arous (21.2%). For Gram-positive bacteria strains, Staphylococcus aureus was sensitive to the ethanol extract of Nabeul with IZ = 40 mm. This study suggests cypress as potential natural source of antioxidants and antibacterial agents.

Existing mental health studies usually disregard people's neighborhood experiences in the past, which may have long-lasting mental health effects. This may particularly be true for migrants. To assess how the perceived pre- and post-migration neighborhood environment shapes migrants' mental health later on in life, a quasi-longitudinal survey (N = 591) among migrants was conducted in Shenzhen, China. The risk of poor mental health was screened with the General Health Questionnaire (GHQ). Perceptions of the pre- and post-migration neighborhood environment were measured retrospectively and assessed with structural equation models. The results show that the direct pathways linking the perceived post-migration neighborhood physical (NPE) and social environment (NSE) to migrants' mental health are significant. No direct association is found between the pre-migration neighborhood environments and mental health. The indirect path between the pre-migration NPE/NSE and mental health is significantly mediated by the post-migration NPE and NSE. Migrants' SES development and their neighborhood attainment interplay overtime which have long-term impacts on their mental health. Our findings suggest that the pre-migration neighborhood plays a crucial role in migrants' mental health. This confirms a path dependency of migrants' neighborhood environment throughout their migrations. Future mental health studies are advised to incorporate neighborhood characteristics along migrants' residential histories.

Air pollution in the interior of our homes is caused by diverse chemical, physical, and biological entities. This review comprehensively explores the current understanding of sources and health impacts of gaseous and particulate pollutants. Trend analysis of indoor air research worldwide revealed a quantum jump of 2.8 times in the number of publications during the last ten years. Indoor air pollutants are innumerable, but only a few are widely prevalent in most households. The qualitative complexity of pollutants translates to different health problems, including respiratory diseases, cardiovascular conditions, cancer, and deaths. There exist wide-scale disparities in the negative impacts among different economic strata, genders, and age groups; children and elderly populations are more vulnerable. In developing countries, pollutants primarily arise from traditional sources, whereas in developed countries, pollutants from non-conventional sources are comparatively significant. Only a few countries have indoor air regulations, policies, monitoring plans and effective enforcement.

Microplastic pollution is a growing environmental and health issue. This study evaluates microplastic pollution awareness among medical students at Pamukkale University and the factors influencing it. A cross-sectional study was conducted in June 2023 with 474 students from the 1st, 3rd, and 6th years, using a 26-item questionnaire, including the 14-item Microplastic Pollution Awareness Scale (MPAS). The mean MPAS score was 22.94 ± 3.67, reflecting moderate to high awareness. Female students (p = 0.001), prior knowledge of microplastics (p < 0.001), and concern about microplastic health risks (p < 0.001) were associated with higher awareness. Social media was the most common source of information (49.2%). Although awareness is moderate, significant gaps exist in students' understanding of microplastic health impacts. Targeted educational interventions are needed to close these gaps, empowering future healthcare professionals to address the risks of microplastic pollution.

This study aimed to investigate the presence of SARS-CoV-2, yeasts, and bacteria in isolated free-living amoeba (FLA) from COVID-19 patients. Nasopharyngeal swabs (n = 60) were obtained from COVID-19 patients. After cultivation, morphological characterization, and RNA/DNA extraction, the presence of selected microorganisms was investigated. From 60 COVID-19 samples, 18 (30%) were positive for FLA. Acanthamoeba sp. Naegleria australiensis, Tetramitus sp. and Vermamoeba vermiformis were characterized in 12 (80%), 1 (6.66%), 2 (13.33%), and 7 (38.88%) of samples, respectively. SARS-CoV-2 RNA was not detected in FLA. Candida albicans, C. tropicalis, and C. parapsilosis were detected in (11/18; 61.11%), (3/18; 16.67%), and (3/18; 16.67%) of samples, respectively. Geotrichum candidum was detected in 10/18 (55.55%) of samples. Streptococcus spp. and Staphylococcus spp. were identified in 16/18 (88.88%) and 3/18 (16.67%), respectively. The presence of yeasts and bacteria signifies the possible role of FLA in distribution of secondary infections in susceptible patients.

Evidence regarding the cognitive effects of air pollution is inconsistent. This study aimed to quantitatively analyze the relationship between air pollutants and cognitive abilities using the Mini-Mental State Examination (MMSE). We systematically searched for studies published until July 1, 2023, and assessed heterogeneity with Cochran's Q test and I² statistics, while publication bias was evaluated using Funnel plots and Egger's test. Out of 380 studies, 17 were included in the meta-analysis. Results demonstrated significant relationship among long-term exposure to PM_2.5, O₃, and cognitive decline. The pooled RR of cognitive impairment per 10μg/m³ increase were 1.17 for PM_2.5 and 1.07 for PM₁₀. Furthermore, there was a significant association between cognitive decline and long-term exposure to PM_2.5 (β = -0.30; I² = 95.30%) and PM₁₀ (β = -0.15; I² = 87.50%). Our research suggests that long-term exposure to air pollution, especially PM_2.5, is a risk factor for cognitive impairment.

Metals interact with nutrients in plants grown on spent engine oil (SEO) soils; thus, relationship of metals and nutrients in several morphological parts of economical plants cultivated on SEO soils using a 3 × 4 factorial and a totally randomized design is documented. The polluted-vegetated soils were SEO treated at 0, 2, 4, 8% v/w and planted T. paniculatum and T. fruticosum separately. Before treatment, SEO tested positive for Cd, Zn, Pb, Cr, Cu, Fe and Ni, while at treatment, non-vegetated soils accumulated Pb, Cu, Zn, Ni, Fe. The T. paniculatum on SEO had more Cd among plants. ANOVA indicated significant (P < 0.05) relationship between metals, SEO and treated soils. A Post hoc indicated Fe and Pb levels differed significantly across SEO vegetated soils, while PCA suggests treated plant roots and leaves accumulated more of the toxic metals. These plants parts should not be consumed from SEO-polluted areas.

Adolescence has been identified as a particularly vulnerable age group with a high prevalence of insomnia and a heightened susceptibility to experiencing psychotic experiences, which in turn increases the risk of developing psychotic disorders. In particular, insomnia symptoms were found to be predominant among noise-sensitive adolescents exhibiting a higher level of noise annoyance. This study aimed to assess the moderating effect of insomnia severity between noise annoyance and psychotic disorders among Lebanese adolescents. A cross-sectional study was conducted among 527 Lebanese adolescents. Participants filled a self-administered online questionnaire. Insomnia moderated the association between noise annoyance and psychotic disorders. Noise annoyance was significantly associated with a higher risk of emergence of psychotic disorders. At low and moderate levels of insomnia severity, higher noise annoyance was significantly associated with higher psychotic experiences. Understanding how these variables interact provide valuable insights into the underlying mechanisms leading to psychotic disorders among adolescents.

More than 100 million children and 13% of the adult population suffer from obesity globally. People with obesity experience higher risks of chronic illness, poor mental health outcomes, and premature death. Exposure to natural environments, including green spaces, encourages regular physical activity and cardiovascular exercise to combat obesity. This systematic review, based on the health lifestyle theory, explores previous research on the relationship between natural environments and obesity. We reviewed studies (N = 11) published between 2018 and 2023 examining the relationship between participants (N = 1,225,680) across seven countries. Two overarching areas of impact emerged: environmental health factors (air pollution) and social factors (socioeconomic status and food availability). Although many studies suggested that exposure to green spaces correlated with a lower incidence of obesity, few studies identified possible external factors to explain the relationship between green space and obesity. Implications for future policy legislation, clinical interventions, and research are presented.