Science of the Total Environment最新文献_第6页

Exceedance probability model for predicting the frequency of summer hot day patterns and temperature variability in Florida 预测佛罗里达州夏季高温日模式频率和气温变化的超常概率模型

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment

Pub Date : 2025-03-03 DOI: 10.1016/j.scitotenv.2025.179000

Amirreza Nemati Mansour , Golmar Golmohammadi , Saman Javadi , Kourosh Mohammadi , Ramesh Rudra , Seyed Mostafa Biazar , Aminreza Neshat

Global warming presents an urgent environmental challenge, marked by disrupted climate patterns, increased flooding and droughts, reduced biodiversity, and accelerated species extinction rates. Our study offers a detailed analysis and estimation of hot summer days (HD) patterns and examines their association with Summer Daily Maximum Temperature (SDMT). Employing a estimation model grounded in the normal distribution of temperature records, the exceedance probability of HD occurrences was estimated. The study also applies the K-means clustering algorithm to categorize meteorological stations, enabling a deeper understanding of regional variances and warming trends. To show the applicability of the proposed methodology, 28 meteorological stations in the State of Florida, USA, were selected for the period from 1959 to 2022. The results revealed a significant increase of approximately 0.12 °C in Florida's average Maximum temperature over the past decades, coupled with an average rise of 2.5 HD per decade. Geographical analysis identifies the north and some central as the most affected regions with the highest rise in SDMT, while the parts of central and western show the most substantial increase in HD during summer. The data conclusively indicates that as average SDMTs increase, the frequency of HD escalates dramatically. Projections up to the year 2050 suggest a continued rise in HD across Florida, classified into three severity categories: severe, moderate, and mild. These findings underscore the critical implications of global warming on the frequency of hot days in Florida, necessitating urgent and effective climate change mitigation strategies.

全球变暖带来了紧迫的环境挑战，其特点是气候模式紊乱、洪涝和干旱加剧、生物多样性减少以及物种灭绝速度加快。我们的研究对夏季高温日（HD）模式进行了详细分析和估算，并研究了其与夏季日最高气温（SDMT）之间的关联。采用基于温度记录正态分布的估算模型，估算了高温日出现的超常概率。该研究还应用 K-means 聚类算法对气象站进行分类，从而加深对区域差异和变暖趋势的理解。为了证明所提方法的适用性，研究人员选取了美国佛罗里达州 1959 年至 2022 年期间的 28 个气象站。结果显示，在过去几十年中，佛罗里达州的平均最高气温大幅上升了约 0.12 °C，平均每十年上升 2.5 HD。地域分析表明，北部和中部部分地区受影响最大，SDMT 升幅最高，而中部和西部部分地区夏季 HD 升幅最大。数据确凿地表明，随着平均 SDMT 的增加，HD 的频率也急剧上升。预计到 2050 年，佛罗里达州的 HD 将继续增加，严重程度分为三类：重度、中度和轻度。这些发现强调了全球变暖对佛罗里达州高温日频率的重要影响，因此必须采取紧急、有效的气候变化减缓战略。

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引用次数: 0

Broad ecological threats of an invasive hornet revealed through a deep sequencing approach.

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment

Pub Date : 2025-03-03 DOI: 10.1016/j.scitotenv.2025.178978

Siffreya Pedersen, Peter J Kennedy, Thomas A O'Shea-Wheller, Juliette Poidatz, Alastair Christie, Juliet L Osborne, Charles R Tyler

Most terrestrial invertebrates are in considerable decline, and the range expansion of the invasive hornet, Vespa velutina nigrithorax, poses an additional threat. Although now found in much of western Europe, the full extent of the hornet's predatory activity remains unexplored. While impacts on honey bees are well-documented, evidence of a wider dietary spectrum is emerging, indicating potentially broad ecological ramifications. Here, we conduct the first large-scale study of the diet of V. velutina, utilising deep sequencing to characterise the larval gut contents of over 1500 samples from Jersey, France, Spain, and the UK. Our results indicate that V. velutina is a highly flexible predator, enabling its continued range expansion capacity. Analyses detected 1449 taxa, with greater prey richness in samples from southern latitudes, and considerable spatiotemporal variation in dietary composition. Hymenoptera, Diptera, Hemiptera, Coleoptera, Lepidoptera, and Araneae were the most frequently occurring orders predated, each characterised by high taxonomic diversity. The honey bee Apis mellifera was the most abundant species, being found in all sampled nests and showing greater relative read numbers with increasing apiary density and proximity, supporting concerns for the impact of V. velutina on apiculture. Notably, 43 of the 50 most commonly predated invertebrates were also flower visitors, including 4 common bumblebee species, indicating potentially substantial risks to wild pollinators. These data provide wide and deep evidence to support risk evaluation of this species and its potential environmental impact as it spreads across Europe.

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引用次数: 0

Metal(loid) mobility, solid-phase speciation and in vitro bioaccessibility in European hard-rock lithium (Li) deposits

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment

Pub Date : 2025-03-03 DOI: 10.1016/j.scitotenv.2025.178992

Quentin Bollaert , Elvira Vassilieva , Sonja Lavikko , Fernando Prado Araujo , Quentin Dehaine , Valérie Cappuyns

The European Union (EU) lags in lithium (Li) production despite having substantial resources in pegmatites and rare-metal granites. To address this, the European Commission has encouraged Li mining in Europe. However, there is limited information about the potential environmental and human-health impacts associated with Li mining from these lithologies. In this study, we assess the mobility, solid-phase speciation, and in vitro bioaccessibility of metal(loid)s by combining a series of leaching tests with mineralogical analyses on Li-rich ore and process samples. Despite relatively high concentrations of metal(loid)s such as As, Cr, Ni, and Zn, laboratory leaching tests simulating weathering under environmental conditions reveal generally low mobility for most metal(loid)s, much lower than the reference thresholds. Lithium, for which no threshold values are currently available, exhibits higher mobility (up to ca. 62 mg/kg in the toxicity characteristic leaching procedure) due to the greater alterability of Li minerals. Spatially-resolved mineralogical analyses and pH-dependent leaching tests reveal that metal(loid)s are primarily hosted in sulfides (arsenopyrite, chalcopyrite, sphalerite) and chromite. Detailed in situ mineralogical investigations using LA-ICP-MS demonstrate the presence of metal(loid)s as traces in common silicates (biotite, muscovite) and fluorapatite, underscoring the complexity of metal(loid) solid-phase speciation in these materials. The in vitro oral bioaccessibility of the metal(loid)s is low to moderate (< 35 %). Inverse geochemical modeling indicates that the mobility of metal(loid)s primarily results from the dissolution of silicates and phosphates containing low amounts of metal(loid)s at low pH (0.5–2). The metal(loid) in vitro gastric bioaccessibility also stems from the dissolution of these minerals with low metal(loid) contents. Non-carcinogenic and carcinogenic risk assessments corrected for in vitro bioaccessibility indicate low health risks. However, given the limited knowledge on Li (eco)toxicity, implementing the best practices for tailing managements is warranted to limit human and environmental exposure.

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引用次数: 0

Does the new European Union air quality directive really protect health? A nationwide case study in Spain

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment

Pub Date : 2025-03-03 DOI: 10.1016/j.scitotenv.2025.179002

C. Linares, J. Díaz, M.A. Navas, J.A. López-Bueno

In October 2024, the European Union (EU) issued a Directive establishing a series of limit values, which, once transposed into national law by EU Member States, will become mandatory. This Directive is less restrictive than the WHO guideline values published in 2021.

Using dose-response functions specifically calculated for every Spanish province, this study sought to ascertain how many short-term, all-cause hospital emergency admissions (ICD-9: 1-799 and ICD-10: A00-R99) were attributable to NO₂, PM₁₀ and PM_2.5 concentrations across the period 2013-2018, and what the ensuing reduction in admissions would be, if the EU Directive and WHO guideline values were applied respectively.

The results obtained indicate that here in Spain some 38,790 admissions per year are attributable to NO₂, PM₁₀ and PM_2.5 pollution, at a total cost of €548 million. These admissions would be reduced by 478 (1.23 %) if the EU Directive were observed, and by 4496 (11.59 %) if the WHO guideline values were met.

While compliance with the EU limit values would have almost no effect in terms of a decrease in attributable admissions, such an effect would indeed be seen in the event of compliance with the WHO guideline values and would entail a saving of over €63 million nationwide. This study only focused on short-term effects of PM and NO₂.

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引用次数: 0

Low high-temperature tolerance of the hydrothermal vent crab Xenograpsus testudinatus: Thermal biochemistry, survival rate and histological analyses, and habitat investigations

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment

Pub Date : 2025-03-03 DOI: 10.1016/j.scitotenv.2025.179001

Li-Chun Tseng , Hong-Miao Chen , Chi Chou , Wen-Hung Twan , Yan-Ying Zhou , Lan Wang , Jiang-Shiou Hwang

Rising environmental temperatures increase stress on marine organisms, causing physiological damage or death in extreme cases. In this study, we examined the crab species Xenograpsus testudinatus from a shallow hydrothermal vent area in Kueishan Island, off northeast Taiwan. This crab species belongs to the monotypic family Xenograpsidae and is a well-known inhabitant of the shallow hydrothermal vents of Kueishan Island. The maximum temperature tolerance of X. testudinatus and the effects of temperature on this crab species remain unclear. Our laboratory experiments demonstrated the effects of elevated seawater temperatures on the survival and enzymatic function of X. testudinatus. Its mortality rate increased with the elevation of seawater temperature from 25 °C to 40 °C. Survival duration was short (<4 h) when the crabs were reared at 40 °C, and the lethal temperature (LT₅₀; death within 7 days of exposure) was 34.74 °C. The response of six enzymes varied with temperature. Significant differences of enzyme activities were noted among various temperature groups (25 °C, 30 °C, 30 °C, and 40 °C) in the gill, but no significant difference was noted in the hepatopancreas. A univariate analysis indicated the temperature level and exposure duration as key factors driving the variations in enzyme activity. A field investigation on the temperature of the seabed where the crabs aggregated revealed that the preferred temperature was <28 °C. Therefore, X. testudinatus does not prefer elevated temperatures. An expected combined effects of temperature tolerance and acidic, sulfuric-rich vent water on X. testudinatus is warrant further investigation.

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引用次数: 0

Climate shapes the spatial pattern in local β-diversity of alpine grasslands on the Tibetan Plateau

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment

Pub Date : 2025-03-03 DOI: 10.1016/j.scitotenv.2025.178977

Litong Chen , David A. Coomes , Jiuluan Wang , Xin Jing , Jin-Sheng He

Little is known about the structure of plant communities across the vast Tibetan Plateau, which supports at least 12,000 species of alpine vascular plants including over 2000 endemics. We recorded species abundance in 485 sites stretching across 6000 km of the plateau. At each site, species abundance was measured in three quadrats that were 40 m apart, allowing us to quantify local β-diversity within the site. We found that local β-diversity in alpine meadows and steppes was significantly higher than expected by chance, indicating intraspecific aggregation within the sites. After controlling for random sampling effects, the magnitude of local β-diversity varied across the plateau: there was a positive relationship from west to east corresponding to increased rainfall; there were hump-shaped relationships with elevation and latitude. These patterns were driven mainly by regional variation in climate, but also by local soil properties and grazing regimes (our structural equation models (SEMs) explained 27 % and 26 % of variation in alpine meadows and steppes, respectively). Unexpectedly, precipitation-related variables were the strongest predictors in cold-wet alpine meadows while temperature-related variables were the strongest predictors in dry-warm alpine steppes. Our findings support the hypothesis that environmental filtering is largely responsible for local β-diversity of alpine grasslands across the Tibetan Plateau. We discuss how these findings inform efforts to conserve fragile alpine ecosystems threatened by rapid climate warming and overgrazing.

{"title":"Climate shapes the spatial pattern in local β-diversity of alpine grasslands on the Tibetan Plateau","authors":"Litong Chen , David A. Coomes , Jiuluan Wang , Xin Jing , Jin-Sheng He","doi":"10.1016/j.scitotenv.2025.178977","DOIUrl":"10.1016/j.scitotenv.2025.178977","url":null,"abstract":"<div><div>Little is known about the structure of plant communities across the vast Tibetan Plateau, which supports at least 12,000 species of alpine vascular plants including over 2000 endemics. We recorded species abundance in 485 sites stretching across 6000 km of the plateau. At each site, species abundance was measured in three quadrats that were 40 m apart, allowing us to quantify local β-diversity within the site. We found that local β-diversity in alpine meadows and steppes was significantly higher than expected by chance, indicating intraspecific aggregation within the sites. After controlling for random sampling effects, the magnitude of local β-diversity varied across the plateau: there was a positive relationship from west to east corresponding to increased rainfall; there were hump-shaped relationships with elevation and latitude. These patterns were driven mainly by regional variation in climate, but also by local soil properties and grazing regimes (our structural equation models (SEMs) explained 27 % and 26 % of variation in alpine meadows and steppes, respectively). Unexpectedly, precipitation-related variables were the strongest predictors in cold-wet alpine meadows while temperature-related variables were the strongest predictors in dry-warm alpine steppes. Our findings support the hypothesis that environmental filtering is largely responsible for local β-diversity of alpine grasslands across the Tibetan Plateau. We discuss how these findings inform efforts to conserve fragile alpine ecosystems threatened by rapid climate warming and overgrazing.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"970 ","pages":"Article 178977"},"PeriodicalIF":8.2,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Naturally occurring asbestos in Southern Italy: Geological and mineralogical investigation of fibrous antigorite from Calabrian serpentinites in view of its hazard assessment

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment

Pub Date : 2025-03-03 DOI: 10.1016/j.scitotenv.2025.178970

J.R. Petriglieri , G. Capitani , P. Ballirano , L. Barale , F. Piana , M. Tomatis , M.C. Di Carlo , F. Gianchiglia , A. Campopiano , A. Olori , M.R. Bruno , M.R. Montereali , E. Nardi , M. Fantauzzi , A. Rossi , H. Skogby , E. Belluso , F. Turci , A. Pacella

In the last few decades, non-occupational asbestos-related diseases have been documented in populations living near naturally occurring asbestos (NOA) sites, including regions in Greece, Cyprus, China, New Caledonia, Turkey, and Italy. This highlights the critical need to assess geological and environmental hazards associated with NOA. Fibrous antigorite, among the >400 naturally occurring fibrous minerals, has emerged as a potential health and environmental hazard. This work examines the morphometrical, mineralogical and surface properties of a fibrous antigorite vein from a serpentinite body at San Mango D'Aquino (Calabria, Italy), relevant to assessing its potential toxicity. The geological site, described through field and petrographic analyses, was selected as representative of serpentinites outcropping over a large area in central Calabria. Results on the morphometric variation induced by a standardized mechanical stress, mineral solubility, and surface chemical reactivity indicated that: i) the fibrous morphology, expressed as % of WHO (World Health Organization) fibres, was largely preserved and consistent with asbestos standards; ii) antigorite fibres have a durability higher than chrysotile and close to a previously characterized fibrous antigorite from Val Varenna, Italy; iii) fibres showed a remarkable redox reactivity, even higher than chrysotile, suggesting that they may promote particle-derived radical imbalance in vitro and in vivo. Our findings revealed that the antigorite fibres from San Mango possess several critical properties commonly associated with asbestos toxicity. On this basis, we identify the NOA site of San Mango as a potential emission source of hazardous antigorite fibres, with significant environmental and public health implications for the surrounding communities.

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引用次数: 0

The impact of extreme temperatures on emergency department visits: A systematic review of heatwaves, cold waves, and daily temperature variations

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment

Pub Date : 2025-03-02 DOI: 10.1016/j.scitotenv.2025.178869

Ali PoshtMashhadi, Abtin Ijadi Maghsoodi, Lincoln C. Wood

Extreme temperature events increasingly challenge global public health systems, affecting both emergency department (ED) presentations and subsequent hospital admissions. Understanding these impacts on emergency healthcare utilization is critical for effective resource planning and public health preparedness. This systematic literature review, conducted following PRISMA guidelines, examines the influence of extreme temperature events on ED admissions. A comprehensive database search from 2012 to 2024 identified 42 relevant studies and two of them considered both heatwaves, coldwaves or temperature variation: 22 on heatwaves, 6 on cold waves, and 16 on temperature variations. Heatwaves are consistently associated with increased ED admissions for various health conditions, including orthopaedic trauma and exacerbations of chronic illnesses. At the same time, cold waves are linked primarily to respiratory and cardiovascular issues, often with delayed effects. Several studies indicate that older adults, those with pre-existing conditions, and socioeconomically disadvantaged populations may face disproportionately severe consequences during these events. Socio-demographic factors, including age, gender, socioeconomic status, and geographic location, significantly influence these outcomes. These findings highlight the differential impacts of extreme temperature events on ED utilization, emphasizing the importance of preparing EDs for post-event surges and advocating for coordinated emergency planning and targeted public health interventions to manage these challenges effectively.

Implications for public health

The findings of this study provide actionable insights for clinicians, academics, and policymakers to understand better the impact of extreme temperature events on emergency departments. This knowledge can guide the development of targeted public health strategies, enhance resource allocation, and strengthen healthcare systems to improve outcomes for vulnerable populations.

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引用次数: 0

Past and present bacterial communities in deglaciating northern latitude catchments reveal varied soil carbon sequestration potential

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment

Pub Date : 2025-03-01 DOI: 10.1016/j.scitotenv.2025.178723

Saule Akhmetkaliyeva , Andrew P. Dean , Leon J. Clarke , Simon J. Cook , Sharon Ruiz Lopez , Robert B. Sparkes

Glacier retreat in northern latitudes exposes new landscapes that may develop soils and ecosystems, which in turn may sequester carbon and serve as a negative climate change feedback. Proglacial soil development and landscape evolution were investigated using transects from three high-latitude glacial systems (Tarfala, Sweden; Vatnajökull, Iceland; Zackenberg, Greenland). Soil samples were analysed for organic carbon (OC) concentration, bacteriohopanepolyol biomarkers (BHPs, membrane lipids that trace major microbial groups), and 16S rRNA gene sequencing.

Soil and sediment samples from Sweden showed lower OC concentrations (0.27 ± 0.26 wt%) than deposits from Iceland (1.59 ± 2.12 wt%) and Greenland (1.62 ± 1.54 wt%). Highest OC concentrations were from moraines exposed for several millennia, while recently deglaciated areas in Sweden and Iceland had the lowest OC values. Higher fractional abundance of soil-specific BHPs down-valley (up to 30 % in Greenland), and matching increases in the R'_soil index (up to 0.37 in Greenland), suggest soils are gradually developing in recently deglaciated areas, with a stable soil microbial community observed in some soils from Iceland and Greenland.

Microbial communities stabilized quickly, adapting to the new environment. Acidobacteria, Actinobacteria, Chloroflexi, Proteobacteria, Planctomycetes, and Verrucomicrobia were the most relatively abundant phyla identified in deglaciated areas, while candidate phylum Dormibacteraeota had high concentrations in samples from Sweden. Linking organic biomarkers with bacterial communities suggests that soil-marker BHPs were produced by Rhodospirillaceae and may have been produced by Bradyrhizobiaceae and Hyphomicrobiaceae. However, despite some similarities in microbial communities, differences in soil development suggest that the evolution of deglaciating landscapes and their impact on the global carbon cycle may vary substantially.

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引用次数: 0

Pesticide contamination detected across five wildlife refuges in the Sacramento Valley of California

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment

Pub Date : 2025-03-01 DOI: 10.1016/j.scitotenv.2025.178991

Angie Lenard , Therese Burns , Michelle L. Hladik , Kaylene E. Keller , Samantha Marcum , Wayne E. Thogmartin , Matthew L. Forister

An important goal for the applied ecological sciences is to understand the extent to which the biodiversity on conserved or managed lands is exposed to anthropogenic stressors. Among the various categories of conserved lands in the United States, the National Wildlife Refuge System is focused on the protection and management of native wildlife and plant populations. Refuge lands can be associated with wetlands and, especially in California, tend to be near areas of intense human use, including agriculture. The proximity of refuges to cultivated lands results in potential exposure to pesticide drift, which increases the possibility of non-target effects on plants and wildlife. We used a passive sampler approach to quantify aerial pesticide deposition during 28 days in spring of 2023, across five refuges in the Sacramento Valley of California. Pesticides were detected across all refuges and plots within the study area, with 36 individual compounds identified, including insecticides, herbicides, and fungicides, from 176 silicone bands from 49 plots. Distance to agriculture was not an important predictor in our models for most indices of contamination. However, our models revealed that the nearest crop type was an important mediator of the importance of distance to agriculture, as fungicide contamination decreased with distance to agriculture only when orchards were the nearest crop type. The overall lack of distance effects suggests that the interior of refuges in the study area do not necessarily provide more protection from pesticides than refuge edges, although larger refuges could offer more protection. We currently lack information on how the level of contamination found herein is biologically relevant to wildlife, and ongoing monitoring efforts have found productive communities of insects in the study area. The results of this study provide a foundation for future investigations on refuges to analyze impacts of specific pesticide compounds on plants and wildlife.

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引用次数: 0