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

Using ⁸¹Kr and isotopic tracers to characterise old groundwater in the Bangkok metropolitan and vicinity areas. 使用81Kr和同位素示踪剂来表征曼谷大都市和附近地区的老地下水。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-10-09 DOI: 10.1080/10256016.2023.2261613

Kiattipong Kamdee, Jose A Corcho Alvarado, Monthon Yongprawat, Occapasorn Occarach, Vanachawan Hunyek, Arpakorn Wongsit, Chakrit Saengkorakot, Patchareeya Chanruang, Chalermpong Polee, Nichtima Uapoonphol, Jennifer Mabry, Nicolo Romeo, Darren Hillegonds, Jake C Zappala, Peter Mueller, Takuya Matsumoto

{"title":"Using 81Kr and isotopic tracers to characterise old groundwater in the Bangkok metropolitan and vicinity areas.","authors":"Kiattipong Kamdee, Jose A Corcho Alvarado, Monthon Yongprawat, Occapasorn Occarach, Vanachawan Hunyek, Arpakorn Wongsit, Chakrit Saengkorakot, Patchareeya Chanruang, Chalermpong Polee, Nichtima Uapoonphol, Jennifer Mabry, Nicolo Romeo, Darren Hillegonds, Jake C Zappala, Peter Mueller, Takuya Matsumoto","doi":"10.1080/10256016.2023.2261613","DOIUrl":"https://doi.org/10.1080/10256016.2023.2261613","url":null,"abstract":"Krypton-81 was applied to investigate the age of groundwater in the aquifer system in the Bangkok metropolitan and vicinity areas. Stable (2H, 18O and 13C) and radioactive (3H, 85Kr and 14C) isotopes and noble gases were applied in parallel. Low levels of 14C and significant radiogenic 4He confirm that groundwater in the deep aquifers is older than 30 ka. 81Kr analysis identified groundwater with ages ranging from 17 to 300 ka. At some sites, large age discrepancies between 81Kr and 14C indicated that inter-aquifer mixing is likely occurring. The interpretation of the noble gases suggests that groundwaters in the deeper aquifers, with apparent ages of 300 to 10 ka, have recharged in slightly colder and wetter climates than those found in the upper aquifers with apparent ages < 10 ka. Degradation of water quality from seawater intrusion was identified in the upper four aquifers. This was also evidenced by higher δ18O and δ2H values, typical of seawater. The four deeper aquifers contain high quality water characterised by less enriched 18O and 2H. This work presents new findings of very old groundwater in the Bangkok aquifer system.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"1-28"},"PeriodicalIF":1.3,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41140035","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

Spatial and meteorological controls of stable water isotope dynamics of precipitation in Kashmir Valley, Western Himalaya, India. 印度喜马拉雅山脉西部克什米尔山谷降水稳定水同位素动力学的空间和气象控制。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-09-26 DOI: 10.1080/10256016.2023.2256454

Altaf Lone, Ghulam Jeelani, Suhail A Lone, Virendra Padhya, Rajendrakumar D Deshpande, A P Dimri

{"title":"Spatial and meteorological controls of stable water isotope dynamics of precipitation in Kashmir Valley, Western Himalaya, India.","authors":"Altaf Lone, Ghulam Jeelani, Suhail A Lone, Virendra Padhya, Rajendrakumar D Deshpande, A P Dimri","doi":"10.1080/10256016.2023.2256454","DOIUrl":"https://doi.org/10.1080/10256016.2023.2256454","url":null,"abstract":"In the Himalayas, the lives and livelihoods of millions of people are sustained by water resources primarily depending on the moisture brought by Western Disturbances and Indian Summer Monsoon. In the present study, a network of 12 precipitation stations was established across the Kashmir Valley to understand the spatial and meteorological factors controlling precipitation isotopes. Temperature and relative humidity are dominant meteorological factors, whereas altitude, proximity to forest canopy, land use/land cover, windward and leeward sides of the mountains are the main physical factors influencing precipitation isotopes. The study suggests that the Mediterranean Sea and nearby water bodies along with continental recycling are the dominant sources of moisture from October to May, while the Arabian Sea, Bay of Bengal and continental recycling are the main sources of moisture from June to September. However, some precipitation events from October to May collect moisture from the Arabian Sea and some precipitation events from June to September collect moisture from the Mediterranean Sea. The occasional passage of Western Disturbances in summer merging with the Indian Summer Monsoon yields heavy to very heavy precipitation. The study provides a better understanding of complex spatial and meteorological phenomena controlling precipitation isotopes across the Western Himalayas.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"1-22"},"PeriodicalIF":1.3,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41104183","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

Characterizing wine terroir using strontium isotope ratios: a review. 用锶同位素比值表征葡萄酒风土:综述。

IF 1.3 4区环境科学与生态学

Isotopes in Environmental and Health Studies Pub Date : 2023-08-18 DOI: 10.1080/10256016.2023.2245122

Bruna Saar de Almeida, Lorenzo Fedele, Massimo D'Antonio, Vincenzo Morra, Mariano Mercurio, Ross Stevenson, David Widory

{"title":"Characterizing wine terroir using strontium isotope ratios: a review.","authors":"Bruna Saar de Almeida, Lorenzo Fedele, Massimo D'Antonio, Vincenzo Morra, Mariano Mercurio, Ross Stevenson, David Widory","doi":"10.1080/10256016.2023.2245122","DOIUrl":"https://doi.org/10.1080/10256016.2023.2245122","url":null,"abstract":"This paper presents a detailed review of the use of 87Sr/86Sr isotope systematics for wine provenance studies. The method is based on the principle that the Sr isotope ratio in wine reflects that of the labile fraction of the vineyard soil from which the wine is produced. The review encompasses 87Sr/86Sr data from wine samples published between 1993 and 2021 from terroirs in 22 different countries. The analytical procedures and techniques adopted by the different authors and the range of isotope ratios obtained in the different studies are discussed and evaluated. This study provides a bibliometric analysis of the 87Sr/86Sr isotope approach for wine authentication at different scales. Although limitations are evident when implemented at large (global) scales, we demonstrate that the 87Sr/86Sr isotope tracing technique remains a powerful and reliable tool for determining the geographical origin of wine when combined with detailed knowledge of the geological and soil characteristics of the substrata. For example, this combination of data allows the wines grown in the volcanic soils of Central and Southern Italy to be unambiguously fingerprinted. We present a detailed protocol for the application of the Sr isotope technique to wine authentication.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"1-22"},"PeriodicalIF":1.3,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10012271","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

Measurements of natural radionuclide levels and hazards in the Lega Dembi gold mine, Oromia, Ethiopia. 埃塞俄比亚奥罗米亚Lega Dembi金矿天然放射性核素水平和危害的测量。

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: 10.1080/10256016.2023.2273287

Gebi Tuku Yachiso, Ashok K Chaubey, Birhanu Turi

{"title":"Measurements of natural radionuclide levels and hazards in the Lega Dembi gold mine, Oromia, Ethiopia.","authors":"Gebi Tuku Yachiso, Ashok K Chaubey, Birhanu Turi","doi":"10.1080/10256016.2023.2273287","DOIUrl":"10.1080/10256016.2023.2273287","url":null,"abstract":"This study aimed to evaluate natural radioactivity levels and hazards of radionuclides 232Th, 226Ra and 40K in soil samples taken from 15 locations in the Lega Dembi gold mining, Oromia, Ethiopia, using gamma-ray spectroscopy coupled with an HPGe detector. It was observed that the respective mean specific activities for 226Ra, 232Th and 40K determined in the mining site were 23.87 ± 0.7, 52.5 ± 1.8 and 391.62 ± 11.35 Bq/kg, and 8.89 ± 0.4, 13.83 ± 0.6 and 423.68 ± 9.5 Bq/kg in the living areas. The specific activity of 232Th was above the permissive limit in the mining site, while for 226Ra and 40K were within the limit. The specific activity of 40K in the living area was observed to be above the permissive limit. The calculated value of radiation hazards parameters; radium equivalent activity (Raeq), internal and external hazards indices (Hin) and (Hex), the mean annual effective dose (AED), and gamma representative indices (Iγ) were within permissively limit. The mean absorbed dose rate in the mining site was above the recommended safety limit. The total annual gonadal dose equivalent value was found to be 494.8 ± 8.7 µSv/a in the mining site. This value was also above the permissively.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"554-566"},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92154328","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

Application of multiple stable isotopes to aid identification of the origin of regional and organic animal products in Hesse, Germany. 多种稳定同位素的应用，以帮助识别原产地的区域和有机动物产品在黑森州，德国。

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: 10.1080/10256016.2023.2273941

Xenia Gatzert, Kwok P Chun, Robert Hermanowski, Rolf Mäder, Lutz Breuer, Andreas Gattinger, Natalie Orlowski

{"title":"Application of multiple stable isotopes to aid identification of the origin of regional and organic animal products in Hesse, Germany.","authors":"Xenia Gatzert, Kwok P Chun, Robert Hermanowski, Rolf Mäder, Lutz Breuer, Andreas Gattinger, Natalie Orlowski","doi":"10.1080/10256016.2023.2273941","DOIUrl":"10.1080/10256016.2023.2273941","url":null,"abstract":"There is an increasing global demand for regional and organic produce. However, the growth of these markets depends on consumers' trust. Thus, novel methods must be developed to aid the verification of the origin of produce. We built on our previous study to identify the geographical origin and production method of animal-derived food products. Thirty-samples of eggs, 99 of milk, 34 of beef, and 62 of pork were collected from different regions in central Germany and analysed for their stable isotopic composition. The analysis followed a single-variate authentification approach using five isotope signatures, δ18O, δ2H, δ13C, δ15N, and δ34S. The best-performing indicators for verification of the geographical origin were δ15N and δ34S for beef; δ18O, δ2H, and δ13C for milk, and δ2H and δ13C for pork. These tracers indicated statistically significant differences among regions with the exception of pork; the results recorded for eggs were inconclusive. It was possible to distinguish between production methods by means of δ15N and δ34S (beef); all five tracers (eggs), and δ13C, δ15N, and δ34S (milk). This study demonstrated how the analysis of stable isotopes can be employed to determine the geographic region of origin and production method of animal-derived products in Germany.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"490-510"},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138046920","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 history of seawater: the stable isotope character of the global ocean at present and in the geological past. 海水的同位素历史:全球海洋在现在和地质过去的稳定同位素特征。

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: 10.1080/10256016.2023.2271127

Jochen Hoefs, Russell S Harmon

{"title":"Isotopic history of seawater: the stable isotope character of the global ocean at present and in the geological past.","authors":"Jochen Hoefs, Russell S Harmon","doi":"10.1080/10256016.2023.2271127","DOIUrl":"10.1080/10256016.2023.2271127","url":null,"abstract":"After the atmosphere, the ocean is the most well-mixed and homogeneous global geochemical reservoir. Both physical and biological processes generate elemental and isotope variations in seawater. Contrasting geochemical behaviors cause elements to be susceptible to different fractionation mechanisms, with their isotopes providing unique insights into the composition and evolution of the ocean over the course of geological history. Supplementing the traditional stable isotopes (H, C, O, N, S) that provide information about ocean processes and past environmental conditions, radiogenic isotope (Sr, Nd, Os, Pb, U) systems can be used as time markers, indicators of terrestrial weathering, and ocean water mass mixing. Recent instrumentation advances have made possible the measurement of natural stable isotope variations produced by both mass-dependent and mass-independent fractionation for an ever-increasing number of metal elements (e.g. Li, B, Mg, Si, Ca, V, Cr, Fe, Ni, Cu, Zn, Se, Mo, Cd, Tl, U). The major emphasis in this review is on the isotopic composition of the light elements based on a comparatively large literature. Unlike O, H and S, the stable isotopes of C, N and Si do not have a constant isotopic composition in the modern ocean. The major cations Ca, Mg, and Sr fixed in carbonate shells provide the best proxies for reconstruction of the composition of the ocean in the past. Exhibiting large isotope enrichments in ocean water, B and Li are suitable for the investigation of water/rock interactions and can act as monitors of former oceanic pH. The bioessential elements Zn, Cd, and Ni are indicators of paleoproductivity in the ocean. Characteristic isotope enrichments or depletions of the multivalent elements V, Cr, Fe, Se, Mo, and U record the past redox state of the ocean/atmosphere system. Case studies describe how isotopes have been used to define the seawater composition in the geological past.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"349-411"},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50157944","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

²²⁶Ra measurement via gamma-ray spectrometry of ²²²Rn progeny - quantification of radon losses from sample capsules. 通过 222Rn 后代的伽马射线光谱法测量 226Ra - 量化样品胶囊中的氡损失。

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: 2023-08-11 DOI: 10.1080/10256016.2023.2244651

Michael Schubert, Albrecht Paschke, Wolfram Westmeier

{"title":"226Ra measurement via gamma-ray spectrometry of 222Rn progeny - quantification of radon losses from sample capsules.","authors":"Michael Schubert, Albrecht Paschke, Wolfram Westmeier","doi":"10.1080/10256016.2023.2244651","DOIUrl":"10.1080/10256016.2023.2244651","url":null,"abstract":"Radium-226 detection in sediment samples is generally executed by means of gamma-ray spectrometry. Data evaluation relies (besides the 186.2 keV 226Ra gamma peak) on the combined analysis of major gamma peaks that are produced by the short-lived radon (222Rn) daughters 214Pb and 214Bi. Precondition for this detection approach is equilibrium decay of all members of the decay chain between 226Ra and 214Bi. In closed systems, this equilibrium is reached after about five half-lives of 222Rn (19 days). However, a closed system can only be guaranteed if the capsule which contains the sample prevents diffusive escape of radon. Such radon-tightness cannot be guaranteed for a wide range of plastic materials. Due to its polymer structure, plastic material generally tends to allow radon diffusion and hence radon loss from the sample resulting in a disturbance of the required decay equilibrium. The paper introduces an approach that allows quantifying radon loss from sample capsules by direct radon measurements using mobile radon detection equipment. The experimental findings are supported by theoretical considerations. An examined alternative approach based on the offset of the 186.2 keV data point from an efficiency function that is calculated exclusively from short-lived radon progeny peaks in the gamma-ray spectrum did not prove to be applicable due to a lack of supporting peaks in the low-energy section of the spectrum.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"529-538"},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10346351","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

Measurement of plasma protein and whole body protein metabolism using [¹⁵N]glycine in a young adult man - a pilot study. 使用[15N]甘氨酸测量一名年轻成年男子的血浆蛋白质和全身蛋白质代谢--一项试验研究。

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: 10.1080/10256016.2023.2252572

Peter Junghans, Gerhard Zuz, Hans Faust

{"title":"Measurement of plasma protein and whole body protein metabolism using [15N]glycine in a young adult man - a pilot study.","authors":"Peter Junghans, Gerhard Zuz, Hans Faust","doi":"10.1080/10256016.2023.2252572","DOIUrl":"10.1080/10256016.2023.2252572","url":null,"abstract":"A novel simplified method is presented for the estimation of the metabolism of plasma proteins (albumin, fibrinogen, α, β and γ-globulin, glycoprotein) with regard to the whole body protein metabolism in a young male volunteer (22 years, 81 kg body mass). This method is based on multiple oral administration of [15N]glycine followed by measurement of 15N in plasma proteins, total free amino acids, urea and excreted urinary N. The fractional synthesis rate of albumin was estimated to 6.8 % d-1 based on amino acids and 3.3 % d-1 based on urea, respectively. The fractional synthesis rate of the other plasma proteins ranged from 4.3 % d-1 (γ-globulin) to 26.4 % d-1 (α-globulin, fibrinogen). We conclude that the simplified approach using [15N]glycine provides results which are similar to results based on the simultaneously applied 131I-human serum albumin technique as 'gold standard' and to those reported in literature. The compartmental analysis considering comprehensive tracer kinetic data ensures reliable data treatment and enables statistical evaluation. The analytical effort is minimal because the 15N enrichment of plasma protein after chemical digestion may be directly used. Therefore, the novel stable isotope 15N method is suitable for studies in clinical and nutritional research and practice.","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"511-528"},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10363635","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

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