Environmental Health Insights最新文献

Water and sanitation facilities in schools are directly linked to the attainment of Sustainable Development Goal (SDG) 6; however, these facilities are often grossly inadequate in both quality and quantity in public primary schools (PPS) in developing countries. This study examined the existing water and sanitation facilities in PPS in Oyo State, Nigeria, to identify disparities. Using ANOVA, variables extracted from the 2020 Oyo State Annual School Census report were analyzed and mapped to reveal spatial distribution at the local government level. Five water sources and 4 types of sanitation facilities were identified. Significant variations were observed across local government types (urban, semi-urban & rural, and rural) with respect to enrollment (P = .000), total number of toilets (P = .033), PPS with wells (P = .002), PPS with no water source (P = .001), PPS with flush toilets (P = .001), and PPS with other toilet types (P = .011). With sanitation facility availability below 20%, open defecation is likely to be prevalent in these schools. For the well-being of the pupils and the entire population of the state, the government needs to prioritize the provision of potable drinking water and improved sanitation facilities in PPS, while considering the need for facilities to be gender sensitive.

In this study, we aimed to investigate the impact of predicted particulates with a diameter of 2.5 μm or less (PM_2.5) using the satellite data on Years of Life Lost (YLL) as a health burden of air pollution. A 2-stage methodology was used in order to predict PM_2.5 using Aerosol Optical Depth (AOD). The predicted PM was corrected for its bias through Bland-Altman method and observed data. Relative Risk (RR), Attributable Fraction (AF), and Attributable Number (AN) of YLL were estimated as the effect of PM_2.5 on health. Based on the minimum value as the optimum value of PM, statistically a significant cumulative dose-response association was found. The significant association was mainly observed between lags 4 and 13. Also, based on the scenario, the total estimated YLL attributable to air pollution was 74227 years, with an AF of 0.45 which was statistically significant (95% CI: 0.14, 0.65). Based on the median value as the second scenario, there was not cumulative significant dose-response association. The subgroup analysis revealed that females and the elderly exhibited higher PM_2.5-related YLL compared to males and younger, respectively. Totally, the study revealed that impact of the predicted PM on YLL was significant when we selected the minimum value as reference. While, the impact was insignificant when we changed it to median value. This result highlights the important effect of reference value selection on the interpretation of dose-response and lag-response associations between PM_2.5 and YLL which should be addressed in next studies.

Aim: This study aimed to characterize ESBL-producing E. coli isolates obtained from apparently healthy captive wild birds from selected zoological gardens in Nigeria.

Materials and methods: A total of 121 freshly deposited faecal samples were collected from captive wild birds in seven major zoological gardens and pooled into 50 samples. The samples were screened for the presence of E. coli. The isolates obtained were tested against a panel of antibiotics and screened for ESBL production using the double disc synergy test (DDST). Primer-specific PCR was used to detect the carriage of ESBL genes (bla _CTX-M, bla _TEM and bla _SHV) by the isolates.

Results: A total of 26 ESBL-producing E. coli isolates (52%, n = 26/50) were obtained from the pooled faecal samples of captive wild birds. The highest resistance rate to antibiotics was observed with amoxicillin-clavulanate (88.5%), while the lowest resistance rate was observed with fosfomycin (3.8%). The isolates had Multiple Antibiotic Resistance Index (MARI) values ranging from 0.1 to 0.8 across the tested antibiotics. Approximately 65.4% of the isolates carried bla _CTX-M, while bla _TEM and bla _SHV were detected in 15.4% and 34.6% of the isolates, respectively.

Conclusion: This study revealed a significant prevalence of ESBL-producing E. coli in captive wild birds in Nigeria and highlighted the need to institute control measures in zoological gardens to prevent the transmission of antibiotic resistance.

Background: The public health risk of microbial contamination of fomites is evident from the numerous fomite-associated outbreaks that have occurred in several countries. Despite the high-touch nature of door handles across various settings, no comprehensive synthesis of contamination rates and microbial profiles has been performed.

Aim: The aim of this work was to assess the prevalence and types of microbial contamination on door handles in public and healthcare settings.

Methods: We systematically searched PubMed, Web of Science, and Scopus for studies published up to July 2024. A systematic review and meta-analysis were conducted according to the PRISMA guidelines. Pooled prevalence estimates were calculated via a random-effects model, and subgroup analyses were performed to assess differences on the basis of pathogen type, handle location, and setting.

Results: A total of 27 studies met the eligibility criteria. The overall estimation of microbial contamination of door handles revealed a prevalence of 9.96% (95% CI: 5.87‒14.11). Compared with viral contamination which was observed to be 17.73% (95% CI: 9.24‒27.81), bacterial contamination was less common at 6.20% (95% CI: 2.90‒10.42). The most predominant bacterial agent was Bacillus spp. (55.74%), followed by Acinetobacter baumannii (25.00%); the most prevalent virus was rotavirus (62.50%). The rate of contamination was higher for toilet door handles (23.04%) than for other public and healthcare handles (7.75%). Hospitals presented slightly higher contamination rates (10.82%) than did public settings (8.97%).

Conclusion: This systematic review highlights the widespread microbial contamination of door handles, particularly in public and healthcare environments. While bacterial contamination is predominant, the finding of viruses such as rotavirus, norovirus and even SARS-CoV-2 highlights the stringency of cleaning that has to be applied. These findings emphasise the need for targeted hygiene interventions to reduce the risk of pathogen transmission via door handles, particularly in high-traffic areas.

Background: The problem of toxic industrial waste impacting soil and water quality remains a significant environmental threat, yet comprehensive solutions are lacking. This review addresses this gap by exploring the effects of industrial waste on ecosystems and proposing strategies for remediation. Its aim is to provide a thorough understanding of the issue and suggest actionable solutions to minimize environmental damage.

Methods: A comprehensive scoping review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Data were sourced from major academic databases, including Science Direct, Scopus, PubMed, Academic Search Premier, Springer Link, Google Scholar, and Web of Science. A total of 105 relevant articles were included based on strict eligibility criteria. The review process encompassed identification, screening, and eligibility checks, followed by data abstraction and analysis.

Results: The scoping review highlights the severe impact of toxic industrial waste on soil and water quality, emphasizing pollutants such as heavy metals (cadmium, lead, chromium), organic contaminants, and excess nutrients (nitrogen and phosphorus). These pollutants degrade aquatic ecosystems, causing acidification, eutrophication, and oxygen depletion, leading to biodiversity loss and the mobilization of toxic metals. Soil health is similarly compromised, with heavy metal contamination reducing fertility and disrupting microbial communities essential for nutrient cycling. Mitigation strategies, including cleaner production technologies, effluent treatment, bioremediation, and phytoremediation, offer promising solutions. These eco-friendly approaches effectively reduce pollutants, restore ecosystems, and enhance environmental sustainability, thus mitigating the long-term risks posed by industrial waste on soil and water quality.

Conclusions and recommendations: The findings confirm that toxic industrial waste is a critical environmental threat that impacts both aquatic ecosystems and terrestrial soils. Immediate action is necessary to address ecological degradation. Recommended strategies include banning harmful raw materials, pre-treatment of waste, riparian buffering, bioremediation, and stricter regulations to control pollution and safeguard ecosystems.

Background: Honey bees (Apis mellifera) are vital for pollination, plant survival, and crop production. Poor disclosure of farmers' perceptions of bee health and mortality limits interventions for risk reduction. This study aims to assess the knowledge, attitudes, and practices of beekeepers on pesticide risk mitigation and bee mortality in Southwest Ethiopia.

Methods: A community-based cross-sectional study was conducted on 420 randomly selected beekeepers. The data were collected through interviews using a structured questionnaire. Factors associated with their intention and action to mitigate the risks were analyzed using logistic regression. Explanatory variables with a P-value of .05 or less were included in the multivariable model, and variables with a P-value less than .05 were reported as factors associated with the outcome variable. The Hosmer and Lemeshow tests were used to check model fit.

Results: The study found that overall 54.3% of beekeepers practice safe beekeeping and adopt risk mitigation measures. The study found that beekeeping training [AOR: 3.85; 95% C.I. 2.19-6.76], knowledge of pesticide risks on bee health [AOR: 4.18; C.I. 2.44-7.16], and attitudes toward risks of pesticides on bee health [AOR: 2.41; 95% C.I. 1.51-3.84] significantly influenced bee mortality risk mitigation practices. Those with training were 3.85 times more likely to practice risk mitigation, while those with good knowledge were 4.18 times more likely, and those with positive attitudes toward risks of pesticides on bee health were 2.41 times more likely to practice.

Conclusion and recommendations: The study reveals that half of beekeepers practice safe beekeeping and adopt risk mitigation measures, influenced by training, knowledge of pesticide risks, and attitudes. Key apiculture players can benefit from behavioral interventions to improve knowledge and attitudes, thereby mitigating bee mortality risks.

Paternal lead exposure has emerged as a potential contributor to adverse pregnancy outcomes, yet its impact remains underexplored compared to maternal exposure. This systematic review and meta-analysis synthesize evidence on the association between paternal lead exposure and pregnancy outcomes to inform public health interventions and future research. To evaluate the association between paternal lead exposure and adverse pregnancy outcomes, including spontaneous abortion, low birth weight, preterm birth, small-for-gestational-age, and congenital anomalies. A systematic search of PubMed, Scopus, and Google Scholar was conducted up to August 2024. Observational studies examining paternal lead exposure (⩾15 µg/dL) and its effects on pregnancy outcomes were included. Data synthesis adhered to PRISMA 2020 guidelines, and study quality was assessed using the Newcastle-Ottawa Scale. Meta-analysis was performed using a random-effects model to compute pooled odds ratios (ORs) with 95% confidence intervals (CIs). Eleven studies were included in the systematic review, with 7 contributing to the meta-analysis. The pooled OR for congenital anomalies associated with paternal lead exposure was statistically significant (OR = 2.09, 95% CI: 2.09-3.35; P < .01), indicating a strong association. However, no significant associations were observed for other outcomes: spontaneous abortion (OR = 1.11, 95% CI: 0.75-1.64), low birth weight (OR = 0.98, 95% CI: 0.68-1.39), preterm birth (OR = 1.57, 95% CI: 0.61-4.05), and small-for-gestational-age infants (OR = 0.92, 95% CI: 0.78-1.09). Heterogeneity was low for most outcomes, except for spontaneous abortion (I ² = 39%) and preterm birth (I ² = 52%). This study highlights a significant association between paternal lead exposure and congenital anomalies, emphasizing the need for occupational and environmental regulations targeting lead exposure among men of reproductive age.

Acrylamide is a contaminant prevalent in many commonly consumed foods, contributing to unavoidable human exposure. It is recognized as likely to be carcinogenic to humans as well, provoking global concerns. Numerous studies have investigated the impacts of acrylamide formation on food and drink, nutrition, and health. The intent of this analysis is to quantify global acrylamide research, evaluate recent developments, and recognize emerging trends, along with assessing research dynamics as an indicator of innovation among the scientific community. The Scopus database was used to perform an in-depth investigation of scientific publications on acrylamide from 1949 to 2023. Exploring prominent topics and the knowledge network related to the topic was conducted via VOSviewer version 1.6.20. Additionally, using SciMAT software, intellectual analysis was conducted to identify both driving and emerging themes in acrylamide-related research. A total of 11 880 publications on acrylamide were identified, with 10 720 (90.24%) being original articles. The leading contributors in terms of publication output were China (n = 2452; 20.64%), followed by the USA (n = 1564; 13.16%), and India (n = 952; 8.01%). The predominant themes were associated with (a) the functionalization of acrylamide polymers and (b) the formation and mitigation of acrylamide in food and drinks. Driving themes that will continue to shape the future of acrylamide research involve unraveling the synthesis of acrylamide; deploying acrylamide in nanocomposites to increase contaminant removal; investigating the genotoxicity of acrylamide, as well as its carcinogenic, reproductive, and neurotoxic effects; and researching the adsorption characteristics of acrylamide in aqueous solutions. In particular, an increased focus has been placed on understanding the formation and mitigation of acrylamide in recent years, signifying increased attention and alignment with the latest scientific advancements in this field. The creation of research plans in this way is significant, particularly in shaping future health policies.

Ponds in Kathmandu Valley reflect its rich history with water resources, but increasing pollution threatens public health and the environment. This study aimed to assess the physicochemical and microbial quality of pond water and further analyze the factors influencing E. coli contamination. In 2023, water samples from 27 out of a total of 35 ponds were examined for physicochemical parameters (temperature, pH, TSS, turbidity, iron (Fe²⁺), nitrite (NO₂ ^-), phosphate (PO₄ ^3-), ammonia (NH₃), DO, BOD, and COD) and microbial parameters (total coliforms and E. coli). Results revealed that all ponds exceeded WHO limits for TSS and turbidity for drinking water. Furthermore 67% surpassed the iron limit, while 96% exceeded USEPA's BOD and COD levels for supporting aquatic life. Coliforms were present in all ponds, with E. coli detected in 67%, indicating the water was unfit for drinking under EU guidelines. Logistic regression revealed a significant association of COD and temperature (P-values 0.001 and 0.023 respectively) with E. coli presence. A 3D visualization of the data further supports the association and illustrates these relationships, COD having a greater impact. These findings underscore public health risks and environmental concerns, urging sewage and runoff management and recommending expanded seasonal studies to establish comprehensive water quality guidelines.

Climate change-induced flooding has caused public health crises in Borno State, Nigeria, which influence the increase of waterborne diseases and malnutrition. Flooding disrupts water and sanitation systems, creating breeding grounds for waterborne diseases such as cholera, malaria, and diarrheal illnesses. The displacement of communities and destruction of agricultural infrastructure due to flooding further increase food insecurity, leading to malnutrition. This paper examines the interplay between flooding, waterborne diseases, and malnutrition in Borno State, highlighting the urgent need for climate adaptation strategies and strengthened healthcare systems to mitigate these public health challenges. Additionally, it highlights the double burden of conflict and climate change where ongoing conflicts impede efforts to mitigate and adapt to climate change. Finally, this paper outlines the socio-economic impacts of flooding and proposes interventions to mitigate the effects of flooding.