Lancet Planetary Health最新文献

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Too hot to handle? 太热了?
IF 21.6 1区 医学
Lancet Planetary Health Pub Date : 2025-07-01 DOI: 10.1016/j.lanplh.2025.101292
The Lancet Planetary Health
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引用次数: 0
Research digest 研究消化
IF 21.6 1区 医学
Lancet Planetary Health Pub Date : 2025-07-01 DOI: 10.1016/j.lanplh.2025.101290
Cahal McQuillan
{"title":"Research digest","authors":"Cahal McQuillan","doi":"10.1016/j.lanplh.2025.101290","DOIUrl":"10.1016/j.lanplh.2025.101290","url":null,"abstract":"","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 7","pages":"Article 101290"},"PeriodicalIF":21.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144781782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of climate mitigation and adaptation policies on health and health inequalities: a systematic review 气候减缓和适应政策对健康和健康不平等的影响:系统审查。
IF 21.6 1区 医学
Lancet Planetary Health Pub Date : 2025-07-01 DOI: 10.1016/j.lanplh.2025.06.001
Annika Hjelmskog PhD , Jennifer Boyd PhD , Amy Stevenson MRes , Roxana Pollack MSc , Corinna Elsenbroich PhD , Prof Alison Heppenstall PhD , Prof Jaime Toney PhD , Jo Winterbottom MA , Prof Petra Meier PhD
{"title":"The effect of climate mitigation and adaptation policies on health and health inequalities: a systematic review","authors":"Annika Hjelmskog PhD ,&nbsp;Jennifer Boyd PhD ,&nbsp;Amy Stevenson MRes ,&nbsp;Roxana Pollack MSc ,&nbsp;Corinna Elsenbroich PhD ,&nbsp;Prof Alison Heppenstall PhD ,&nbsp;Prof Jaime Toney PhD ,&nbsp;Jo Winterbottom MA ,&nbsp;Prof Petra Meier PhD","doi":"10.1016/j.lanplh.2025.06.001","DOIUrl":"10.1016/j.lanplh.2025.06.001","url":null,"abstract":"<div><div>This systematic review focuses on the effects of climate adaptation and mitigation actions in high-income countries on health inequality. The paper reviews existing evidence (158 studies) on the potential of climate actions to narrow or widen health inequalities and identifies mechanisms via which these effects could occur. The extent of the evidence is highly variable and spread across multiple scientific disciplines. In some domains of climate action (such as greener transport and blue and green infrastructure) the evidence on effects on health inequality for different population groups is well developed. In other domains (such as marine conservation and biodiversity), key evidence gaps were identified. Considerable variation exists in the level of detail explaining different mechanisms. Both positive and negative effects on health inequality were found to be possible, suggesting the importance of this research area in supporting climate justice. A more coherent, interdisciplinary approach would enable robust conclusions regarding the effect of specific interventions.</div></div>","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 7","pages":"Article 101277"},"PeriodicalIF":21.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144620924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adolescent psychological health, temporal discounting, and climate distress under increased flood exposure in Bangladesh: a mixed-methods cross-sectional study 孟加拉国青少年心理健康、时间折扣和洪水暴露增加下的气候困扰:一项混合方法横断面研究。
IF 21.6 1区 医学
Lancet Planetary Health Pub Date : 2025-07-01 DOI: 10.1016/j.lanplh.2025.05.003
Liza Goldberg BSc , Prof Stephen Luby MD , Noshin Sayiara Shuchi MPH , Titly Sen MSc , Nazmul Hossen MSc , Gabrielle-Wong Parodi PhD , Erik Jensen JD , Nicole M Ardoin PhD , Mahbubur Rahman MD , Farjana Jahan MD
{"title":"Adolescent psychological health, temporal discounting, and climate distress under increased flood exposure in Bangladesh: a mixed-methods cross-sectional study","authors":"Liza Goldberg BSc ,&nbsp;Prof Stephen Luby MD ,&nbsp;Noshin Sayiara Shuchi MPH ,&nbsp;Titly Sen MSc ,&nbsp;Nazmul Hossen MSc ,&nbsp;Gabrielle-Wong Parodi PhD ,&nbsp;Erik Jensen JD ,&nbsp;Nicole M Ardoin PhD ,&nbsp;Mahbubur Rahman MD ,&nbsp;Farjana Jahan MD","doi":"10.1016/j.lanplh.2025.05.003","DOIUrl":"10.1016/j.lanplh.2025.05.003","url":null,"abstract":"<div><h3>Background</h3><div>Chronic exposure to climate stress disproportionately affects low-income households; however, the psychological health and climate distress levels of climate-vulnerable adolescents in low-resource settings has rarely been explored. We investigated the association between increased flood exposure and adolescent psychological health, climate distress, and temporal discounting (long-term planning capacity).</div></div><div><h3>Methods</h3><div>In this cross-sectional, mixed-methods study, we administered surveys to assess symptoms of anxiety and depression, temporal discounting, and climate distress. We surveyed 1200 adolescents aged 15–18 years from low-income households in Dhaka, Bangladesh (a low-flood-risk location) and Barisal, Bangladesh (a high-flood-risk location). We also conducted 16 focus group discussions among adolescents across both regions.</div></div><div><h3>Findings</h3><div>Between Aug 7 and Dec 15, 2023, adolescents living under higher flood exposure in Barisal had significantly greater odds of anxiety symptoms (adjusted odds ratio 1·94 [95% CI 1·41–2·65], p&lt;0·0001) and depressive symptoms (3·52 [1·94–6·40], p&lt;0·0001) relative to those under low flood exposure in Dhaka. Adolescents experiencing anxiety symptoms had significantly greater odds of exhibiting temporal discounting (2·00 [1·16–3·45], p=0·013). Our focus group discussions suggest pathways by which cognitive overload during extreme floods contribute to adolescent preferences against long-term flood adaptation planning.</div></div><div><h3>Interpretation</h3><div>An increased prevalence of anxiety and depressive symptoms among flood-vulnerable adolescents in low-income settings might be related to temporal discounting behaviour that could threaten their climate change resilience.</div></div><div><h3>Funding</h3><div>School of Medicine, Woods Institute for the Environment, and Freeman Spogli Institute for International Studies at Stanford University, and the National Geographic Society.</div></div>","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 7","pages":"Article 101273"},"PeriodicalIF":21.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144769146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Community-based heat adaptation interventions for improving heat literacy, behaviours, and health outcomes: a systematic review 以社区为基础的热适应干预措施改善热素养、行为和健康结果:一项系统综述。
IF 21.6 1区 医学
Lancet Planetary Health Pub Date : 2025-07-01 DOI: 10.1016/S2542-5196(25)00007-5
Hamimatunnisa Johar PhD , Fatima Ibrahim Abdulsalam PhD , Prof Yuming Guo PhD , Prof Till Baernighausen PhD , Nowrozy Kamar Jahan PhD , Jessica Watterson PhD , Prof Karin Leder PhD , Darwin Gouwanda PhD , Prof G R Letchuman Ramanathan MMed , Prof Kenneth Kwing Chin Lee PhD , Norlen Mohamed MPH , Thahirahtul Asma' Zakaria MPH , Sandra Barteit PhD , Prof Tin Tin Su PhD
{"title":"Community-based heat adaptation interventions for improving heat literacy, behaviours, and health outcomes: a systematic review","authors":"Hamimatunnisa Johar PhD ,&nbsp;Fatima Ibrahim Abdulsalam PhD ,&nbsp;Prof Yuming Guo PhD ,&nbsp;Prof Till Baernighausen PhD ,&nbsp;Nowrozy Kamar Jahan PhD ,&nbsp;Jessica Watterson PhD ,&nbsp;Prof Karin Leder PhD ,&nbsp;Darwin Gouwanda PhD ,&nbsp;Prof G R Letchuman Ramanathan MMed ,&nbsp;Prof Kenneth Kwing Chin Lee PhD ,&nbsp;Norlen Mohamed MPH ,&nbsp;Thahirahtul Asma' Zakaria MPH ,&nbsp;Sandra Barteit PhD ,&nbsp;Prof Tin Tin Su PhD","doi":"10.1016/S2542-5196(25)00007-5","DOIUrl":"10.1016/S2542-5196(25)00007-5","url":null,"abstract":"<div><div>Anthropogenic climate change, resulting in a continuous rise of global temperature, has detrimental effects on human health, particularly among vulnerable populations, such as individuals with low income, older adults, and people with pre-existing health conditions. To reduce the heat-related health consequences, effective interventions targeting community members, especially vulnerable populations, are paramount. This systematic review aims to identify and evaluate the effectiveness of community-based heat adaptation behavioural interventions aimed at improving heat literacy, promoting adaptive behaviours, and enhancing health outcomes amid rising global temperatures. In this systematic review, peer-reviewed English-language articles focused on community-based heat adaptation intervention studies published in PubMed, MEDLINE via Ovid, Embase, CINAHL, Scopus, and Web of Science from database inception to Jan 1, 2024, were retrieved and reported according to the PRISMA 2020 guidelines. The quality of the articles was evaluated with the use of a mixed-methods appraisal tool. The analysis synthesised intervention effectiveness across multiple outcome domains measurable at both individual and household levels, identified key factors influencing successful implementation, and highlighted areas for future research. The initial search yielded 1266 articles, of which ten were finally included. The majority of the included studies (n=7) were from high-income countries. Most intervention modules focused on preventive measures during heat exposure, whereas only a few addressed information on disease mechanisms, risk factors, and monitoring environmental changes. Although most studies reported significant improvements in heat literacy and a reduction in heat-related symptoms, the evidence for behavioural changes and health outcomes was mixed. Our review reveals methodological shortcomings, as none of the included studies incorporated heat literacy frameworks, behavioural theory, or participatory approaches to include community input throughout the research. Our findings highlight the need for a comprehensive approach that incorporates frameworks to enhance intervention effectiveness and improve public health resilience amid rising global temperatures. Culturally appropriate community-led interventions and integration of digital tools are promising avenues for increasing uptake of interventions. This study is registered with PROSPERO (CRD42024514188).</div></div>","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 7","pages":"Article 101207"},"PeriodicalIF":21.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144042460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Severe flooding and cause-specific hospitalisation among older adults in the USA: a retrospective matched cohort analysis 美国老年人的严重洪水和原因特异性住院:一项回顾性匹配队列分析。
IF 21.6 1区 医学
Lancet Planetary Health Pub Date : 2025-07-01 DOI: 10.1016/S2542-5196(25)00132-9
Sarika Aggarwal MA , Jie K Hu PhD , Jonathan A Sullivan PhD , Robbie M Parks PhD , Rachel C Nethery PhD
{"title":"Severe flooding and cause-specific hospitalisation among older adults in the USA: a retrospective matched cohort analysis","authors":"Sarika Aggarwal MA ,&nbsp;Jie K Hu PhD ,&nbsp;Jonathan A Sullivan PhD ,&nbsp;Robbie M Parks PhD ,&nbsp;Rachel C Nethery PhD","doi":"10.1016/S2542-5196(25)00132-9","DOIUrl":"10.1016/S2542-5196(25)00132-9","url":null,"abstract":"<div><h3>Background</h3><div>Floods are the most common climate-related disaster; yet previous studies have investigated the impact of floods on only a few health outcomes in narrow spatiotemporal settings. We aimed to assess the association between severe flood exposure and cause-specific hospitalisation rates in adults older than 65 years in the contiguous USA.</div></div><div><h3>Methods</h3><div>In this retrospective matched cohort analysis, we obtained inpatient claims data from Medicare fee-for-service beneficiaries older than 65 years living in the contiguous USA from Jan 1, 2000, to Dec 31, 2016. From each inpatient hospitalisation record, we extracted the admission date, primary International Classification of Diseases, 9th revision, clinical modification (ICD-9-CM) code (or 10th revision [ICD-10-CM] code on or after Oct 1, 2015), and self-reported residential ZIP code. Hospitalisation data were linked with satellite-based, high-resolution historical flood maps from the Global Flood Database by ZIP code. Days during and shortly after a flood exposure were matched to non-flood-affected control days by ZIP code and day-of-year. We estimated relative percentage changes in hospitalisation rates for 13 mutually exclusive, well-defined disease categories during and in the 4 weeks following flood exposure with conditional quasi-Poisson regression models.</div></div><div><h3>Findings</h3><div>This study captured 72 major flood events and included over 4·5 million hospitalisations occurring over a 17-year period. We observed elevated rates of hospitalisation on average during and following flood exposure for skin diseases (3·1% [95% CI 1·4 to 4·9]), nervous system diseases (2·5% [1·0 to 4·1]), musculoskeletal system diseases (1·3% [0·3 to 2·3]), and injuries or poisoning (1·1% [0·2 to 2·0]). Communities with lower proportions of Black residents experienced exacerbated flood effects for nervous system diseases (7·6% [95% CI 2·8 to 12·6]), whereas skin diseases (6·1% [1·9 to 10·5]) and mental health-related impacts (3·0% [–0·3 to 6·5]) were more pronounced for areas with larger percentages of Black residents during flood exposure.</div></div><div><h3>Interpretation</h3><div>Among adults older than 65 years, exposure to severe flood events was associated with increased hospitalisation rates for skin diseases, nervous system diseases, musculoskeletal system diseases, and injuries. Different patterns of hospital admission persisted for populations with higher versus lower proportions of Black residents. Our findings indicate a need for targeted flood-specific preparedness and adaptation strategies for socially vulnerable populations, including older individuals and racially minoritised communities.</div></div><div><h3>Funding</h3><div>National Institutes of Health, Harvard Data Science Initiative, and Alfred P Sloan Foundation.</div></div>","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 7","pages":"Article 101268"},"PeriodicalIF":21.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144769148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The True Cost Of Bottom Trawling In Europe 欧洲海底拖网捕捞的真实成本。
IF 21.6 1区 医学
Lancet Planetary Health Pub Date : 2025-07-01 DOI: 10.1016/S2542-5196(25)00134-2
Vijay Shankar Balakrishnan
{"title":"The True Cost Of Bottom Trawling In Europe","authors":"Vijay Shankar Balakrishnan","doi":"10.1016/S2542-5196(25)00134-2","DOIUrl":"10.1016/S2542-5196(25)00134-2","url":null,"abstract":"","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 7","pages":"Article 101270"},"PeriodicalIF":21.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144144081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to Lancet Planet Health 2025; 9: e236-44. 《柳叶刀地球健康2025》的更正;9: e236-44。
IF 24.1 1区 医学
Lancet Planetary Health Pub Date : 2025-06-06 DOI: 10.1016/j.lanplh.2025.05.002
{"title":"Correction to Lancet Planet Health 2025; 9: e236-44.","authors":"","doi":"10.1016/j.lanplh.2025.05.002","DOIUrl":"https://doi.org/10.1016/j.lanplh.2025.05.002","url":null,"abstract":"","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":" ","pages":""},"PeriodicalIF":24.1,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144259149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Planetary Health Research Digest 行星健康研究文摘
IF 24.1 1区 医学
Lancet Planetary Health Pub Date : 2025-06-01 DOI: 10.1016/j.lanplh.2025.05.006
Cahal McQuillan
{"title":"Planetary Health Research Digest","authors":"Cahal McQuillan","doi":"10.1016/j.lanplh.2025.05.006","DOIUrl":"10.1016/j.lanplh.2025.05.006","url":null,"abstract":"","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 6","pages":"Page e451"},"PeriodicalIF":24.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144261394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimates of submicron particulate matter (PM1) concentrations for 1998–2022 across the contiguous USA: leveraging measurements of PM1 with nationwide PM2·5 component data 1998-2022年美国亚微米颗粒物(PM1)浓度估算:利用全国PM2·5成分数据测量PM1
IF 24.1 1区 医学
Lancet Planetary Health Pub Date : 2025-06-01 DOI: 10.1016/S2542-5196(25)00094-4
Chi Li PhD , Prof Randall V Martin PhD , Aaron van Donkelaar PhD , Prof Jose L Jimenez PhD , Prof Qi Zhang PhD , Prof Jay R Turner DSc , Xuan Liu PhD , Mark Rowe MA , Jun Meng PhD , Wuyue Yu PhD , Prof George D Thurston ScD
{"title":"Estimates of submicron particulate matter (PM1) concentrations for 1998–2022 across the contiguous USA: leveraging measurements of PM1 with nationwide PM2·5 component data","authors":"Chi Li PhD ,&nbsp;Prof Randall V Martin PhD ,&nbsp;Aaron van Donkelaar PhD ,&nbsp;Prof Jose L Jimenez PhD ,&nbsp;Prof Qi Zhang PhD ,&nbsp;Prof Jay R Turner DSc ,&nbsp;Xuan Liu PhD ,&nbsp;Mark Rowe MA ,&nbsp;Jun Meng PhD ,&nbsp;Wuyue Yu PhD ,&nbsp;Prof George D Thurston ScD","doi":"10.1016/S2542-5196(25)00094-4","DOIUrl":"10.1016/S2542-5196(25)00094-4","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Background&lt;/h3&gt;&lt;div&gt;Excess health risk estimates of exposure per unit mass concentration of fine particulate matter (PM&lt;sub&gt;2·5&lt;/sub&gt;) still exhibit a wide range, potentially due to variations in aerosol size and composition. Submicron particulate matter (PM&lt;sub&gt;1&lt;/sub&gt;) was recently reported to exert stronger health impacts than PM&lt;sub&gt;2·5&lt;/sub&gt; from studies in China, but an absence of long-term PM&lt;sub&gt;1&lt;/sub&gt; data in the USA has prohibited such investigations despite a wealth of cohorts. This study aims to fill this data gap and estimate PM&lt;sub&gt;1&lt;/sub&gt; concentrations over 1998–2022 across the USA.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Methods&lt;/h3&gt;&lt;div&gt;We estimated biweekly gapless ambient PM&lt;sub&gt;1&lt;/sub&gt; concentrations and their uncertainties at 1 km&lt;sup&gt;2&lt;/sup&gt; resolution across the contiguous USA over the 25-year period of 1998–2022, from hybrid estimates of PM&lt;sub&gt;2·5&lt;/sub&gt; chemical composition that merged information from satellite retrievals, air quality modelling, and ground-based monitoring. The mass fractions of PM&lt;sub&gt;2·5&lt;/sub&gt; components with diameters below 1 μm were constrained by observations for four major components and from established scientific understanding for the other components.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Findings&lt;/h3&gt;&lt;div&gt;PM&lt;sub&gt;1&lt;/sub&gt; concentrations exhibited pronounced spatial variation across the contiguous USA with enhancements observed in the east, major urban and industrial areas, and areas affected by wildfires; low concentrations are prevalent over the arid west. The main components of population-weighted mean (PWM) PM&lt;sub&gt;1&lt;/sub&gt; in 2022 (6·1 μg/m&lt;sup&gt;3&lt;/sup&gt;) were organic matter (47%), sulphate (22%), nitrate (12%), black carbon (8%), and ammonium (7%). The biweekly PM&lt;sub&gt;1&lt;/sub&gt; estimates were highly consistent with independent ground-based PM&lt;sub&gt;1&lt;/sub&gt; measurements (slope=0·96, &lt;em&gt;R&lt;/em&gt;&lt;sup&gt;2&lt;/sup&gt;=0·78). The estimated 1-σ uncertainties of annual mean PM&lt;sub&gt;1&lt;/sub&gt; for the 25 years over more than 8 million land pixels were less than 20% for 98% of data points, while 0·3% of the population of the contiguous USA was associated with uncertainties of more than 30% due to wildfires. The PWM PM&lt;sub&gt;1&lt;/sub&gt; decreased significantly (p&lt;em&gt;&lt;&lt;/em&gt;0·0001) at a rate of –0·23 μg/m&lt;sup&gt;3&lt;/sup&gt; per year during 1998–2022, accounting for 86% of the overall reduction of PWM PM&lt;sub&gt;2·5&lt;/sub&gt;; the PWM PM&lt;sub&gt;1&lt;/sub&gt;/PM&lt;sub&gt;2·5&lt;/sub&gt; ratio experienced simultaneous decrease (–0·0013 per year, p&lt;em&gt;&lt;&lt;/em&gt;0·0001).&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Interpretation&lt;/h3&gt;&lt;div&gt;The dominance of PM&lt;sub&gt;1&lt;/sub&gt; in PM&lt;sub&gt;2·5&lt;/sub&gt; reduction and the decreasing PM&lt;sub&gt;1&lt;/sub&gt;/PM&lt;sub&gt;2·5&lt;/sub&gt; ratio reflect the strong association of PM&lt;sub&gt;1&lt;/sub&gt; with fossil fuel and other combustion sources and their responses to air quality regulations during the 25-year study period. The gradual coarsening of PM&lt;sub&gt;2·5&lt;/sub&gt; calls for increasing urgency to separately assess health impacts of PM&lt;sub&gt;1&lt;/sub&gt; versus PM&lt;sub&gt;2·5&lt;/sub&gt;, as supported by the quality of the derived P","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 6","pages":"Pages e491-e502"},"PeriodicalIF":24.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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