Isotopes in Environmental and Health Studies最新文献_第8页

Annual effective dose estimation of radon in drinking water sources of Nizampur basin, North Western Pakistan. 巴基斯坦西北部尼扎姆布尔盆地饮用水源氡年有效剂量估算。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-08-01 Epub Date: 2023-12-12 DOI: 10.1080/10256016.2023.2276218

Jehangir Ijaz, Wajid Ali, Said Muhammad, Hayat Ullah, Danish Ather, Imran Ud Din

{"title":"Annual effective dose estimation of radon in drinking water sources of Nizampur basin, North Western Pakistan.","authors":"Jehangir Ijaz, Wajid Ali, Said Muhammad, Hayat Ullah, Danish Ather, Imran Ud Din","doi":"10.1080/10256016.2023.2276218","DOIUrl":"10.1080/10256016.2023.2276218","url":null,"abstract":"This study assessed radon (222Rn) levels in drinking water sources in the Nizampur basin and their potential health risks for the local community. We analyzed 48 water samples on-site using RAD7. Additionally, we measured pH, temperature (T), total dissolved solids (TDS), redox potential (ORP), and electrical conductivity (EC) with a multiparameter analyzer. Results showed pH, T, TDS, ORP, and EC ranging from 7.2 to 8, 17 to 26 °C, 333 to 1130 mg/l, -56 to 284 mV, and 469 to 2370 µS/cm. 222Rn levels varied significantly (0.7-107 Bq/l, mean 23 ± 21, median = 17 Bq/l), with about 65 % exceeding the EPA's limit of 11.1 Bq/l, indicating health risks likely due to local geological conditions. The annual effective doses for ingestion (EwIng) were 0.87 ± 0.01, 0.35 ± 0.006, and 0.13 ± 0.002 µSv/a for adults, infants, and children, respectively. Exposure risk via the inhalation (EwInh) route ranged from 1.75 to 270 µSv/a, with the highest risk in infants, followed by children and adults. Inhalation was the primary exposure route for all age groups. Further, spatial distribution maps and hotspot analysis suggested that the central region characterized by high structural deformation and favorable geology for radon emanation was the area of concern in terms of health risks.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"539-553"},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71423601","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

Differences in δ¹³C and δ¹⁵N values for monarch butterflies raised on milkweeds from within and outside of crop fields: implications for inferences about natal origins. 农作物田内和农作物田外以乳草饲养的帝王斑蝶的δ13C 和 δ15N值的差异：对推断产地的影响。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-08-01 Epub Date: 2023-12-12 DOI: 10.1080/10256016.2023.2257370

John M Pleasants

{"title":"Differences in δ13C and δ15N values for monarch butterflies raised on milkweeds from within and outside of crop fields: implications for inferences about natal origins.","authors":"John M Pleasants","doi":"10.1080/10256016.2023.2257370","DOIUrl":"10.1080/10256016.2023.2257370","url":null,"abstract":"Stable isotope (δ2H, δ13C) measurements of wing tissue have been used to determine the natal geographic origin of migrant monarch butterflies that overwinter in Mexico. This study examines the possibility of using δ13C and δ15N to identify the milkweed habitat used by monarchs in their natal region. Milkweeds were common in corn and soybean fields before herbicide use led to their extirpation around 2006, and the loss of those milkweeds has been proposed as a reason for the monarch population decline. If crop-field monarchs can be identified, then historical samples of monarchs could be examined to test that hypothesis. The δ15N and δ13C values of leaves from milkweeds growing in corn fields, soybean fields and non-agricultural habitats were examined as well as monarchs that were raised on those leaves. There were no δ15N values for leaves or monarchs that were distinctive for crop fields. Milkweeds in corn fields, and monarchs that were raised on those milkweeds, were found to have δ13C values distinctly lower than those of other habitats and unlike those of locations within the summer breeding range. Thus, it should be possible to identify monarchs that came from cornfields in samples of overwintering monarchs made before ca. 2006.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"476-489"},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10362054","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

Correction. 修正。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-06-28 DOI: 10.1080/10256016.2023.2224469

引用次数: 0

Regional groundwater flow system characterization of volcanic aquifers in upper Awash using multiple approaches, central Ethiopia. 使用多种方法，埃塞俄比亚中部阿瓦什上部火山含水层的区域地下水流动系统特征。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-06-01 DOI: 10.1080/10256016.2023.2222221

Kidist Hailu, Behailu Birhanu, Tilahun Azagegn, Seifu Kebede

{"title":"Regional groundwater flow system characterization of volcanic aquifers in upper Awash using multiple approaches, central Ethiopia.","authors":"Kidist Hailu, Behailu Birhanu, Tilahun Azagegn, Seifu Kebede","doi":"10.1080/10256016.2023.2222221","DOIUrl":"https://doi.org/10.1080/10256016.2023.2222221","url":null,"abstract":"ABSTRACT Characterization of the groundwater flow systems is important for sustainable water resource management decision-making. We have used vertical profiles of electrical conductivity (EC) and water temperature taken at 2 m intervals during drilling of 109 boreholes, and samples for stable isotope analysis (δ 18O, δ 2H) taken from 47 boreholes to characterize groundwater recharge, flow and discharge. 222Rn measurements and piezometric evidence were used to complement results from the EC and stable isotopes. The converging evidence shows that groundwater in the study area is characterized by a mix of two different groundwater flow systems: i) the deep groundwater systems are connected to the regional groundwater flow originating from the highlands, outside the surface water basin, ii) the shallow groundwater systems get recharge from local rains. The local recharge zones are located in highly urbanized and industrialized zones posing risk to recharge reduction and pollution. Therefore, attention should be given to protect groundwater resources from contamination and increase groundwater resilience to climate change.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":"59 3","pages":"269-289"},"PeriodicalIF":1.3,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10496657","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

Preventing drift of oxygen isotopes of CO₂-in-air stored in glass sample flasks: new insights and recommendations. 防止储存在玻璃样品烧瓶中的空气中二氧化碳的氧同位素漂移:新的见解和建议。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-06-01 DOI: 10.1080/10256016.2023.2234594

Pharahilda M Steur, Dennis Botter, Hubertus A Scheeren, Heiko Moossen, Michael Rothe, Harro A J Meijer

{"title":"Preventing drift of oxygen isotopes of CO2-in-air stored in glass sample flasks: new insights and recommendations.","authors":"Pharahilda M Steur, Dennis Botter, Hubertus A Scheeren, Heiko Moossen, Michael Rothe, Harro A J Meijer","doi":"10.1080/10256016.2023.2234594","DOIUrl":"https://doi.org/10.1080/10256016.2023.2234594","url":null,"abstract":"It is known that the oxygen isotope composition of CO2-in-air, when stored over longer time periods in glass sample flasks, tends to drift to more negative values while the carbon isotope composition remains stable. The exact mechanisms behind this drift were still unclear. New experimental results reveal that water already inside the flasks during sampling plays a major role in the drift of the oxygen isotopes. A drying method to remove any water sticking to the inner walls by evacuating the flasks for more than 72 h while heating to 60 °C significantly decreases drift of the oxygen isotopes. Moreover, flasks not dried with this method showed higher differences among drift rates of individual flasks. This is explained through the buildup of H2O molecules sticking to the inner walls. Humidity of the air samples in the flasks as well as surface characteristics will lead to differences among flasks. Results also show that permeability of water is higher through Viton O-ring flask seals than through polychlorotrifluoroethylene (PCTFE) shaft seals, and that the stability of flasks sealed with the latter is significantly better over time.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":"59 3","pages":"309-326"},"PeriodicalIF":1.3,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10134064","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

Carbon, nitrogen, and oxygen stable isotope ratios of striped dolphins and short-finned pilot whales stranded in Hokkaido, northern Japan, compared with those of other cetaceans stranded and hunted in Japan. 搁浅在日本北部北海道的条纹海豚和短鳍领航鲸的碳、氮和氧稳定同位素比率，与在日本搁浅和狩猎的其他鲸目动物的碳、氮和氧稳定同位素比率的比较。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-06-01 DOI: 10.1080/10256016.2023.2234590

Tetsuya Endo, Osamu Kimura, Masaru Terasaki, Shotaro Nakagun, Yoshihisa Kato, Yukiko Fujii, Koichi Haraguchi, C Scott Baker

{"title":"Carbon, nitrogen, and oxygen stable isotope ratios of striped dolphins and short-finned pilot whales stranded in Hokkaido, northern Japan, compared with those of other cetaceans stranded and hunted in Japan.","authors":"Tetsuya Endo, Osamu Kimura, Masaru Terasaki, Shotaro Nakagun, Yoshihisa Kato, Yukiko Fujii, Koichi Haraguchi, C Scott Baker","doi":"10.1080/10256016.2023.2234590","DOIUrl":"https://doi.org/10.1080/10256016.2023.2234590","url":null,"abstract":"Strandings of striped dolphins (SD) and short-finned pilot whales (PW) in Hokkaido, northern Japan, are rare but have recently increased, probably due to global warming. We quantified δ13C, δ15N, and δ18O in muscles of SD (n = 7) and PW (n = 3) stranded in Hokkaido and compared these values with those in muscles (red meat products) of hunted SD and PW in three areas of central and southern Japan. δ18O in stranded SD, except for the calf, decreased with increasing body length (BL), whereas δ13C increased, with no BL-related changes in δ15N. The variability of δ18O (range of maximum and minimum) was larger in the stranded SD (7.5 ‰) than of the hunted SD in three areas (0.9, 1.9, and 1.4 ‰), whereas that of δ15N was smaller in the stranded SD than in the hunted SD. Similarly, the variability of δ18O was larger in the stranded PW in Hokkaido (3.3 ‰) than in the hunted PW in central Japan (1.4 ‰). The larger variability of δ18O and smaller variability of δ15N in stranded SD imply long-term sojourning in coastal waters and feeding on small amounts of limited prey species at low trophic levels before death.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":"59 3","pages":"230-247"},"PeriodicalIF":1.3,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10199429","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

Automated rapid triple-isotope (δ¹⁵N, δ¹⁸O, δ¹⁷O) analyses of nitrate by Ti(III) reduction and N₂O laser spectrometry. Ti(III)还原和N2O激光光谱法快速分析硝酸盐的δ15N， δ18O， δ17O。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-06-01 DOI: 10.1080/10256016.2023.2222222

Leonard I Wassenaar, Cedric Douence, Susan Fortson, Douglas S Baer

{"title":"Automated rapid triple-isotope (δ15N, δ18O, δ17O) analyses of nitrate by Ti(III) reduction and N2O laser spectrometry.","authors":"Leonard I Wassenaar, Cedric Douence, Susan Fortson, Douglas S Baer","doi":"10.1080/10256016.2023.2222222","DOIUrl":"https://doi.org/10.1080/10256016.2023.2222222","url":null,"abstract":"The nitrogen and oxygen (δ15N, δ18O, δ17O) stable isotopic compositions of nitrate (<math><mrow><mi>N</mi></mrow><msubsup><mrow><mi>O</mi></mrow><mn>3</mn><mtext>-</mtext></msubsup></math>) are crucial tracers of nutrient N sources and dynamics in aquatic and atmospheric systems. Methods to reduce aqueous <math><mrow><mi>N</mi></mrow><msubsup><mrow><mi>O</mi></mrow><mn>3</mn><mtext>-</mtext></msubsup></math> to N2O gas (microbial or Cd method) before 15N and 18O isotope analyses require multi-step conversion or toxic chemicals, and 17O in N2O cannot be disentangled by IRMS due to isobaric interferences. This technical note describes the automation of the stable-isotope analyses of nitrate by coupling the new Ti method with a headspace autosampler and an N2O triple-isotope laser analyzer based on off-axis integrated cavity output spectroscopy. The automation yielded accurate and precise results for routine determinations of δ15N, δ18O, and δ17O values for aqueous nitrate in environmental waters. Systematic corrections were required for cavity pressure, N2O concentration and water vapour content to obtain the highest precision for all three isotopic ratios. For the first time, an automated laser-based system facilitates routine low-cost triple isotope analyses in studies where high-temporal resolution isotope analyses of NO3- are required but have been, until now, cost-prohibitive and time-consuming (e.g. atmospheric N pollution).","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":"59 3","pages":"297-308"},"PeriodicalIF":1.3,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10143568","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

Intrinsic labelling of common beans with ²H₂O to enable estimates of protein digestibility. 用2H2O对普通豆进行内在标记，以估计蛋白质的消化率。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-06-01 DOI: 10.1080/10256016.2023.2234592

Karina Pfrimer, Roberto Botelho Ferraz Branco, Tom Preston, Márcia Sv Salles, Luiz C Roma-Junior, Eduardo Ferriolli

{"title":"Intrinsic labelling of common beans with 2H2O to enable estimates of protein digestibility.","authors":"Karina Pfrimer, Roberto Botelho Ferraz Branco, Tom Preston, Márcia Sv Salles, Luiz C Roma-Junior, Eduardo Ferriolli","doi":"10.1080/10256016.2023.2234592","DOIUrl":"https://doi.org/10.1080/10256016.2023.2234592","url":null,"abstract":"Background: The use of plant protein intrinsically labelled with stable isotopes provides an innovative solution to assess the efficiency of protein intake by humans. Here, the incorporation of 2H has been applied to intrinsically labelled plant protein in the common bean. This study aimed to evaluate which is the best phenological phase of seed maturation to incorporate the heavy hydrogen isotope 2H into seed amino acids. Common beans (Phaseolus vulgaris L.) were grown in pots, then, after 50 days sowing, 2H2O dissolved in irrigation water was applied, then again at an interval of either 3, 6, 9, and 12 days.Results: Applications of 2H2O at 6, 9, and 12 days after the first application, in the full-flowering stage, were the best treatments for enriching protein-bound amino acids in the bean seed with 2H.Conclusion: All treatments resulted in enrichment above 500 ppm, so the treatments (quantity and timing of 2H2O addition) were deemed successful for enriching bean seeds. This makes the intrinsically labelled seeds suitable for preparing test meals to assess the digestion and essential amino acid absorption of common bean amino acids in human subjects.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":"59 3","pages":"290-296"},"PeriodicalIF":1.3,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10146234","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

Isotopic niches of the Northern shoveler Spatula clypeata in spring migratory stopover sites in the Marais breton, France. 法国马莱布列顿春季迁徙中转站北方铲铲鱼的同位素生态位。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-06-01 DOI: 10.1080/10256016.2023.2208865

Axelle Moreau, Pierrick Bocher, Pascal Bonnin, Sébastien Farau, Christine Dupuy

引用次数: 0

The role of continental evapotranspiration on water vapour isotopic variability in the troposphere. 大陆蒸散发对对流层水汽同位素变率的作用。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-06-01 DOI: 10.1080/10256016.2023.2212834

Nimisha Singh, Rohit Pradhan, Raghavendra P Singh, Praveen K Gupta

{"title":"The role of continental evapotranspiration on water vapour isotopic variability in the troposphere.","authors":"Nimisha Singh, Rohit Pradhan, Raghavendra P Singh, Praveen K Gupta","doi":"10.1080/10256016.2023.2212834","DOIUrl":"https://doi.org/10.1080/10256016.2023.2212834","url":null,"abstract":"Rainforests play an important role in hydrological and carbon cycles, both at regional and global scales. They pump large quantities of moisture from the soil to the atmosphere and are major rainfall hotspots of the world. Satellite-observed stable water isotope ratios have played an essential role in determining sources of moisture in the atmosphere. Satellites provide information about the processes involving vapour transport in different zones of the world, identifying sources of rainfall and distinguishing moisture transport in monsoonal systems. This paper focuses on major rainforests of the world (Southern Amazon, Congo and Northeast India) to understand the role of continental evapotranspiration in influencing tropospheric water vapour. We have used satellite measurements of 1H2H16O/1H216O from Atmospheric InfraRed Sounder (AIRS), evapotranspiration (ET), solar-induced fluorescence (SIF), precipitation (P), atmospheric reanalysis-derived moisture flux convergence (MFC) and wind to discern the role of ET in influencing water vapour isotopes. A global map of the correlation between δ2Hv and ET-P flux indicates that densely vegetated regions in the tropics show the highest positive correlation (r > 0.5). Using mixing models and observations of specific humidity and isotopic ratio over these forested regions, we discern the source of moisture in pre-wet and wet seasons.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":"59 3","pages":"248-268"},"PeriodicalIF":1.3,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10143039","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