Isotopes in Environmental and Health Studies最新文献_第6页

Isotopes as recorders of environmental change. Special issue related to ESIR 2023 - Workshop XVI of the European Society for Isotope Research, Graz, Austria. 同位素作为环境变化的记录者。与ESIR 2023有关的特刊-奥地利格拉茨欧洲同位素研究学会第十六次讲习班。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2025-03-01 Epub Date: 2025-03-05 DOI: 10.1080/10256016.2025.2465449

Ana-Voica Bojar, Andrzej Pelc, Michael Ernst Böttcher

引用次数: 0

Different continuous freshwater contributions to submarine groundwater discharge at a coastal peatland, southern Baltic Sea. 波罗的海南部沿海泥炭地海底地下水排放的不同连续淡水贡献。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2025-03-01 Epub Date: 2024-11-11 DOI: 10.1080/10256016.2024.2422864

Anna-Kathrina Jenner, Rhodelyn Saban, Cátia M Ehlert von Ahn, Patricia Roeser, Iris Schmiedinger, Jürgen Sültenfuß, Anja Reckhardt, Michael Ernst Böttcher

{"title":"Different continuous freshwater contributions to submarine groundwater discharge at a coastal peatland, southern Baltic Sea.","authors":"Anna-Kathrina Jenner, Rhodelyn Saban, Cátia M Ehlert von Ahn, Patricia Roeser, Iris Schmiedinger, Jürgen Sültenfuß, Anja Reckhardt, Michael Ernst Böttcher","doi":"10.1080/10256016.2024.2422864","DOIUrl":"10.1080/10256016.2024.2422864","url":null,"abstract":"The impact of freshwater sources like surface river runoff and submarine groundwater discharge (SGD) on coastal waters is currently in focus of intense debate and investigation. One of the ongoing challenges in SGD research is the characterization and quantification of the freshwater endmember contributions to the subsurface mixing zone and their influences on element balance and biogeochemical transformations. Long-term investigations of the sediment porewater composition provide characterization and understanding of the physical, hydrological and biogeochemical processes controlling the substance exchanges. In this study, we focus on the hydrochemical and stable isotope (δ2H, δ18O) compositions of sediment porewaters along the coastline of a southern Baltic Sea peatland. Coastal surface water and groundwater dynamics were monitored at two coastal sites using 5-m-long stationary lances over a 5-year period.The vertical compositional gradients were used to extrapolate to zero-salinity (ZS) components applying a binary mixing model on the salinity and water isotope composition. The results characterize a subterranean estuary (STE) with three potential mixing endmembers: two fresh groundwaters and the brackish Baltic Sea. Tritium-helium (3H-3He) porewater dating gave ages of more than about 20 years for the freshwater components. The ZS components were compared with other SGD sites along the southern Baltic Sea and North Sea and highlight the importance of local SGD studies for a proper groundwater endmember characterization as basis to understand hydrological and biogeochemical developments at the land-ocean continuum in times of current climate change.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"42-60"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142620717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

New chloromethane preparation line for the stable chlorine isotope composition analysis. 用于稳定氯同位素成分分析的新型氯甲烷制备生产线。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2025-03-01 Epub Date: 2024-07-24 DOI: 10.1080/10256016.2024.2379414

Andrzej Pelc

引用次数: 0

Sulphur and oxygen stable isotopes in acid mine drainage impacted rivers of Meghalaya (India): deciphering the sulphide oxidation pathways. 印度梅加拉亚受酸性矿山排水影响河流中的硫和氧稳定同位素：解读硫化物氧化途径。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2025-03-01 Epub Date: 2025-02-05 DOI: 10.1080/10256016.2025.2456557

Vivek Kumar, Dibyendu Paul, Sudhir Kumar

{"title":"Sulphur and oxygen stable isotopes in acid mine drainage impacted rivers of Meghalaya (India): deciphering the sulphide oxidation pathways.","authors":"Vivek Kumar, Dibyendu Paul, Sudhir Kumar","doi":"10.1080/10256016.2025.2456557","DOIUrl":"10.1080/10256016.2025.2456557","url":null,"abstract":"Sulphur and oxygen stable isotopes of sulphate have been used to trace the sources of sulphur into aquatic systems. These isotopes have also been used to understand the transformation and fate of sulphur in the water bodies contaminated by AMD discharge from active and/or abandoned mines. Stable isotopes of oxygen in dissolved sulphate (δ18OSO4) and water (δ18OH2O) have helped to decipher the sulphide oxidation pathways and estimate their contributions. The present study is focused on analysing the composition of sulphur and oxygen stable isotopes of sulphate and oxygen stable isotope in AMD and Lunar-Lukha River water flowing through the coal mining area of the East Jaintia Hills District, Meghalaya, in order to decipher the sulphide oxidation pathways. The results showed that the sulphur stable isotope of sulphate (δ34SSO4) ranged between -12.5 and -8.0 ‰ (VCDT). The oxygen isotope of sulphate (δ18OSO4) ranged between 1.4 and 2.0 ‰ (VSMOW). The oxygen isotope of water (δ18OH2O) was distributed between -6.2 and -4.2 ‰ (VSMOW). Pyrite oxidation was found to be the dominant source of sulphate in the Lunar-Lukha Rivers. The results of the stoichiometric isotope balance model showed that 68-83 % of sulphate derived Fe3+ oxidation pathway, with a high portion of sulphate oxygen derived from water. The sulphite-water oxygen exchange model revealed the release of intermediate sulphoxyanions, suggesting the presence of an oxidation pathway of sulphide minerals to sulphate via sulphoxyanions. The results from this study will be helpful in defining effective remediation strategies to mitigate AMD impacts.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"76-91"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143189299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

In memoriam: Dr. Keith Alan Hobson, a pioneer of stable isotope ecology. 纪念：基思·艾伦·霍布森博士，稳定同位素生态学的先驱。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-12-03 DOI: 10.1080/10256016.2024.2434511

Leonard I Wassenaar

引用次数: 0

Exploring hydrogen isotope fractionation in lipid biomolecules of freshwater algae: implications for ecological and paleoenvironmental studies. 探索淡水藻类脂质生物大分子中的氢同位素分馏：对生态和古环境研究的意义

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-12-01 Epub Date: 2024-10-29 DOI: 10.1080/10256016.2024.2419880

Matthias Pilecky, Martin J Kainz, Leonard I Wassenaar

{"title":"Exploring hydrogen isotope fractionation in lipid biomolecules of freshwater algae: implications for ecological and paleoenvironmental studies.","authors":"Matthias Pilecky, Martin J Kainz, Leonard I Wassenaar","doi":"10.1080/10256016.2024.2419880","DOIUrl":"10.1080/10256016.2024.2419880","url":null,"abstract":"Understanding the stable hydrogen isotope (δ2H) composition and fractionation in lipid biomolecules of primary producers, such as terrestrial and aquatic plants, is crucial for deciphering past environmental conditions, as well as applying compound-specific stable isotope analysis for the study of metabolic and ecological processes. We conducted a new tracer experiment to explore the δ2H composition of algal fatty acid biomarkers, focusing on freshwater algae, which form the base of aquatic food webs. We selected a range of algal species widely found in freshwater ecosystems and cultivated them under controlled conditions. First, we added 2H2O to ambient water as a tracer to investigate the net hydrogen isotope fractionation during algal lipid synthesis at isotopic equilibrium, which is particularly informative for paleo-geochemical studies. Then, we conducted kinetic experiments to quantify the time needed for algal fatty acids to achieve isotopic steady-state conditions in response to the change in ambient water δ2H values. Our findings revealed substantial variability in hydrogen isotope fractionation among different algal taxa and various fatty acids. Based on taxa, different fatty acids exhibited faster integration of water hydrogen than others, but they were not necessarily in the order of the biosynthetic pathway. This experiment underscores the complexity of hydrogen isotope fractionation and the requirement for controlled laboratory studies to properly apply compound-specific stable H isotope analysis techniques in ecological and paleo-environmental studies.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"585-595"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Assessment of natural radioactivity levels in rice samples and their implications for radiological protection. 评估大米样本中的天然放射性水平及其对辐射防护的影响。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-12-01 Epub Date: 2024-10-24 DOI: 10.1080/10256016.2024.2412707

Hannan Younis, Mian Mateen Ullah, Muhammad Adil Khan, Farooq Ahmad, Umair Azeem, Muhammad Waseem, Khurram Mehboob, Muhammad Ajaz, Wazir Muhammad

{"title":"Assessment of natural radioactivity levels in rice samples and their implications for radiological protection.","authors":"Hannan Younis, Mian Mateen Ullah, Muhammad Adil Khan, Farooq Ahmad, Umair Azeem, Muhammad Waseem, Khurram Mehboob, Muhammad Ajaz, Wazir Muhammad","doi":"10.1080/10256016.2024.2412707","DOIUrl":"10.1080/10256016.2024.2412707","url":null,"abstract":"This study investigates the levels of natural and artificial radioactivity in rice samples collected from various local markets in Islamabad, Pakistan. The 226Ra, 232Th, and 40K activity concentrations were measured through gamma-ray spectrometry with a NaI(Tl) detector. The average activity concentrations were 1.67 ± 1.19 Bq kg-1 for 226Ra, 3.31 ± 1.83 Bq kg-1 for 232Th, and 88.51 ± 11.65 Bq kg-1 for 40K. Calculated radium equivalent (Raeq) values ranged from 7.35 to 18.08 Bq kg-1, with a mean value of 11.11 Bq kg-1, all below the permissible maximum of 370 Bq kg-1. The absorbed dose rates ranged from 6.85 to 16.39 nGy h-1, with an average of 10.64 nGy h-1, falling below the acceptable limit of 51 nGy h-1. The outdoor and indoor radiation hazard indices (Hex and Hin) had mean values of 0.03, both below the threshold value of one. The external and internal hazard indices (Iγ and Iα) were both 0.088, also below the critical value of one. The excess lifetime cancer risk (ELCR) ranged from 0.28 to 0.11, with a mean value of 0.18, which is less than the critical value of one. Overall, the radioactivity levels in the analyzed rice samples are within the acceptable limits set by the International Commission on Radiological Protection and are below global averages. These results offer important insights into the radiological safety of rice consumption in the study area.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"615-627"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142500600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

In memoriam: Dr. Keith Alan Hobson, a pioneer of stable isotope ecology. 悼念基思-艾伦-霍布森博士，稳定同位素生态学的先驱。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-12-01 Epub Date: 2024-12-03 DOI: 10.1080/10256016.2024.2434511

Leonard I Wassenaar

引用次数: 0

Copper and its isotopes: a brief overview of its implications in geology, environmental system, and human health. 铜及其同位素：概述其在地质学、环境系统和人类健康方面的影响。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-12-01 Epub Date: 2024-10-04 DOI: 10.1080/10256016.2024.2410290

Tanya Srivastava, Nishchal Wanjari

{"title":"Copper and its isotopes: a brief overview of its implications in geology, environmental system, and human health.","authors":"Tanya Srivastava, Nishchal Wanjari","doi":"10.1080/10256016.2024.2410290","DOIUrl":"10.1080/10256016.2024.2410290","url":null,"abstract":"Copper, a malleable and ductile transition metal, possesses two stable isotopes. These copper isotopic composition data have recently found diverse applications in various fields and disciplines. In geology, copper isotopes serve as tracers that aid in investigating ore formation processes and the mechanisms of copper deposits Likewise, it has emerged as a valuable tracer in polluted environments. In plant biology, copper acts as an essential micronutrient crucial for photosynthesis, respiration, and growth. Copper isotopes contribute to understanding how plants uptake and dispense copper from the soil within their tissues. Similarly, in animals, copper serves as an essential trace element, playing a vital role in growth, white blood cell function, and enzyme activity. In humans, copper acts as an antioxidant, neutralising harmful free radicals within the body. It also helps in maintaining the nervous and immune system. Furthermore, copper isotopes find medical applications, particularly in cancer diagnostics, neurodegenerative diseases, and targeted radiotherapy. However, excessive copper can have detrimental effects in humans such as it can cause liver damage, nausea, and abdominal pain, whilst in plants it can affect the growth of plants, photosynthesis, and membrane permeability. This review emphasises the significance of copper and its isotopes in geology, the environment, and human health.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"642-667"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Estimation of radiological health risks due to ²²⁶Ra, ²³²Th, and ⁴⁰K in foods consumed in Iraqi Kurdistan Region. 伊拉克库尔德斯坦地区食品中 226Ra、232Th 和 40K 放射性健康风险估算。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-12-01 Epub Date: 2024-10-04 DOI: 10.1080/10256016.2024.2411360

Dedawan Salam Saleh, Hemn Salh, Jahfer Majeed Smail, Saddon T Ahmad, Sarmad Raheem Kareem

{"title":"Estimation of radiological health risks due to 226Ra, 232Th, and 40K in foods consumed in Iraqi Kurdistan Region.","authors":"Dedawan Salam Saleh, Hemn Salh, Jahfer Majeed Smail, Saddon T Ahmad, Sarmad Raheem Kareem","doi":"10.1080/10256016.2024.2411360","DOIUrl":"10.1080/10256016.2024.2411360","url":null,"abstract":"This study investigates the activity concentration of natural radionuclides in a diverse range of food samples in the Koya district markets food baskets, including both domestic and imported products. The samples cover annual crops (e.g. coffee, tea, kidney beans), tree nuts (e.g. almonds, pistachios), and other items (e.g. beef, fish, milk) by using a high-purity germanium (HPGe) detector. This research addresses a notable gap by providing baseline data on radionuclide concentrations and assessing potential health risks. Average activity concentrations for ²²⁶Ra, ²³²Th, and ⁴⁰K were 0.943, 0.367, and 191.8 Bq kg-1, respectively. Radium equivalent activity values ranged from 2.88-58.48 Bq kg-1, all below the safety limit. The average excess lifetime cancer risk (ELCR) was 0.154 mSv a-1, indicating safety for most samples, though coffee and tea showed higher levels. This study provides new data crucial for future research and regulatory monitoring, underscoring the need for further investigation into geological impacts on radionuclide levels.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"628-641"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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