Isotopes in Environmental and Health Studies最新文献_第3页

A protocol for distilling animal body water from biological samples and measuring oxygen and hydrogen stable isotopes via cavity ring-down spectroscopy. 从生物样本中蒸馏出动物体内的水，并通过空腔降环光谱法测量氧和氢稳定同位素的方案。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-06-01 Epub Date: 2024-03-12 DOI: 10.1080/10256016.2024.2323201

Zachary T Steele, Karen Caceres, Austin D Jameson, Michael Griego, Elizabeth J Rogers, John P Whiteman

{"title":"A protocol for distilling animal body water from biological samples and measuring oxygen and hydrogen stable isotopes via cavity ring-down spectroscopy.","authors":"Zachary T Steele, Karen Caceres, Austin D Jameson, Michael Griego, Elizabeth J Rogers, John P Whiteman","doi":"10.1080/10256016.2024.2323201","DOIUrl":"10.1080/10256016.2024.2323201","url":null,"abstract":"The application of stable isotope analysis (SIA) to the fields of ecology and animal biology has rapidly expanded over the past three decades, particularly with regards to water analysis. SIA now provides the opportunity to monitor migration patterns, examine food webs, and assess habitat changes in current and past study systems. While carbon and nitrogen SIA of biological samples have become common, analyses of oxygen or hydrogen are used more sparingly despite their promising utility for tracing water sources and animal metabolism. Common ecological applications of oxygen or hydrogen SIA require injecting enriched isotope tracers. As such, methods for processing and analyzing biological samples are tailored for enriched tracer techniques, which require lower precision than other techniques given the large signal-to-noise ratio of the data. However, instrumentation advancements are creating new opportunities to expand the applications of high-throughput oxygen and hydrogen SIA. To support these applications, we update methods to distill and measure water derived from biological samples with consistent precision equal to, or better than, ± 0.1 ‰ for δ17O, ± 0.3 ‰ for δ18O, ± 1 ‰ for δ2H, ± 2 ‰ for d-excess, and ± 15 per meg for Δ17O.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140110298","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

Comparison of carbon, nitrogen, and oxygen stable isotope ratios and mercury concentrations in muscle tissues of five beaked whale species and sperm whales stranded in Hokkaido, Japan. 比较日本北海道搁浅的五种喙鲸和抹香鲸肌肉组织中的碳、氮、氧稳定同位素比率和汞浓度。

IF 1.1 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-06-01 Epub Date: 2024-06-04 DOI: 10.1080/10256016.2024.2352373

Tetsuya Endo, Osamu Kimura, Masaru Terasaki, Yukiko Fujii, Koichi Haraguchi, Yoshihisa Kato

{"title":"Comparison of carbon, nitrogen, and oxygen stable isotope ratios and mercury concentrations in muscle tissues of five beaked whale species and sperm whales stranded in Hokkaido, Japan.","authors":"Tetsuya Endo, Osamu Kimura, Masaru Terasaki, Yukiko Fujii, Koichi Haraguchi, Yoshihisa Kato","doi":"10.1080/10256016.2024.2352373","DOIUrl":"10.1080/10256016.2024.2352373","url":null,"abstract":"We studied δ13C, δ15N and δ18O values, and total mercury (THg) concentrations in muscle samples from deep-sea predators - five beaked whale species and sperm whales - stranded along the coast of Hokkaido, in the north of Japan in 2010 and 2019. The δ13C, δ15N and δ18O values, THg concentrations, and body length (BL) of Stejneger's beaked whales were similar to those of Hubbs' beaked whales, which belong to the same genus. In contrast, δ13C values, THg concentrations, and BL of Sato's beaked whales were markedly different from those of Baird's beaked whales, which belong to the same genus. Stejneger's and Hubbs' beaked whales living around Hokkaido may compete in their ecological niches, whereas Sato's and Baird's beaked whales may segregate their ecological niches. Although Cuvier's beaked whales and sperm whales belong to different genera and their BLs were significantly different, their δ13C and δ15N values were similar, probably because they can dive and stay in deeper waters than other beaked whale species. The δ13C values in combined samples from all whales increased with increasing BL, probably owing to the larger whale species' dietary preference for squid. The δ13C values in combined samples from all whales were positively correlated with THg concentrations, whereas the δ15N values in the combined samples were negatively correlated. The δ18O values in combined samples from most whales tended to be positively correlated with THg concentrations. These correlations may be explained by a higher THg load from deep-sea feeding than from pelagic feeding and by a feeding shift towards lower trophic levels.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141247533","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 radioactivity level and associated radiological hazard in riverbed samples within industrial areas. 评估工业区河床样本中的放射性水平和相关辐射危害。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-05-01 Epub Date: 2024-02-19 DOI: 10.1080/10256016.2024.2317391

Afroza Shelley, Mahmud Hasan Ovi, Mohammad Shafiqul Alam

{"title":"Assessment of radioactivity level and associated radiological hazard in riverbed samples within industrial areas.","authors":"Afroza Shelley, Mahmud Hasan Ovi, Mohammad Shafiqul Alam","doi":"10.1080/10256016.2024.2317391","DOIUrl":"10.1080/10256016.2024.2317391","url":null,"abstract":"Terrestrial gamma radiation is one of the major outdoor radiation exposures to the general public that varies substantially based on the type and geological properties of the soil. The objective of this study is to evaluate the naturally occurring radioactive materials (NORMs) distribution and assess the hazard parameters in the riverbank soil within various industrial zones in the densely populated Dhaka and Chattogram cities of Bangladesh. The mean activities of 226Ra (37 ± 3), 232Th (58 ± 4), and 40K (1129 ± 18) Bqkg-1 in the assessed soil samples were found to be slightly higher than the world average values 32, 35, and 420 Bqkg-1, respectively. The mean radium equivalent activity (207.49 Bqkg-1) and the external and internal hazard indices were within the recommended limits of 370 Bqkg-1 and <1, respectively. The mean absorbed dose rate (99.47 nGyhr-1), annual effective dose (0.12 mSva-1), ELCR (4.27 × 10-4), and gamma level index (1.58) exceeded the world average values 59 nGyhr-1, 0.07 mSva-1, 2.9 × 10-4, and 1 respectively. However, the studied areas are safe from a radiological viewpoint with no radiation health hazard to the people. The results of this study can be utilized to produce factual baseline data for future studies.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139899875","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

Origin and stability of pit lake water in Baiyinhua, Inner Mongolia, based on hydrochemistry and stable isotopes. 基于水化学和稳定同位素的内蒙古白音华坑湖水的起源和稳定性。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-05-01 Epub Date: 2024-01-25 DOI: 10.1080/10256016.2024.2306880

Shengliang Pei, Deqiang Zhang, Shining Wang, Zhaodi Zhang

{"title":"Origin and stability of pit lake water in Baiyinhua, Inner Mongolia, based on hydrochemistry and stable isotopes.","authors":"Shengliang Pei, Deqiang Zhang, Shining Wang, Zhaodi Zhang","doi":"10.1080/10256016.2024.2306880","DOIUrl":"10.1080/10256016.2024.2306880","url":null,"abstract":"Isotope technology is widely used in geochemical mechanisms analysis; however, studies on the origin of pit lake water by isotopes in coal concentration areas in grassland are rare. In this study, 20 groups of water samples were collected, which were subjected to chemical analysis to determine the hydrogeochemical characteristics of pit lake water. The mechanisms of pit lake water formation and recharge-evaporation were ascertained through principal component analysis and the Rayleigh fractionation model. The results indicate that the phreatic water is least affected by evaporation, followed by confined water, surface water and pit lake water. The ionic composition of surface water, phreatic water and most of the confined water is mainly affected by leaching, some confined water can be recharged by surface or phreatic water; while the ionic composition of pit lake water is dominantly affected by evaporation (69.4 %) and is less affected by groundwater recharge (17.1 %) and human activities (11.5 %). The pit lake water is recharged by precipitation, phreatic water and the lateral runoff of confined water; however, the proportion of phreatic and confined water recharge is small. The evaporative loss of the pit lake water is 40-61 % of the initial water body.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139545949","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

The stable isotope hydrology of Sable Island, Nova Scotia, Canada with implications for evaluating the water budget of wild horses. 加拿大新斯科舍省萨布尔岛的稳定同位素水文学及其对评估野马水预算的影响。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-05-01 Epub Date: 2024-02-19 DOI: 10.1080/10256016.2024.2316584

Geoff Koehler, Gina McNeill, Keith A Hobson

{"title":"The stable isotope hydrology of Sable Island, Nova Scotia, Canada with implications for evaluating the water budget of wild horses.","authors":"Geoff Koehler, Gina McNeill, Keith A Hobson","doi":"10.1080/10256016.2024.2316584","DOIUrl":"10.1080/10256016.2024.2316584","url":null,"abstract":"We investigated the stable isotope hydrology of Sable Island, Nova Scotia, Canada over a five year period from September, 2017 to August, 2022. The δ2H and δ18O values of integrated monthly precipitation were weakly seasonal and ranged from -66 to -15 ‰ and from -9.7 to -1.9 ‰, respectively. Fitting these monthly precipitation data resulted in a local meteoric water line (LMWL) defined by: δ2H = 7.22 ± 0.21 · δ18O + 7.50 ± 1.22 ‰. Amount-weighted annual precipitation had δ2H and δ18O values of -36 ± 11 ‰ and -6.1 ± 1.4 ‰, respectively. Deep groundwater had more negative δ2H and δ18O values than mean annual precipitation, suggesting recharge occurs mainly in the winter, while shallow groundwater had δ2H and δ18O values more consistent with mean annual precipitation or mixing of freshwater with local seawater. Surface waters had more positive values and showed evidence of isolation from the groundwater system. The stable isotopic compositions of plant (leaf) water, on the other hand, indicate plants use groundwater as their source. Fog had δ2H and δ18O values that were significantly more positive than those of local precipitation, yet had similar 17O-excess values. δ2H values of horsehair from 4 individuals lacked seasonality, but had variations typical to those of precipitation on the island. Differences in mean δ2H values of horsehair were statistically significant and suggest variations in water use may exist between spatially disparate horse communities. Our results establish an important initial framework for ongoing isotope studies of feral horses and other wildlife on Sable Island.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139899876","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

Assessing soil erosion in a semiarid ecosystem in Central Argentina using ¹³⁷Cs and ⁷Be measurements. 利用 137Cs 和 7Be 测量数据评估阿根廷中部半干旱生态系统的土壤侵蚀情况。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-05-01 Epub Date: 2024-01-23 DOI: 10.1080/10256016.2024.2305335

Flavia Lohaiza, Jimena Juri Ayub, Diego L Valladares, Hugo Velasco, Marcos Rizzotto, Juan Pablo de Rosas, Ricardo Paez

{"title":"Assessing soil erosion in a semiarid ecosystem in Central Argentina using 137Cs and 7Be measurements.","authors":"Flavia Lohaiza, Jimena Juri Ayub, Diego L Valladares, Hugo Velasco, Marcos Rizzotto, Juan Pablo de Rosas, Ricardo Paez","doi":"10.1080/10256016.2024.2305335","DOIUrl":"10.1080/10256016.2024.2305335","url":null,"abstract":"Argentina is a Latin American country which encounters soil degradation problems. The most productive regions have implemented conservative land practices (no-till). However, agricultural frontier has been displaced to marginal lands with arid and semiarid climates, with the consequent disappearance in many areas of native forest and land degradation. In this work, the fallout of gamma-emitting radionuclides, 137Cs and 7Be, was jointly used to assess changes in soil erosion in a recently converted semiarid ecosystem into agricultural land. 137Cs was utilized to estimate the erosion over the past 60 years, whereas 7Be was employed to estimate the erosion after the conversion of the area to cultivated land and soil tillage. For 137Cs the Proportional Model (PM), the Mass Balance Model II (MBMII) and the MODERN model were used, for 7Be the Profile Distribution Model (PDM) and the MODERN model were used. 137Cs indicates mean erosional rates of 8.2, 10.5 and 6.5 Mg ha-1 a-1, using MBMII, PM and MODERN, respectively, and that a soil layer between 0.5 and 0.8 mm was annually lost by erosion. By applying a 7Be tracer, we measured erosion rates of 2.4 and 3.3 Mg ha-1 (with PDM and Modern, respectively), indicating the loss of the upper 0.2 mm of soil. This erosion can be attributed to a few heavy rainfalls that occurred within the past 90 days. The results suggest that current land management practices have led to an increase in soil erosion. This could be attributed to the fact that the soil remains bare after crop harvest, which may compromise its conservation and future productivity.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139520928","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

Chemical and C and N stable isotope compositions of three species of epiphytic Tillandsia in a Caribbean coastal zone: air pollution sources and biomonitoring implications. 加勒比海沿海地区三种附生 Tillandsia 的化学成分以及 C 和 N 的稳定同位素组成：空气污染源和生物监测影响。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-05-01 Epub Date: 2024-01-25 DOI: 10.1080/10256016.2024.2304756

Yasser Morera-Gómez, Alejandro Armas-Camejo, Jesús Miguel Santamaría, Carlos Manuel Alonso-Hernández, Esther Lasheras, David Widory, David Elustondo

{"title":"Chemical and C and N stable isotope compositions of three species of epiphytic Tillandsia in a Caribbean coastal zone: air pollution sources and biomonitoring implications.","authors":"Yasser Morera-Gómez, Alejandro Armas-Camejo, Jesús Miguel Santamaría, Carlos Manuel Alonso-Hernández, Esther Lasheras, David Widory, David Elustondo","doi":"10.1080/10256016.2024.2304756","DOIUrl":"10.1080/10256016.2024.2304756","url":null,"abstract":"We characterized the elemental and C and N stable isotope compositions of Tillandsia fasciculata Sw., Tillandsia balbisiana Schult. & Schult.f. and Tillandsia recurvata (L.) L. samples collected in Cienfuegos (Cuba). Results showed high enrichment factors for S, Hg, Cd, Pb, P, Zn, Cu, Mo, Sb and Ca in all Tillandsia species, indicating inputs from local anthropogenic activities (road traffic, industries and cement production). Carbon concentrations and δ13C varied from 38.3-47.7 % and -20.4 to -13.4 ‰ within the three species, respectively. δ13C showed seasonal dependence with the dry and wet periods and more 13C-depleted values in urban/industrial areas, coherent with the input of anthropogenic emissions. Nitrogen concentrations (0.4-1.3 %) and δ15N values (-9.9-4.4 ‰) exhibit larger variations and are positively correlated in the three species. The most positive δ15N in T. recurvata (-0.2-4.4 ‰) are attributed to contributions from industrial activities and road traffic. In fact, both δ15N and total nitrogen (TN) values increase in sites with higher road traffic and show significant correlations with typical road traffic and industrial tracers. Finally, we calculate an average total nitrogen deposition rate of 4.4 ± 2.3 kg ha-1 a-1 from N content in T. recurvata, similar to the existing values determined in the region by field measurements, but higher than the global terrestrial average.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139545948","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

Effects of lipid extraction on stable isotope ratios of carbon and nitrogen in muscles of freshwater fish. 提取脂质对淡水鱼肌肉中碳和氮的稳定同位素比值的影响

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-05-01 Epub Date: 2024-02-14 DOI: 10.1080/10256016.2024.2317379

Elena S Ivanova, Maria A Belova, Olga Yu Rumiantseva, Alena A Zudilova, Dmitry S Kopylov, Michael Y Borisov, Viktor T Komov

引用次数: 0

Anaerobic dihydrogen consumption of nutrient-limited aquifer sediment microbial communities examined by stable isotope analysis. 通过稳定同位素分析研究营养有限的含水层沉积物微生物群落的厌氧二氢消耗。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-05-01 Epub Date: 2024-02-12 DOI: 10.1080/10256016.2024.2306146

Michaela Löffler, Laura Schwab, Frank Dethlefsen, Louisa Lagmöller, Carsten Vogt, Hans-Hermann Richnow

{"title":"Anaerobic dihydrogen consumption of nutrient-limited aquifer sediment microbial communities examined by stable isotope analysis.","authors":"Michaela Löffler, Laura Schwab, Frank Dethlefsen, Louisa Lagmöller, Carsten Vogt, Hans-Hermann Richnow","doi":"10.1080/10256016.2024.2306146","DOIUrl":"10.1080/10256016.2024.2306146","url":null,"abstract":"The biogeochemical consequences of dihydrogen (H2) underground storage in porous aquifers are poorly understood. Here, the effects of nutrient limitations on anaerobic H2 oxidation of an aquifer microbial community in sediment microcosms were determined in order to evaluate possible responses to high H2 partial pressures. Hydrogen isotope analyses of H2 yielded isotope depletion in all biotic setups indicating microbial H2 consumption. Carbon isotope analyses of carbon dioxide (CO2) showed isotope enrichment in all H2-supplemented biotic setups indicating H2-dependent consumption of CO2 by methanogens or homoacetogens. Homoacetogenesis was indicated by the detection of acetate and formate. Consumption of CO2 and H2 varied along the differently nutrient-amended setups, as did the onset of methane production. Plotting carbon against hydrogen isotope signatures of CH4 indicated that CH4 was produced hydrogenotrophically and fermentatively. The putative hydrogenotrophic Methanobacterium sp. was the dominant methanogen. Most abundant phylotypes belonged to typical ferric iron reducers, indicating that besides CO2, Fe(III) was an important electron acceptor. In summary, our study provides evidence for the adaptability of subsurface microbial communities under different nutrient-deficient conditions to elevated H2 partial pressures.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139722539","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

Applicability of self-consistent reaction field (SCRF) method to DFT estimation of hydrogen isotope separation factors in reversible processes 自洽反应场 (SCRF) 法在 DFT 估算可逆过程中氢同位素分离因子中的适用性

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-04-10 DOI: 10.1080/10256016.2024.2336470

Satoshi Yanase, Yoshikazu Kikawada, Takao Oi

引用次数: 0