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PM2.5-Associated Premature Mortality Attributable to Hot-And-Polluted Episodes and the Inequality Between the Global North and the Global South 高温和污染事件导致的pm2.5相关过早死亡以及全球南北之间的不平等

IF 4.3 2区医学

Geohealth Pub Date : 2025-05-13 DOI: 10.1029/2024GH001290

Tao Huang, Yue Li, Jinhui Li, Joseph J. Y. Sung, Steve H. L. Yim

{"title":"PM2.5-Associated Premature Mortality Attributable to Hot-And-Polluted Episodes and the Inequality Between the Global North and the Global South","authors":"Tao Huang, Yue Li, Jinhui Li, Joseph J. Y. Sung, Steve H. L. Yim","doi":"10.1029/2024GH001290","DOIUrl":"https://doi.org/10.1029/2024GH001290","url":null,"abstract":"Exposure to air pollution and excessive heat during hot-and-polluted episodes (HPEs) may synergistically cause higher health risks globally. Nevertheless, long-term global spatiotemporal characteristics of HPEs and their health impacts remain unclear. Herein, we conducted statistical analyses using reanalysis data of fine particulate matter (PM2.5) and climate together with our derived concentration-response function for HPEs to assess global HPE variations from 1990 to 2019, and to estimate the PM2.5-associated premature mortality during HPEs. Our results reveal that HPE frequency increased significantly globally. HPE PM2.5 intensity in the Global North continuously increased, overpassing the Global South after 2010, indicating a recurred risk of air pollution under climate change in the Global North after several years of emission control endeavors. Globally, we estimated approximately 694,440 (95% CI: 687,996–715,311) total mortalities associated with acute PM2.5 exposure during HPEs from 1990 to 2019, with the Global South accounting for around 80% of these deaths. Among the most vulnerable 15 countries, India had by far the highest mortality burden, and the United States, Russia, Japan, and Germany were particularly highlighted as having higher burdens within the Global North. Our findings highlight the importance of considering environmental inequality between the Global North and the Global South, and co-benefits of air pollution-climate change mitigation during policymaking processes.","PeriodicalId":48618,"journal":{"name":"Geohealth","volume":"9 5","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GH001290","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Overexposed and Understudied: Environmental Risks Among Older Adults Experiencing Homelessness in Phoenix, Arizona 过度暴露和研究不足：亚利桑那州凤凰城老年人无家可归的环境风险

IF 4.3 2区医学

Geohealth Pub Date : 2025-05-12 DOI: 10.1029/2025GH001372

Zachary Van Tol, Ariane Middel, Jennifer K. Vanos, Kristin M. Ferguson

{"title":"Overexposed and Understudied: Environmental Risks Among Older Adults Experiencing Homelessness in Phoenix, Arizona","authors":"Zachary Van Tol, Ariane Middel, Jennifer K. Vanos, Kristin M. Ferguson","doi":"10.1029/2025GH001372","DOIUrl":"https://doi.org/10.1029/2025GH001372","url":null,"abstract":"Individuals experiencing homelessness are highly vulnerable to urban environmental hazards, such as heat and air pollution, due to a lack of stable housing and limited access to indoor or cooled spaces. These risks are heightened for older adults and individuals with preexisting health conditions. With intensifying summer heat in the American Southwest and the persistence of urban homelessness, this study explores how older adults experiencing homelessness in Phoenix, Arizona perceive and interact with heat and air pollution as well as the adequacy of available coping resources and information. A survey was co-produced with community members with lived experience. A sub-group of community members assisted in proctoring the surveys among adults 55 and older at a downtown service agency. Survey results informed the location of data collection using MaRTy—a mobile biometeorological cart—and remotely sensed fine particulate matter (PM2.5). Findings reveal that heat and air pollution significantly influence travel decisions and contribute to health issues for many respondents. Midday and evening thermal radiation levels regularly exceeded safe thresholds, while PM2.5 concentrations often surpassed annual air quality guidelines, though they posed less acute health risks. Most participants reported awareness of health risks and employed strategies to reduce exposure. However, many expressed that city-level, public resources are insufficient to prevent heat- and air pollution-related health issues. Findings underscore the need for targeted interventions—such as better access to transportation and essential healthcare and extended hours of operation for service providers—to enhance resource accessibility and mitigate environmental health risks for vulnerable populations.","PeriodicalId":48618,"journal":{"name":"Geohealth","volume":"9 5","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2025GH001372","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect Modification of Temperature Variability on the Association Between Ambient Heat and Hospitalization: A Nationwide Study in Brazil Between 2000 and 2015 温度变化对环境热与住院之间关系的影响：2000 - 2015年巴西全国研究

IF 4.3 2区医学

Geohealth Pub Date : 2025-04-26 DOI: 10.1029/2024GH001284

Mengwei Zhuang, Yanwen Cao, Shanshan Li, Micheline S. Z. S. Coelho, Paulo H. N. Saldiva, Yuming Guo, Qi Zhao

{"title":"Effect Modification of Temperature Variability on the Association Between Ambient Heat and Hospitalization: A Nationwide Study in Brazil Between 2000 and 2015","authors":"Mengwei Zhuang, Yanwen Cao, Shanshan Li, Micheline S. Z. S. Coelho, Paulo H. N. Saldiva, Yuming Guo, Qi Zhao","doi":"10.1029/2024GH001284","DOIUrl":"https://doi.org/10.1029/2024GH001284","url":null,"abstract":"Little evidence is available about how temperature variability (TV) may modify the association between ambient heat and health conditions, especially in less developed countries, for example, Brazil. This study explored the change in heat-hospitalization association from days with low to high temperature variabilities (TVs) in Brazil. We collected data on daily hospitalization and weather from 1,814 Brazilian cities during the 2000–2015 hot seasons. For each city, the heat-hospitalization association was estimated using the quasi-Poisson regression with constrained lag model on days with low and high TVs, respectively. City-specific effect estimates were then pooled using random-effect meta-analysis. Stratified analyses were performed by region, sex, age-group and cause category. Our results showed that at the national level the risk of hospitalization increased by 4.4% [95% confidence interval (CI): 4.0%–4.7%] and 2.7% (95%CI: 2.4%–3.0%) per 5°C increase in daily mean temperature on days with low and high TVs, respectively. The effect modification of TV on heat-hospitalization association was significant in the northeast, southeast and south, and for most population groups except for the children aged 0–4 years and the elderly aged ≥80 years. Significant effect modification of TV was observed in injury and poisoning, respiratory and cardiovascular diseases. Our findings suggest that in Brazil, the heat-health association is substantially modified by exposure to TV. The high heat susceptibility on the day with low TV warrants particular concern in order reducing the risk of disease burden.","PeriodicalId":48618,"journal":{"name":"Geohealth","volume":"9 4","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GH001284","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heat Waves and Early Birth: Exploring Vulnerability by Individual- and Area-Level Factors 热浪与早产：通过个体和区域层面的因素探索脆弱性

IF 4.3 2区医学

Geohealth Pub Date : 2025-04-23 DOI: 10.1029/2025GH001348

A. Fitch, M. Huang, M. J. Strickland, A. J. Newman, C. Kalb, J. L. Warren, S. Kelley, X. Zheng, H. H. Chang, L. A. Darrow

{"title":"Heat Waves and Early Birth: Exploring Vulnerability by Individual- and Area-Level Factors","authors":"A. Fitch, M. Huang, M. J. Strickland, A. J. Newman, C. Kalb, J. L. Warren, S. Kelley, X. Zheng, H. H. Chang, L. A. Darrow","doi":"10.1029/2025GH001348","DOIUrl":"https://doi.org/10.1029/2025GH001348","url":null,"abstract":"Extreme heat has been linked to many health outcomes, including preterm and early term birth. We examine associations between acute heat wave exposure and risk of preterm (PTB) (28–36 weeks) or early term (ETB) (37–38 weeks) birth, stratified by individual-level and area-level factors. Daily ambient mean temperature was linked to maternal residence in state vital records for preterm and early term births in California, Florida, Georgia, Kansas, Nevada, New Jersey, North Carolina, and Oregon between 1990 and 2017. Heat waves were identified during the four-day exposure window preceding birth using the 97.5th percentile mean temperature for zip code tabulation areas (ZCTA). We used a time-stratified case-crossover design, restricted to the warm season (May through September) and stratified by maternal age, maternal education, ZCTA-level impervious land cover or social deprivation index. We pooled estimated odds ratios across states using inverse-variance weighting. The PTB and ETB analyses included up to 945,836 and 2,966,661 cases, respectively. Heat-related ETB risk was consistently highest among women <25 years of age, women with ≤high school education, and women living in areas of higher social deprivation and impervious land cover. PTB associations were also elevated in these subgroups, but positive associations were also observed among older, more educated mothers, and in areas with less social deprivation. Across all subgroups and outcomes, the change in odds associated with heat waves ranged from no increase to a 7.9% increase. Heat-related early term birth risk is enhanced among subgroups associated with socioeconomic disadvantage, but patterns of vulnerability were less consistent for preterm birth.","PeriodicalId":48618,"journal":{"name":"Geohealth","volume":"9 4","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2025GH001348","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Associations Between Temperature and Location of Injury or Condition Among Heat-Related Emergency Department Visits 在与热相关的急诊科就诊中，温度与受伤部位或状况之间的关系

IF 4.3 2区医学

Geohealth Pub Date : 2025-04-14 DOI: 10.1029/2024GH001287

Chen Li, Hua Hao, Morgan Lane, Noah Scovronick, Rebecca Zhang, Stefanie Ebelt, Howard H. Chang

{"title":"Associations Between Temperature and Location of Injury or Condition Among Heat-Related Emergency Department Visits","authors":"Chen Li, Hua Hao, Morgan Lane, Noah Scovronick, Rebecca Zhang, Stefanie Ebelt, Howard H. Chang","doi":"10.1029/2024GH001287","DOIUrl":"https://doi.org/10.1029/2024GH001287","url":null,"abstract":"High ambient temperature poses significant health risk globally. However, the relative importance of different exposure pathways leading to health risks remains unclear. For 9 US states during 2016–2018, ED visit records for heat exhaustion and heat stroke (HEAT), fluid and electrolyte imbalance (FEI), volume depletion (VD), and acute kidney injury (AKI) were identified via diagnosis codes. Co-diagnosed Y92 subcodes (Y codes) were used to categorize the patient's location at the time of injury or condition. Logistic regressions were used to estimate nonlinear associations between same-day temperature and Y codes for 11 non-residential versus residential locations among heat-related ED visits, including stratified analyses by patient age, race, and ethnicity. Odds ratios (OR) were calculated between the 95th versus 50th percentile of temperature. Overall, higher temperature was associated with increased risks of ED visits with Y codes for non-residential locations. HEAT ED visits were more likely to have Y codes for streets compared to residential locations (OR:1.68, 95% CI: 1.12–2.51). Similarly, VD visits were more likely to have Y codes for industrial area (OR: 2.68, 95% CI: 1.98–3.63), farms (OR:7.66, 95% CI: 4.05–14.50), recreation areas (OR:2.25, 95% CI: 1.78–2.84), and streets (OR:1.54, 95% CI: 1.39–1.70), but were less likely to have Y codes for public places (OR: 0.89, 95% CI: 0.84, 0.94). Similar associations were observed for FEI and AKI ED visits. Locations associated with higher heat risks may be due to exposure outdoor temperature and activities, supporting the need to develop strategies and interventions that minimize heat exposure in these areas.","PeriodicalId":48618,"journal":{"name":"Geohealth","volume":"9 4","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GH001287","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Short-Term Exposure to Ambient Temperatures on Parkinson's Diseases Mortality Among Elderly Aged 60 Years and Above in China, 2013–2020 2013-2020年短期环境温度暴露对中国60岁及以上老年人帕金森病死亡率的影响

IF 4.3 2区医学

Geohealth Pub Date : 2025-04-08 DOI: 10.1029/2024GH001246

Rui Zhang, Ainan Jia, Huan Zheng, Yonghong Li, Chaonan Wang, Siyuan Wu, Songwang Wang, Qing Guo, Yu Wang, Peng Bi, Jing Wu

{"title":"Effect of Short-Term Exposure to Ambient Temperatures on Parkinson's Diseases Mortality Among Elderly Aged 60 Years and Above in China, 2013–2020","authors":"Rui Zhang, Ainan Jia, Huan Zheng, Yonghong Li, Chaonan Wang, Siyuan Wu, Songwang Wang, Qing Guo, Yu Wang, Peng Bi, Jing Wu","doi":"10.1029/2024GH001246","DOIUrl":"https://doi.org/10.1029/2024GH001246","url":null,"abstract":"Parkinson's disease (PD) is a prevalent neurodegenerative disorder with significant negative health and economic implications for individuals, families and society. This study utilized an individual-level time-stratified case-crossover study design to investigate the relationship between ambient temperatures and PD mortality among the elderly in China. A combination of conditional logistic regression and distributed lag non-linear model was employed to analyze the data, and the mortality burden attributed to ambient temperatures was quantified. The study included a total of 59,397 deceased PD patients aged 60 years and above who died between 2013 and 2020. Findings revealed that the effects of extremely low temperature (−1°C) could persist for up to 14 days, while the impacts of extremely high temperature (30°C) were acute and last for 4 days and showing a significant harvest effect. For the overall population, the high temperatures significantly increased the risk of death, where low temperature did not. A lag0-14 cumulative odds ratios (COR) of extremely low temperature compared to the reference temperature (15°C) was 1.024 (95% CI: 0.971, 1.080). The lag0-14 COR of extremely high temperature was 1.206 (95% CI: 1.116, 1.304). Additionally, high temperatures attributed greater AF of 4.013 (95% eCI: 1.990, 5.894) comparing to low temperatures did of 0.762 (95% eCI: −0.624, 2.017). Significant differences were found across regions. No statistically significant differences were found between the sex and age. This nationwide study provides evidence for tailored interventions in specific regions and populations to reduce temperature-related PD mortality among the elderly in China.","PeriodicalId":48618,"journal":{"name":"Geohealth","volume":"9 4","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GH001246","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pathways for Potential Exposure to Onshore Oil and Gas Wastewater: What We Need to Know to Protect Human Health 陆上石油和天然气废水的潜在暴露途径：我们需要知道什么来保护人类健康

IF 4.3 2区医学

Geohealth Pub Date : 2025-04-03 DOI: 10.1029/2024GH001263

Ayusha Ariana, Isabelle Cozzarelli, Cloelle Danforth, Bonnie McDevitt, Anna Rosofsky, Donna Vorhees

{"title":"Pathways for Potential Exposure to Onshore Oil and Gas Wastewater: What We Need to Know to Protect Human Health","authors":"Ayusha Ariana, Isabelle Cozzarelli, Cloelle Danforth, Bonnie McDevitt, Anna Rosofsky, Donna Vorhees","doi":"10.1029/2024GH001263","DOIUrl":"https://doi.org/10.1029/2024GH001263","url":null,"abstract":"Produced water is a chemically complex waste stream generated during oil and gas development. Roughly four trillion liters were generated onshore in the United States in 2021 (ALL Consulting, 2022, https://www.gwpc.org/wp-content/uploads/2021/09/2021_Produced_Water_Volumes.pdf). Efforts are underway to expand historic uses of produced water to offset freshwater needs in water-stressed regions, avoid induced seismic activity associated with its disposal, and extract commodities. Understanding the potential exposures from current and proposed produced water uses and management practices can help to inform health-protective practices. This review summarizes what is known about potential human exposure to produced water from onshore oil and gas development in the United States. We synthesize 236 publications to create a conceptual model of potential human exposure that illustrates the current state of scientific inquiry and knowledge. Exposure to produced water can occur following its release to the environment through spills or leaks during its handling and management. Exposure can also arise from authorized releases, including permitted discharges to surface water, crop irrigation, and road treatment. Knowledge gaps include understanding the variable composition and toxicity of produced water released to the environment, the performance of treatment methods, migration pathways through the environment that can result in human exposure, and the significance of the exposures for human and ecosystem health. Reducing these uncertainties may help in realizing the benefits of produced water use while simultaneously protecting human health.","PeriodicalId":48618,"journal":{"name":"Geohealth","volume":"9 4","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GH001263","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparing Integrated Heat Stress Indicators With Raw Meteorological Variables in Predicting Heat Stroke-Related Ambulance Transportations in Japan 综合热应激指标与原始气象变量在预测日本中暑相关救护车运输中的比较

IF 4.3 2区医学

Geohealth Pub Date : 2025-04-01 DOI: 10.1029/2024GH001257

Qiang Guo, Vera Ling Hui Phung, Chris Fook Sheng Ng, Kazutaka Oka, Yasushi Honda, Masahiro Hashizume

{"title":"Comparing Integrated Heat Stress Indicators With Raw Meteorological Variables in Predicting Heat Stroke-Related Ambulance Transportations in Japan","authors":"Qiang Guo, Vera Ling Hui Phung, Chris Fook Sheng Ng, Kazutaka Oka, Yasushi Honda, Masahiro Hashizume","doi":"10.1029/2024GH001257","DOIUrl":"https://doi.org/10.1029/2024GH001257","url":null,"abstract":"The increasing threat of heat stress poses significant risks to human health globally. To quantify heat exposure more effectively, integrated heat stress indicators (HSIs) have been developed to simplify the classification of heat stress severity and assist in public heat warnings. However, their ability to accurately predict daily heat stroke cases has not been fully assessed. In this study, we evaluated the performance of multiple HSIs in forecasting the number of heat stroke-related emergency ambulance dispatches (HT-EADs) across 47 prefectures in Japan and compared their accuracy to models using raw meteorological variables. Our results indicate that, while HSIs simplify the process of assessing heat stress, they generally show lower performances than models based on raw meteorological data. Among the eight HSIs tested, the Wet Bulb Globe Temperature (TWBG) showed the strongest predictive power, with median R2 values of 0.77 and 0.70 for the calibration and validation periods, respectively. However, models incorporating air temperature, relative humidity, wind speed, and solar radiation outperformed TWBG, achieving R2 values of 0.85 and 0.74. We also observed spatial variability in HSI performance, particularly in cooler regions like Hokkaido, where HSIs provided no improvement over temperature alone. Given these findings, we recommend that HSIs be rigorously evaluated with local health data before being used in heat warning systems for specific locations. For predictions requiring high accuracy, raw meteorological variables could be prioritized to ensure greater precision.","PeriodicalId":48618,"journal":{"name":"Geohealth","volume":"9 4","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GH001257","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143741194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Use of Water Quality Index and Pesticides-Related Human Health Risk Assessment for Evaluating the Surface Water Sustainability Status of the Kakia-Esamburmbur Agricultural Watershed, Narok County, Kenya 利用水质指数和农药相关人类健康风险评估评价肯尼亚纳罗克县kakia - esamburbur农业流域地表水可持续性状况

IF 4.3 2区医学

Geohealth Pub Date : 2025-03-27 DOI: 10.1029/2024GH001169

Wendyam Arsene Flavien Damiba, John Mwangi Gathenya, James Messo Raude, Patrick Gathogo Home

{"title":"Use of Water Quality Index and Pesticides-Related Human Health Risk Assessment for Evaluating the Surface Water Sustainability Status of the Kakia-Esamburmbur Agricultural Watershed, Narok County, Kenya","authors":"Wendyam Arsene Flavien Damiba, John Mwangi Gathenya, James Messo Raude, Patrick Gathogo Home","doi":"10.1029/2024GH001169","DOIUrl":"https://doi.org/10.1029/2024GH001169","url":null,"abstract":"The increase in water contaminants threatens ecosystems and human health, underscoring the need for effective water quality (WQ) control. This study assessed the Kakia-Esamburmbur catchment's water sustainability status for drinking purposes by analyzing water samples from the catchment. In-depth physical, chemical, and microbiological investigations were undertaken using a dual approach. This entailed using the Water Quality Index (WQI) for domestic uses and applying a health risk assessment model. The study revealed that turbidity, total viable bacteria, fecal coliforms, and Escherichia coli exceeded WHO, East African, and Kenyan standards (EAS and KEBS) for domestic use and that 50% of samples tested for electrical conductivity also exceeded these guidelines. According to EAS for natural drinking water, 30% of water sources were classified as poor, 20% as very poor, and 50% as unsuitable for domestic use. Overall mean WQI values, based on standards, indicated that the WQ was unfit for domestic use. Nine pesticides associated with antibiotic resistance genes (ARGs) were identified and quantified using Pesticide Human Health Risk Assessment (PHHRA). As a result, 70% of water samples had high levels of carbendazim (CBD), rendering them unsafe for children and infants to consume. This was indicated by a hazard quotient (HQ) > 1 and hazard index (HI) > 1. Statistical evaluations showed geogenic and anthropogenic pressures control hydrogeochemical and microbiological processes in water.","PeriodicalId":48618,"journal":{"name":"Geohealth","volume":"9 4","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GH001169","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling the Impact of Climate Extremes on Seasonal Influenza Outbreaks Across Tropical and Temperate Locations 模拟极端气候对热带和温带地区季节性流感爆发的影响

IF 4.3 2区医学

Geohealth Pub Date : 2025-03-27 DOI: 10.1029/2024GH001138

Aleksandra R. Stamper, Ayesha S. Mahmud, Jennifer R. Nuzzo, Rachel E. Baker

{"title":"Modeling the Impact of Climate Extremes on Seasonal Influenza Outbreaks Across Tropical and Temperate Locations","authors":"Aleksandra R. Stamper, Ayesha S. Mahmud, Jennifer R. Nuzzo, Rachel E. Baker","doi":"10.1029/2024GH001138","DOIUrl":"https://doi.org/10.1029/2024GH001138","url":null,"abstract":"Influenza epidemics, a major contributor to global morbidity and mortality, are influenced by climate factors including absolute humidity and temperature. Climate change is expected to increase the frequency and severity of climate extremes, potentially impacting the duration and magnitude of future influenza epidemics. However, the extent of these projected effects on influenza outbreaks remains understudied. Here, we use an epidemiologic model adapted for temperate and tropical climates to explore how climate variability may affect seasonal influenza. Using climate anomalies derived from historical data, we found that simulated periods of anomalous climate conditions impacted both the projected influenza outbreak peak size and the total proportion infected, with the strongest effects observed when the anomaly was included just before the typical peak. Effects varied by climate: temperate regions showed a unimodal relationship, while tropical climates exhibited a nonlinear pattern. Our results emphasize that the intensity of weather extremes is key to understanding how climate change may affect influenza outbreaks, laying the groundwork for utilizing weather variability as a potential early warning for influenza activity.","PeriodicalId":48618,"journal":{"name":"Geohealth","volume":"9 4","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GH001138","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0