{"title":"Sustainable Agricultural Development Through Straw Treatment on Fields Using Microbial Products: A Case Study in Vietnam.","authors":"Van-Phuc Dinh, Bich-Ngoc Duong, Thanh Tran, Hoai-An Tran-Vu, Ngoc-Mai Dang-Thi, Hoai-Luan Phan-Van, Tuan-Kiet Tran, Thanh Q Nguyen","doi":"10.1177/11786302251343765","DOIUrl":"10.1177/11786302251343765","url":null,"abstract":"<p><p>Straw burning remains a significant environmental and agricultural challenge, releasing harmful pollutants and depleting soil fertility. This study evaluates the effectiveness of 2 novel microbial formulations, NTT-02 and NTT-03, in promoting straw decomposition and enhancing soil quality. Field experiments demonstrated that NTT-02 application resulted in a 15% increase in total organic carbon (TOC), a 12% increase in total nitrogen (TN), and a 10% increase in total phosphorus (TP) compared to untreated controls. Additionally, total aerobic microbial counts increased by 1.5 times, and cellulose-decomposing microorganisms doubled in population, indicating enhanced soil microbial activity. The microbial treatments accelerated straw decomposition, reducing the breakdown period from 28 days to 14 to 18 days. Furthermore, rice yield improved by 8% to 10% relative to conventional practices. These results highlight the potential of microbial-based straw treatments as a sustainable alternative to open-field burning, promoting improved soil health, enhanced crop productivity, and environmentally responsible agricultural practices.</p>","PeriodicalId":11827,"journal":{"name":"Environmental Health Insights","volume":"19 ","pages":"11786302251343765"},"PeriodicalIF":2.3,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12182624/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144474373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Prosper Manu Abdulai, Onyinyechi Bede-Ojimadu, Amarachi Paschaline Onyena, Chiara Frazzoli, Naomi A Mogborukor, Osazuwa Clinton Ekhator, Godswill J Udom, Eudora Nwanaforo, Orish Ebere Orisakwe
{"title":"Public Health Effects of Polycyclic Aromatic Hydrocarbons Exposure Through Air, Water, Soil, and Food in Ghana: Possible Economic Burden.","authors":"Prosper Manu Abdulai, Onyinyechi Bede-Ojimadu, Amarachi Paschaline Onyena, Chiara Frazzoli, Naomi A Mogborukor, Osazuwa Clinton Ekhator, Godswill J Udom, Eudora Nwanaforo, Orish Ebere Orisakwe","doi":"10.1177/11786302251343767","DOIUrl":"10.1177/11786302251343767","url":null,"abstract":"<p><p>Exposure to polycyclic aromatic hydrocarbons (PAHs) is a major threat to public health and economic stability, particularly in Sub-Saharan African countries such as Ghana. However, limited consolidated evidence exists on the extent of exposure, associated health outcomes, and economic impacts. This systematic review aimed to summarize available studies on health effects of PAH exposure in Ghana and assess potential economic implications. A comprehensive search of PubMed, Scopus, Google Scholar, and African Journals Online was conducted for studies published between January 2014 and January 2025. Sixteen studies met the eligibility criteria. Considerable heterogeneity was observed regarding study designs, target populations, matrices assessed, and PAH analytes measured. Most studies were ecological, limiting comparability and economic estimation. Nonetheless, findings indicate significant exposure to PAHs through environmental (soil, street dust, particulate matter) and occupational (fish smoking, urban living) sources. Urinary PAH metabolite levels among exposed groups were substantially elevated, and over 70% of studies reported carcinogenic risk indices exceeding WHO and USEPA thresholds of 1 × 10⁻⁶. Health effects such as persistent cough, chronic headaches, tachycardia, and dyspnea were reported. Although no Ghanaian study directly evaluated the economic burden, the evidence suggests increased healthcare costs, productivity losses, and environmental remediation expenses. This review identifies critical gaps, including the need for personal exposure measurements, longitudinal health assessments, and economic evaluations. Addressing these gaps is essential for informed policy development and resource allocation to reduce the health and economic impacts of PAH pollution in Ghana.</p>","PeriodicalId":11827,"journal":{"name":"Environmental Health Insights","volume":"19 ","pages":"11786302251343767"},"PeriodicalIF":2.3,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12179457/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144474315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessing Rural Communities in Central and East Africa: How to Provide Clean Water and Sanitation by 2030.","authors":"Birhanu Chalchisa Werku, Abayineh Amare Woldeamanuel","doi":"10.1177/11786302251335130","DOIUrl":"10.1177/11786302251335130","url":null,"abstract":"<p><strong>Introduction: </strong>The provision of clean drinking water and proper sanitation is essential for public health, particularly in rural areas with limited resources. The goal of Sustainable Development Goal 6 is to ensure that all people have access to clean water and adequate sanitation by 2030.</p><p><strong>Objective: </strong>The purpose of this study is to identify differences in the availability of basic services such as drinking water and sanitation in rural areas of 15 African countries.</p><p><strong>Methods: </strong>The research examines data on sanitation and clean water from 15 African countries using a well-balanced panel data technique. Key indicators such as access to drinking water, sanitation services, and healthcare coverage were analyzed using descriptive statistics.</p><p><strong>Results: </strong>According to the findings, there are significant differences in the availability of clean water and sanitation in rural areas. The study draws attention to several problematic issues, such as a high rate of open defecation (29.3%), inadequate sanitation services (20.1%), and limited access to safe-guarded drinking water (7.4%). The number of people who lack access to electricity, clean cooking fuel, and basic hand washing facilities is alarming (20.6%, 26.7% and 14.4%, respectively). The deficiencies cause an average mortality rate from communicable diseases of 50.3% and inadequate treatment of diarrhea in children under 5 years of age (39.3%).</p><p><strong>Conclusions: </strong>Rural communities in 15 African countries face serious challenges when it comes to accessing clean water and sanitation, as indicated by the study. An urgent public health crisis is posed by the unavailability of safe managed drinking water for 7.4% of the population and the high prevalence of open defecation at 29.3%. To address these problems effectively, governments must establish integrated health and sanitation policies that emphasize community participation, public health education, and infrastructure improvements.</p>","PeriodicalId":11827,"journal":{"name":"Environmental Health Insights","volume":"19 ","pages":"11786302251335130"},"PeriodicalIF":2.3,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12144398/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144246980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Latrine Utilization and Associated Factors Among Households in East Africa: A Systematic Review and Meta-Analysis.","authors":"Yibeltal Assefa Atalay, Agumase Shibabaw, Kelemu Abebe Gelaw","doi":"10.1177/11786302251339523","DOIUrl":"10.1177/11786302251339523","url":null,"abstract":"<p><strong>Introduction: </strong>The utilization of sanitation facilities is recognized as critical factor in disrupting the transmission of diseases associated with the fecal-oral route. Nevertheless, there exists a paucity of evidence regarding the aggregated prevalence of latrine utilization across East Africa.</p><p><strong>Objective: </strong>This study aimed to determine the pooled prevalence of latrine utilization and its associated factors among households in East Africa.</p><p><strong>Methods: </strong>This systematic review and meta-analysis was designed based on the PRISMA guidelines. A comprehensive systematic literature search focused on prevalence of latrine utilization and its associated factors in East African was conducted using the PubMed, Science Direct Cochrane Library, and African Journals Online (AJOL) databases. Gray literature was explored through Google Scholar and Google Search. Review authors independently extracted all necessary data using a standardized data extraction format. STATA 14 statistical software was used to analyze the data. A random effect model was computed to estimate the pooled level of latrine utilization in East Africa.</p><p><strong>Results: </strong>After reviewing 1806 studies, 24 studies were finally included in this systematic review and meta-analysis. The result of 24 studies revealed that the pooled prevalence of latrine utilization level in East Africa was 57.05% (95% CI: [50.51, 63.60]). The factors associated with the utilization of latrine included educational status (AOR: 3.69, 95% CI: [2.07, 6.60]), latrine distance from dwelling (AOR: 2.73, 95% CI: [1.70, 4.36]), and latrine cleanness (AOR = 5.06, 95% CI: [2.76, 9.27]).</p><p><strong>Conclusions: </strong>In this review, the pooled prevalence of latrine utilization in East Africa was low. Factors significantly associated with latrine utilization were educational status, latrine distance from dwelling and cleanness of the latrine. Therefore, it is recommended that measures to promote behavioral change toward further improvement in sustainable and consistent latrine utilization should be carried out based on the evidence of the determinant factors found in this systematic review.</p>","PeriodicalId":11827,"journal":{"name":"Environmental Health Insights","volume":"19 ","pages":"11786302251339523"},"PeriodicalIF":2.3,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12144351/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144246981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Antimicrobial Resistance Profile of <i>Escherichia coli</i> Isolated From Hospital and Industrial Wastewater Systems.","authors":"Kajelcha Fikadu Tufa, Alemayehu Godana Birhanu","doi":"10.1177/11786302251339254","DOIUrl":"10.1177/11786302251339254","url":null,"abstract":"<p><p>The global rise of antimicrobial resistance in Escherichia coli poses critical public health challenges, especially in resource-limited settings. This study aimed to investigate the role of untreated hospital sewage and industrially polluted river water as reservoirs for antimicrobial-resistant <i>E. coli</i>. A total of 40 environmental samples were collected, yielding 75 E. coli isolates identified using phenotypic methods. Due to time and resource limitations, 50 isolates were subjected to antimicrobial susceptibility testing by the <i>Kirby-Bauer</i> disk diffusion method against 11 antimicrobial agents. These antimicrobials were selected based on their clinical significance, availability, dominance in resistance mechanism, and utilization trends in Ethiopia. Notably, <i>E. coli</i> isolates from the Yerer River downstream of industrial waste discharge exhibited the highest multi-drug resistance rate (90%), while upstream isolates were fully susceptible to all tested antimicrobials. The Xadacha River isolates showed moderate multi-drug resistance (66.67%). Hospital sewage isolates displayed escalating multi-drug resistance rates across the 3 departments, including the intensive care unit (62.5%), open patient department (91.67%), and inpatient department (100%). Overall, 86.67% of hospital sewage-derived isolates and 65% of river isolates demonstrated multi-drug resistance. Polymerase chain reaction confirmed antimicrobial resistance-associated genes (<i>tetA</i>: 83.33%; <i>blaTEM</i>: 57.14% of the resistant isolates), underscoring hospital sewage and polluted water as critical reservoirs for antimicrobial resistance gene dissemination. The 2 genes were selected based on their availability, phenotypic resistance profile, and nature as sentinel markers for high-use antimicrobial classes in Ethiopia. These findings highlight the urgent need for comprehensive wastewater treatment systems, stricter antimicrobial stewardship, and integrated One Health surveillance to mitigate AMR risks to human, animal, and environmental health.</p>","PeriodicalId":11827,"journal":{"name":"Environmental Health Insights","volume":"19 ","pages":"11786302251339254"},"PeriodicalIF":2.3,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12126687/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Afam Uzorka, Joseph Candia, Living Ouyesiga, Ademola Olatide Olaniyan
{"title":"Analysis of Radionuclide Concentrations in Water Samples From Selected Bore-Holes in Arua City, Northern Uganda.","authors":"Afam Uzorka, Joseph Candia, Living Ouyesiga, Ademola Olatide Olaniyan","doi":"10.1177/11786302251339260","DOIUrl":"10.1177/11786302251339260","url":null,"abstract":"<p><p>Access to safe drinking water is essential for public health. In Arua City, Northern Uganda, boreholes serve as a primary water source, but their safety may be compromised by radionuclide contamination. This study analyzed gamma-ray-emitting radionuclides (²²⁶Ra, ²³²Th, and ⁴⁰K) in borehole water samples from Ayivu East, Ayivu West, and Arua City Central using gamma spectrometry. Eighteen samples from 6 boreholes per division were assessed against UNSCEAR global averages. Results showed high variability in radionuclide concentrations. Several boreholes, particularly on Arua Hill's slopes, had ²²⁶Ra levels exceeding the global average of 35 Bq/L, while ²³²Th remained below 30 Bq/L in all samples. ⁴⁰K concentrations surpassed the global average of 400 Bq/L in all divisions. Absorbed dose rates in some boreholes exceeded 57 nGy/h, though annual effective doses remained below 0.41 mSv/y. Hazard indices in specific boreholes suggested health risks. The study recommends regular monitoring, geological assessments, safe drilling, public awareness, and water treatment to ensure water safety and protect public health.</p>","PeriodicalId":11827,"journal":{"name":"Environmental Health Insights","volume":"19 ","pages":"11786302251339260"},"PeriodicalIF":2.3,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12123126/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Godwin Dogbey, Brigid Unim, Abbiw Richard Kwamena, Godwin Clinton Ahiabor, Marta A Kisiel, Xingwu Zhou, Apollo O Maima, Amidu Abdul-Aziz, Ben Enyetornye, Robert Niayele, Anthony Amison Agbolosu, Kweku Asare-Dompreh
{"title":"Assessing the Knowledge and Experience of Healthcare Workers in Zoonoses and the One Health Approach: A Cross-Sectional Study in Ghana.","authors":"Godwin Dogbey, Brigid Unim, Abbiw Richard Kwamena, Godwin Clinton Ahiabor, Marta A Kisiel, Xingwu Zhou, Apollo O Maima, Amidu Abdul-Aziz, Ben Enyetornye, Robert Niayele, Anthony Amison Agbolosu, Kweku Asare-Dompreh","doi":"10.1177/11786302251339881","DOIUrl":"10.1177/11786302251339881","url":null,"abstract":"<p><strong>Background: </strong>Healthcare workers' (HCWs') knowledge in delivering medical services is significantly influenced by their understanding of zoonotic diseases and the One Health (OH) concept. This study investigates the extent of HCWs' knowledge and experience regarding zoonosis and the One Health approach in Ghana.</p><p><strong>Methods: </strong>This cross-sectional study involved 182 HCWs at the Tamale Teaching Hospital who completed questionnaires. Logistic regression was conducted to assess associations between socio-demographic factors and knowledge of zoonoses and OH. The correlation between knowledge and self-reported experience with zoonoses was assessed using Spearman's correlation.</p><p><strong>Results: </strong>While 79.7% of HCWs correctly defined zoonoses, only 18.7% could sufficiently identify zoonotic diseases, and 59.3% were familiar with OH. The most commonly identified zoonotic disease was Ebola (75.3%), while brucellosis (12.1%) was the least recognized. Medical doctors were more likely to report previous encounters with zoonoses. Compared to medical doctors (reference HCWs), knowledge of OH was significantly higher among biomedical scientists (OR = 2.25, 95% CI: 0.72-7.37) and lower among nurses (OR = 0.92, 95% CI: 0.33-2.60). Professional experience of more than 5 years was associated with greater knowledge of rabies and tuberculosis. There was no significant correlation between knowledge of zoonoses and self-reported experience with any of the assessed diseases, except for a weak negative correlation with trypanosomiasis (Spearman's <i>r</i> = -0.206, <i>P</i> = .005).</p><p><strong>Conclusions: </strong>The majority of HCWs have inadequate knowledge of zoonosis. Although most HCWs are aware of OH, they have limited experience with zoonosis and OH. Curricula for training HCWs should include more courses on zoonosis and arrange refresher training programs for HCWs. Enhancing HCWs' expertise in zoonotic disease surveillance and detection is crucial for early identification and control of zoonoses, aiding in the prevention of future outbreaks.</p>","PeriodicalId":11827,"journal":{"name":"Environmental Health Insights","volume":"19 ","pages":"11786302251339881"},"PeriodicalIF":2.3,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12123109/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Systematic Review of Factors Influencing the Adoption of Green Practices Within Healthcare Centers to Mitigate Climate Change.","authors":"Mohsen Khosravi, Seyyed Morteza Mojtabaeian, Milad Ahmadi Marzaleh, Reyhane Izadi","doi":"10.1177/11786302251332058","DOIUrl":"10.1177/11786302251332058","url":null,"abstract":"<p><strong>Background: </strong>Climate change globally triggers health, environmental, and socio-economic issues, leading to disasters, resource scarcity, inequality, displacement, and security risks. To address the challenges posed by climate change, green practices have emerged as a major solution. This research aimed to identify and categorize the factors that influence the adoption of green practices in healthcare centers.</p><p><strong>Methods: </strong>This manuscript represents a qualitative thematic content analysis conducted in 2024 that systematically scrutinized literature spanning from 2000 to 2024. Multiple databases, including PubMed, Scopus, ProQuest, and the Cochrane Database of Systematic Reviews, were utilized for the search. A quality assessment using 3 quality assessment checklists for different types of studies was conducted on the final studies, followed by a thematic analysis of the findings obtained from the systematic review.</p><p><strong>Results: </strong>Twenty-nine references were included in the study as final studies. The quality assessment of these studies delineated their acceptable level of quality and risk of bias. The thematic analysis yielded 2 main themes: facilitators and barriers to the adoption of green practices.</p><p><strong>Conclusions and recommendations: </strong>The study found several factors influencing the adoption of green practices within healthcare centers. Meanwhile, it was suggested that governments should collaborate with stakeholders to enforce emissions regulations, invest in clean energy, and offer financial incentives for sustainability. Technological advancements can improve renewable energy adoption; However, developing nations may struggle to integrate green practices into healthcare due to resource constraints.</p>","PeriodicalId":11827,"journal":{"name":"Environmental Health Insights","volume":"19 ","pages":"11786302251332058"},"PeriodicalIF":2.3,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12123130/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sotirios Maipas, Ioannis O Vardiambasis, Christos D Nikolopoulos, Nikolaos Kavantzas
{"title":"A Mini-Review of the Potential Health Impacts of Indoor Radiation Exposure in Companion Animals.","authors":"Sotirios Maipas, Ioannis O Vardiambasis, Christos D Nikolopoulos, Nikolaos Kavantzas","doi":"10.1177/11786302251342972","DOIUrl":"10.1177/11786302251342972","url":null,"abstract":"<p><p>Poor indoor environmental quality is a major concern for both humans and companion animals-yet its impact on the latter is often overlooked. This mini review sheds light on indoor radiation sources that may affect the health of companion animals. Radon, primarily from the ground and possibly also from cat litter, naturally occurring radionuclides in feed, radiofrequency radiation from mobile and cordless phones, Wi-Fi networks, pet tracking devices, solar radiation, and various sources of extremely low frequency radiation are all common examples. Indoor radiation, an odorless and tasteless pollutant, may have the potential to negatively impact the health and well-being of companion animals, which are involuntarily exposed to this environmental health risk factor. Therefore, preventive and precautionary measures are necessary.</p>","PeriodicalId":11827,"journal":{"name":"Environmental Health Insights","volume":"19 ","pages":"11786302251342972"},"PeriodicalIF":2.3,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12120279/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144181949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Determinant and Characterization of Biogas Product at Different Agroecological Zones of Ethiopia.","authors":"Henok Habte, Mihret Dananto Ulsido, Shemelis Nigatu","doi":"10.1177/11786302251334727","DOIUrl":"10.1177/11786302251334727","url":null,"abstract":"<p><p>Biogas production uses microorganisms to degrade organic material in the absence of oxygen to produce CH<sub>4</sub>, CO<sub>2</sub>, and other residual gases. Anaerobic digestion of cattle manure and human feces for biogas production is an important technology in Ethiopia's National Energy Strategy. Thus, this study aimed to analyze determinants and characteristic composition of biogas product at different agroecological zones in Southern Ethiopia. In this study, biogas plants were categorized based on agroecology, size, age, and design type. A total of 32 biogas plants were included and their gas composition were analyzed using OPTIMA Biogas Analyzer. One-way ANOVA and paired-wise comparison were widely used for data analysis. ANOVA results for CH<sub>4</sub> revealed that agroecology, temperature, and biogas plant design were statistically significant whereas biogas plant size and age of biogas plants were not statistically significant. From this study, the authors concluded that agroecology, biogas plant design, and temperature significantly affect biogas yield quality. Future research needs to focus on seasonal variation of biogas product at different agroecological zones and evaluation of the rural household biogas plants' performance.</p>","PeriodicalId":11827,"journal":{"name":"Environmental Health Insights","volume":"19 ","pages":"11786302251334727"},"PeriodicalIF":2.3,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12099135/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144141631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}