{"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}
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 , 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","doi":"10.1016/S2542-5196(25)00094-4","DOIUrl":"10.1016/S2542-5196(25)00094-4","url":null,"abstract":"<div><h3>Background</h3><div>Excess health risk estimates of exposure per unit mass concentration of fine particulate matter (PM<sub>2·5</sub>) still exhibit a wide range, potentially due to variations in aerosol size and composition. Submicron particulate matter (PM<sub>1</sub>) was recently reported to exert stronger health impacts than PM<sub>2·5</sub> from studies in China, but an absence of long-term PM<sub>1</sub> data in the USA has prohibited such investigations despite a wealth of cohorts. This study aims to fill this data gap and estimate PM<sub>1</sub> concentrations over 1998–2022 across the USA.</div></div><div><h3>Methods</h3><div>We estimated biweekly gapless ambient PM<sub>1</sub> concentrations and their uncertainties at 1 km<sup>2</sup> resolution across the contiguous USA over the 25-year period of 1998–2022, from hybrid estimates of PM<sub>2·5</sub> chemical composition that merged information from satellite retrievals, air quality modelling, and ground-based monitoring. The mass fractions of PM<sub>2·5</sub> components with diameters below 1 μm were constrained by observations for four major components and from established scientific understanding for the other components.</div></div><div><h3>Findings</h3><div>PM<sub>1</sub> 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<sub>1</sub> in 2022 (6·1 μg/m<sup>3</sup>) were organic matter (47%), sulphate (22%), nitrate (12%), black carbon (8%), and ammonium (7%). The biweekly PM<sub>1</sub> estimates were highly consistent with independent ground-based PM<sub>1</sub> measurements (slope=0·96, <em>R</em><sup>2</sup>=0·78). The estimated 1-σ uncertainties of annual mean PM<sub>1</sub> 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<sub>1</sub> decreased significantly (p<em><</em>0·0001) at a rate of –0·23 μg/m<sup>3</sup> per year during 1998–2022, accounting for 86% of the overall reduction of PWM PM<sub>2·5</sub>; the PWM PM<sub>1</sub>/PM<sub>2·5</sub> ratio experienced simultaneous decrease (–0·0013 per year, p<em><</em>0·0001).</div></div><div><h3>Interpretation</h3><div>The dominance of PM<sub>1</sub> in PM<sub>2·5</sub> reduction and the decreasing PM<sub>1</sub>/PM<sub>2·5</sub> ratio reflect the strong association of PM<sub>1</sub> 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<sub>2·5</sub> calls for increasing urgency to separately assess health impacts of PM<sub>1</sub> versus PM<sub>2·5</sub>, 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}
Joel Millward-Hopkins PhD , Prof Jason Hickel PhD , Suryadeepto Nag MS
{"title":"Is growth in consumption occurring where it is most needed? An empirical analysis of current energy and material trends","authors":"Joel Millward-Hopkins PhD , Prof Jason Hickel PhD , Suryadeepto Nag MS","doi":"10.1016/S2542-5196(25)00115-9","DOIUrl":"10.1016/S2542-5196(25)00115-9","url":null,"abstract":"<div><h3>Background</h3><div>Increasing global use of energy and materials is breaching planetary boundaries, but large inequalities mean that billions of people still cannot meet basic needs. Researchers have estimated minimum energy and material requirements to secure human wellbeing. However, it remains unclear whether countries with shortfalls in energy and material use are increasing their consumption towards sufficient levels, and whether countries with surplus consumption are reducing theirs to sustainable levels.</div></div><div><h3>Methods</h3><div>In this empirical modelling study, we compared large datasets of national energy and material footprints with estimates of the energy and material required for each country to bring its poorest populations up to decent living standards (DLS). We then estimated the share of countries that are in shortfall and in surplus, for both energy and material consumption, and assessed to what degree countries are moving in the right direction, given existing growth rates. For countries with consumption shortfalls, we calculated the time it will take, at current growth rates, to reach energy and material use sufficient for DLS.</div></div><div><h3>Findings</h3><div>The world currently uses more energy and materials than is required to achieve DLS for all (approximately 2·5 times more), even with existing within-country distributions (approximately 1·5 times more). However, 50% of nations currently have energy shortfall, and 46% have material shortfall. For most of these countries, growth in energy and material use is too slow to achieve DLS by 2050. Indeed, with current growth rates and national inequalities, at least one in five countries will remain in shortfall in 2100. By contrast, the growth rates of countries in surplus are four times higher than the growth rates of countries in shortfall, exacerbating ecological pressures.</div></div><div><h3>Interpretation</h3><div>Currently, the world is not moving towards a just and ecological future for all. Growth in energy and material use is occurring primarily in countries that do not need it and is not occurring fast enough (or is declining) in countries that do need it. A substantial redistribution of energy and material use is needed—both within countries and between them—to achieve faster progress on DLS with less ecological pressure. Indeed, this redistribution is imperative if we are to achieve DLS for all while also achieving the Paris Agreement objectives. Convergence between the Global North and South is necessary but is not occurring fast enough. At current rates, convergence will not occur within the next 100 years.</div></div><div><h3>Funding</h3><div>European Research Council.</div></div>","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 6","pages":"Pages e503-e510"},"PeriodicalIF":24.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262039","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}
Federica Montana PhD , Natalie Mueller PhD , Evelise Pereira Barboza PhD , Sasha Khomenko PhD , Tamara Iungman PhD , Marta Cirach MSc , Carolyn Daher MPH , TC Chakraborty PhD , Kees de Hoogh PhD , Alice Battiston PhD , Rossano Schifanella PhD , Prof Mark Nieuwenhuijsen PhD
{"title":"Building a Healthy Urban Design Index (HUDI): how to promote health and sustainability in European cities","authors":"Federica Montana PhD , Natalie Mueller PhD , Evelise Pereira Barboza PhD , Sasha Khomenko PhD , Tamara Iungman PhD , Marta Cirach MSc , Carolyn Daher MPH , TC Chakraborty PhD , Kees de Hoogh PhD , Alice Battiston PhD , Rossano Schifanella PhD , Prof Mark Nieuwenhuijsen PhD","doi":"10.1016/S2542-5196(25)00109-3","DOIUrl":"10.1016/S2542-5196(25)00109-3","url":null,"abstract":"<div><h3>Background</h3><div>As global urbanisation accelerates, alongside declining environmental quality and increasing climate challenges, it is increasingly vital for urban planners and policy makers to integrate health and wellbeing considerations into urban planning. This study introduces the Healthy Urban Design Index (HUDI), a high-resolution spatial index developed for European cities. HUDI combines policy-relevant indicators related to urban design, sustainable transportation, environmental quality, and greenspace accessibility—key factors influencing human health and well-being. Unlike existing indices, which often focus on few or large metropolitan cities and lack spatial granularity, HUDI offers high resolution and extends its scope to small-sized and medium-sized cities, home to over 50% of Europe's population.</div></div><div><h3>Methods</h3><div>We analysed 917 European cities in total, 916 cities and one larger city, on the basis of the 2018 Urban Audit database. Using open-source spatial data, we mapped cities at a fine 250 m grid cell scale. To compare cities effectively, we grouped them into five city clusters on the basis of population size, following the definition of the Organisation for Economic Co-operation and Development: large metropolitan (11), metropolitan (53), medium-sized (177) and small (638) cities, and small towns (38). A set of 13 indicators, across four overarching domains of urban design, sustainable transportation, environmental quality, and green space accessibility was calculated spatially at the 250 m grid cell scale and then aggregated to the city level. The 13 indicators were optimal dwelling density, compactness, mid-rise development, permeability, opportunity to walk, opportunity to cycle, public transport stops, air quality (PM<sub>2·5</sub> and NO<sub>2</sub>), surrounding greenness (Normalized Difference Vegetation Index), lower urban heat islands, universal access to green spaces, and access to large green spaces. To ensure comparability, all indicators were standardised on a scale from 0 to 10, considering data quality, indicator target levels, and specific evaluation criteria. The HUDI was then calculated by applying different weights to these indicators, allowing us to rank cities within their respective city size cluster. We visualised overall city performance using spider plots and did Local Moran's <em>I</em> and Local Indicators of Spatial Association analyses to pinpoint areas with poor urban planning. We did sensitivity tests and correlation analyses, incorporating external datasets where available, to validate our findings.</div></div><div><h3>Findings</h3><div>HUDI scores ranged from 2·9 to nearly 7 of 10, showing that there is still room for improvement in creating healthier urban environments across European cities. Larger metropolitan cities, particularly in northern Europe and parts of Spain, tended to score well in the urban design and sustainable transportation domains. In contra","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 6","pages":"Pages e511-e526"},"PeriodicalIF":24.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262040","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}
Liz Willetts MEM , Prof Lora E Fleming MD , Prof Elisa Morgera PhD
{"title":"Biodiversity, health science, and the human right to a healthy environment","authors":"Liz Willetts MEM , Prof Lora E Fleming MD , Prof Elisa Morgera PhD","doi":"10.1016/S2542-5196(25)00092-0","DOIUrl":"10.1016/S2542-5196(25)00092-0","url":null,"abstract":"<div><div>Planetary health agendas need a strong human rights focus. Both public health and the human right to a clean, healthy, and sustainable environment depend on biodiversity, ecosystems, and a healthy biosphere. Targeted transdisciplinary health research, action, and communication on biodiversity–health linkages can clarify and reinforce the human rights obligations of public authorities whose decisions might negatively affect the environment. However, our observations across law, policy, science, and advocacy show that there is a void of transdisciplinary guidance on how to apply the human right to a healthy environment to impact policy and law. We introduce a biodiversity–health roadmap to the UN <em>Framework Principles on Human Rights and the Environment</em>. This roadmap is only a starting point to co-develop and mobilise knowledge and policy-driven research and action agendas across the health–environment nexus, and among science, policy, and law professionals. In this Personal View, we invite knowledge co-development among health and environmental sciences, environmental law, human rights, and policy advisors to steer, mobilise, and focus the health–environment nexus on human rights to support more effective and coherent public decisions.</div></div>","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 6","pages":"Pages e553-e565"},"PeriodicalIF":24.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144261392","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}
{"title":"Property insurance bluelining as a social determinant of health","authors":"Jerel M Ezell","doi":"10.1016/S2542-5196(25)00113-5","DOIUrl":"10.1016/S2542-5196(25)00113-5","url":null,"abstract":"","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 6","pages":"Pages e449-e450"},"PeriodicalIF":24.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144095807","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}
Laura Gómez-Herrera MD , Yu Zhao MPH , Ioar Rivas PhD , Elisenda Eixarch PhD , Carla Domínguez-Gallardo MD PhD , Toni Galmes MSc , Marta Muniesa MD , Maria Julia Zanini MD , Alan Domínguez MPH , Marta Cirach MSc , Prof Mark Nieuwenhuijsen PhD , Xavier Basagaña PhD , Xavier Querol PhD , Maria Foraster PhD , Mariona Bustamante PhD , Jesus Pujol MD , Mireia Gascon PhD , Elisa Llurba MD PhD , María Dolores Gómez-Roig MD PhD , Payam Dadvand PhD , Prof Jordi Sunyer PhD
{"title":"Air pollution and fetal brain morphological development: a prospective cohort study","authors":"Laura Gómez-Herrera MD , Yu Zhao MPH , Ioar Rivas PhD , Elisenda Eixarch PhD , Carla Domínguez-Gallardo MD PhD , Toni Galmes MSc , Marta Muniesa MD , Maria Julia Zanini MD , Alan Domínguez MPH , Marta Cirach MSc , Prof Mark Nieuwenhuijsen PhD , Xavier Basagaña PhD , Xavier Querol PhD , Maria Foraster PhD , Mariona Bustamante PhD , Jesus Pujol MD , Mireia Gascon PhD , Elisa Llurba MD PhD , María Dolores Gómez-Roig MD PhD , Payam Dadvand PhD , Prof Jordi Sunyer PhD","doi":"10.1016/S2542-5196(25)00093-2","DOIUrl":"10.1016/S2542-5196(25)00093-2","url":null,"abstract":"<div><h3>Background</h3><div>There is a scarcity of evidence of the influence of exposure to air pollution during pregnancy on the human fetal brain characterised prenatally. We aimed to evaluate the association of exposure to air pollution with fetal brain morphology.</div></div><div><h3>Methods</h3><div>In this prospective cohort study, we used data from the Barcelona Life Study Cohort, Spain, which recruited 1080 pregnant women at 8–14 weeks of gestation between Oct 16, 2018, and April 14, 2021, from three major university hospitals in Barcelona. Eligible participants were aged 18–45 years, had a singleton pregnancy, and had a fetus without major congenital anomalies. Third-trimester transvaginal neurosonography was applied to evaluate fetal brain morphological development. We integrated comprehensive data on time–activity patterns with land use regression, dispersion, and hybrid models to estimate exposure to NO<sub>2</sub>, PM<sub>2·5</sub>, and black carbon at home, workplace, and commuting routes during pregnancy until the neurosonography date. Single-pollutant linear mixed regression models and multipollutant ridge regression models were applied to estimate the associations between air pollutants and fetal brain outcomes, controlled for confounders. Distributed lag linear models were used to identify the vulnerable windows.</div></div><div><h3>Findings</h3><div>Among 1080 participants recruited at baseline, 954 attended the follow-up for the neurosonographic examination, 754 of whom were included in this study. In single-pollutant models, we found that prenatal exposure to NO<sub>2</sub>, PM<sub>2·5</sub>, and black carbon was associated with a wider anterior horn of lateral ventricles, wider cisterna magna, and larger cerebellar vermis. We also observed that higher exposure to black carbon was related to a shallower Sylvian fissure. No clear pattern or associations were observed between air pollution and other structures of brain morphology. Multipollutant models showed that these associations with black carbon remained significant, whereas associations with PM<sub>2·5</sub> and NO<sub>2</sub> lost significance for some indicators. A potential vulnerability window in mid-to-late pregnancy was identified for these associations.</div></div><div><h3>Interpretation</h3><div>Exposure to air pollution might affect brain morphological development as early as the fetal stage. Our findings could have important policy implications as they highlight the need to mitigate exposure of pregnant individuals to air pollution in urban areas to protect fetal brain development.</div></div><div><h3>Funding</h3><div>European Research Council.</div></div>","PeriodicalId":48548,"journal":{"name":"Lancet Planetary Health","volume":"9 6","pages":"Pages e480-e490"},"PeriodicalIF":24.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262037","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}