Isotopes in Environmental and Health Studies最新文献_第5页

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":" ","pages":"174-190"},"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":" ","pages":"122-140"},"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":" ","pages":"191-212"},"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":" ","pages":"141-161"},"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

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":" ","pages":"103-121"},"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

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

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

Topographic influence on ecohydrology in volcanic watersheds of the western Pacific monsoon area: evidence from water stable isotope composition of meteoric water, thermal water, and plants. 地形对西太平洋季风区火山流域生态水文学的影响：从陨石水、热水和植物的水稳定同位素组成中获得的证据。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-03-01 Epub Date: 2024-01-31 DOI: 10.1080/10256016.2023.2298854

Tsung-Ren Peng, Hsiao-Fen Lee, Tsang-Sen Liu, Jun-Yi Lee, Yi-Chia Lu

{"title":"Topographic influence on ecohydrology in volcanic watersheds of the western Pacific monsoon area: evidence from water stable isotope composition of meteoric water, thermal water, and plants.","authors":"Tsung-Ren Peng, Hsiao-Fen Lee, Tsang-Sen Liu, Jun-Yi Lee, Yi-Chia Lu","doi":"10.1080/10256016.2023.2298854","DOIUrl":"10.1080/10256016.2023.2298854","url":null,"abstract":"In Taiwanese volcanic watersheds, we investigated stable water isotopes in meteoric water, plants, and thermal water. Meteoric water exhibited a seasonal cycle, with heavier isotopes in winter and lighter ones in summer, especially in the southern region. The northern monsoon signal lagged the south by two weeks. In the Tatun mountains, young water fractions indicated prevalent old water sources. In the northern watershed, streamwater mainly came from the winter monsoon, while the southern one was influenced by alternating monsoons. Both indices indicated that winter plants depended on summer rainfall. Streamwater and plants had distinct sources in winter, supporting ecohydrological separation. Thermal spring water's d-excess helped identify water-rock interactions, with low d value signaling such interactions. The topographic wetness index showed a higher summer monsoon contribution to southern streamwater but a lower one to plants. The mean linear channel direction significantly affected the monsoon contribution fraction, with northeast-oriented channels vulnerable to northeastward winter monsoons. Finally, we developed a model illustrating hydrological processes on short and long timescales. Our findings enhance our understanding of hydrological disturbances' impact on water resources and ecosystems.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"32-52"},"PeriodicalIF":1.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139417122","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

Radiation risk assessment of quarry pit soil as construction material in Abeokuta, Nigeria: implications for environmental and public health. 尼日利亚阿贝奥库塔采石场土壤作为建筑材料的辐射风险评估:对环境和公众健康的影响。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-03-01 Epub Date: 2024-01-31 DOI: 10.1080/10256016.2023.2285002

Oluwaseyi A Jegede, Morohunfoluwa A Olaoye, Peter O Olagbaju, Victor Makinde, Wael M Badawy

{"title":"Radiation risk assessment of quarry pit soil as construction material in Abeokuta, Nigeria: implications for environmental and public health.","authors":"Oluwaseyi A Jegede, Morohunfoluwa A Olaoye, Peter O Olagbaju, Victor Makinde, Wael M Badawy","doi":"10.1080/10256016.2023.2285002","DOIUrl":"10.1080/10256016.2023.2285002","url":null,"abstract":"ABSTRACTEnvironmental and health risks posed by radionuclides in quarry pit soils are of great concern in environmental health monitoring. The current investigation was aimed at determining the natural radionuclide activity concentration (in Bq kg-1) of the understudied quarry pit granules used as construction materials. The collection and preparation of pit soil samples from Abeokuta quarry sites were done using standard methods, analysis of radiological parameters was carried out using hyperpure germanium (HPGe) spectrometer. Specific activity concentrations of 226Ra, 232Th, and 40K were measured. The values obtained were greater than the world weighted average of 35, 30, and 400 Bq kg-1 for 226Ra, 232Th, and 40K, respectively. The absorbed dose, the annual effective dose, and the radium equivalent were calculated and demonstrated significant values. The radionuclide content of the samples is relatively high and the use of pit soils as a building material, therefore, raises radiological concerns for dwellers in this area and requires periodic monitoring and undergoing a radiation protection program.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"90-102"},"PeriodicalIF":1.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138299095","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

Successful reduction of indoor radon activity concentration via cross-ventilation: experimental data and CFD simulations. 通过交叉通风成功降低室内氡活度浓度:实验数据和CFD模拟。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2024-03-01 Epub Date: 2024-01-31 DOI: 10.1080/10256016.2023.2282686

Diana Altendorf, Henning Wienkenjohann, Florian Berger, Jörg Dehnert, Hannes Grünewald, Dmitri Naumov, Ralf Trabitzsch, Holger Weiß

{"title":"Successful reduction of indoor radon activity concentration via cross-ventilation: experimental data and CFD simulations.","authors":"Diana Altendorf, Henning Wienkenjohann, Florian Berger, Jörg Dehnert, Hannes Grünewald, Dmitri Naumov, Ralf Trabitzsch, Holger Weiß","doi":"10.1080/10256016.2023.2282686","DOIUrl":"10.1080/10256016.2023.2282686","url":null,"abstract":"Advanced computational fluid dynamics (CFD) simulations are essential for predicting airflow in ventilated spaces and assessing indoor air quality. In this study, a focus was set on techniques for the reduction of indoor radon-222 activity concentration [Rn], and it is demonstrated how true-to-scale 3D CFD models can predict the evolution of complex ventilation experiments. A series of ventilation experiments in an unoccupied flat on the ground floor of a residential block in Bad Schlema (Saxony, Germany) were performed. Specifically, the 'Cross-ventilation 100 %' experiment resulted in room-specific [Rn] reductions from ∼3000 to ∼300 Bq m-3. We quantitatively interpreted the results of the ventilation experiment using a CFD model with a k-ϵ turbulent stationary flow model characterised by the used decentralised ventilation system. The model was coupled with a transient transport model simulating indoor [Rn]. In a first approach, the model overestimated the decrease in the starting of the experiment and the steady state. Adjusting the model parameters inflowing radon and inlet velocity the model results are in a good agreement with the experimental values. In conclusion, this paper demonstrates the potential of CFD modelling as a suitable tool in evaluating and optimising ventilation systems for an effective reduction of elevated [Rn].","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"74-89"},"PeriodicalIF":1.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136397416","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