Isotopes in Environmental and Health Studies最新文献

{"title":"Radiological hazard assessment of radon gas in vegetable and fruit samples using solid state nuclear track detectors.","authors":"Hiwa Mohammad Qadr, Alla Ahmed Muhamad Amin","doi":"10.1080/10256016.2025.2495336","DOIUrl":"https://doi.org/10.1080/10256016.2025.2495336","url":null,"abstract":"<p><p>This study examines the concentrations of radon, radium, and uranium, along with the annual effective dose and excess lifetime cancer risk due to ingestion of radon in vegetable and fruit samples collected randomly from eleven sites in the Ranya district, Iraq. The solid state nuclear track detector CR-39 was used to monitor radon levels and their progeny. The findings demonstrate that the average concentrations of radon, radium, and uranium in vegetable and fruit samples were 91.05 Bq m^-3, 0.26 Bq kg^-1, and 0.06 ppm, respectively. These results were lower than the global average recommended by ICRP and UNSCEAR. Additionally, the average values of annual effective dose and excess lifetime cancer risk were 0.02 µSv y^-1 and 0.08 × 10^-6, respectively. These results comply with internationally recommended safe levels for human consumption. Further research is recommended to evaluate the transfer of radionuclides from soil to edible crops.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"1-12"},"PeriodicalIF":1.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144035277","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}

{"title":"Arithmetic normalisation models for the effects of lipid on carbon stable isotope values in silver carp (<i>Hypophthalmichthys molitrix</i>) tissue.","authors":"Bridget Seghers, Stephanie K Archer, Abigail Host, Abigail Bockus, Angela R Stahl, Michael J Polito","doi":"10.1080/10256016.2024.2442364","DOIUrl":"10.1080/10256016.2024.2442364","url":null,"abstract":"<p><p>Invasive silver carp (<i>Hypophthalmichthys molitrix</i>) threaten Mississippi River basin ecosystems due to their ability to outcompete native species. Stable carbon (δ¹³C) and nitrogen (δ¹⁵N) isotope analysis has been used to study how silver carp impact native ecosystems, but lipids in fish tissues commonly bias their δ¹³C values. Chemical lipid extraction and mathematical equations that normalise δ¹³C values for lipid content can account for this bias, but have not been assessed for silver carp. We examined δ¹³C, δ¹⁵N, and C:N ratios before and after chemical lipid extraction using 2:1 chloroform:methanol in silver carp muscle and whole fish collected along the Mississippi River. We used linear and natural log models to estimate lipid-extracted δ¹³C values in silver carp muscle and whole fish samples based on their non-lipid-extracted δ¹³C values and elemental C:N ratios. Arithmetic models were evaluated for best fit, parsimony, and accuracy between mathematically normalised and chemically lipid-extracted δ¹³C values. Chemical lipid extraction increased silver carp δ¹³C values and decreased C:N ratio in muscle and whole fish, and increased δ¹⁵N values in whole fish but not fish muscle. While both linear and natural log models accurately estimated lipid extracted δ¹³C values, natural log models provided better fit and parsimony throughout a wide range of C:N ratios. These results confirmed the need to account for lipid effects on δ¹³C values in silver carp. Moreover, our study will allow researchers to conduct isotopic analysis without the added time and cost of chemical lipid extraction and facilitate the comparison of silver carp muscle and whole fish isotopic values across studies.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"181-197"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143065614","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}

{"title":"Dragonflies (Odonata) as bioindicators of radioactivity.","authors":"Andrea Vukoja, Tomislav Bogdanović, Davor Rašeta, Nora Miljanić, Iva Ivanišić Risek, Krunoslav Ilić, Ivan Pavičić, Ana Marija Marjanović Čermak, Branko Petrinec","doi":"10.1080/10256016.2024.2425070","DOIUrl":"10.1080/10256016.2024.2425070","url":null,"abstract":"<p><p>Bioindicators are living organisms that are successfully used for monitoring changes in the environmental health due to natural and/or anthropogenic influences. Dragonflies (Odonata) are considered to be good indicators of water quality; however, research on dragonflies as potential indicators of radioactivity is scarce. The aim of this study was to evaluate dragonflies as potential biological indicators of ionising radiation in nature by measuring ¹³⁷Cs activity concentrations in the dragonfly and river water samples. Altogether, 11 collective samples of dragonflies were collected from the bank of the Mura-Drava-Danube Biosphere Reserve, in the area of Virovitica-Podravina County. Following the initial sample preparation, the gamma spectrometry technique, employing an ORTEC HPGe detector system, was utilised to determine the activity concentrations of ¹³⁷Cs. The results show that the activity concentrations of ¹³⁷Cs in the river water were in the range from 4 to 13 Bq/m³. The results of dragonfly samples showed that ¹³⁷Cs was in the range from 1.7 to 3 Bq/kg. This was more than a hundred times higher than in the river Drava water. According to the obtained results, we conclude that dragonflies could be used as potential bioindicators of radioactivity.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"230-238"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142687020","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}

{"title":"Estimation of natural radioactivity and radiological hazards in river sediments (sand) used as building materials in South Africa.","authors":"Olusegun Yemi Omogunloye, Naven Chetty, Abiola Olawale Ilori","doi":"10.1080/10256016.2025.2455101","DOIUrl":"10.1080/10256016.2025.2455101","url":null,"abstract":"<p><p>This study presents an investigation into the natural radioactivity levels of ²³⁸U, ²³²Th, and ⁴⁰K using a thallium-doped sodium iodide (NaI(TI)) detector and associated radiological hazards in river sediments, specifically sand, which serves as a crucial building material in the KwaZulu-Natal Province of South Africa. The assessment aims to provide insights into potential radiological risks posed by the utilization of these sediments in construction activities. The mean activity concentrations of ²³⁸U, ²³²Th, and ⁴⁰K are 145.33, 38.67, and 362.67 Bq kg^-1, 124.64, 60.60, and 353.00 Bq kg^-1, 144.00, 48.80, and 371.00 Bq kg^-1, 92.95, 52.00, and 368.75 Bq kg^-1, 133.55, 45.60, and 324.40 Bq kg^-1, and 109.50, 52.50, 381.50 Bq kg^-1 for Umngeni River, Umsunduzi River, Ashburton Sarupen, Hammersdale, Kwanjobekazi, and Cator Ridge, respectively. The obtained values of the radiological hazard indices (radium equivalent activity, external hazard index, internal hazard index, and activity utilization index) were below the world average values reported for building materials. Therefore, the studied samples are radiologically safe for use as building materials in the study area because they may not constitute any severe radiological hazards to residents.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"214-229"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143052349","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}

{"title":"Stable H-O and radiogenic Sr isotopic ratios in bottled water in South Korea.","authors":"Hyo Min Lee, Hui Je Jo, Hanna Choi, Hyeongseok Song, MinJung Park, Myoung Jung Kim, Seonhee Kim","doi":"10.1080/10256016.2024.2430229","DOIUrl":"10.1080/10256016.2024.2430229","url":null,"abstract":"<p><p>Stable H-O and radiogenic Sr isotopic compositions of bottled water in South Korea were investigated to trace water origins and to elucidate hydrogeochemical water-rock interactions within aquifers. Eighty-one bottled water samples were collected across the country. The δD and δ¹⁸O values, and ⁸⁷Sr/⁸⁶Sr ratios and Sr contents of groundwater-sourced bottled water samples were in the ranges of -68 to -40 ‰, -10 to -7 ‰, 0.7050-0.8112, and 14-400 μg L^-1, respectively. The corresponding ranges for desalinated deep-ocean water samples were -1.2 to 1.6 ‰, -0.35 to 0.10 ‰, 0.7078-0.7092, and 12-407 μg L^-1, respectively. Isotopic compositions indicate spatial variations in stable isotopic signatures with geographical location, while Sr isotopic ratios are correlated with the geological characteristics of water sources. Oxygen isotopic compositions of bottled water show a negative correlation with latitude, while Sr isotopic ratios vary with aquifer geology. The integration of stable and radiogenic isotopic compositions improves our understanding of water-rock interactions, enabling accurate authentication of water sources.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"167-180"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143005377","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}

{"title":"Deuterium in drinking water and its effects on cancer and longevity.","authors":"Meiling Zhong, Jiaxue Wang, Ouyi Zhao, Qiuyi Li","doi":"10.1080/10256016.2024.2424454","DOIUrl":"10.1080/10256016.2024.2424454","url":null,"abstract":"<p><p>This study investigates the spatial distribution of longevity levels, deuterium in drinking water, and cancer incidence rates, and further examines the impact of deuterium in drinking water on longevity and cancer incidence. Methods such as correlation coefficients and Kriging spatial interpolation were employed to uncover the characteristics of spatial distribution and identify correlations. Findings reveal that regions with higher longevity levels are mostly located on the eastern side of the Hu Huanyong Line (Heihe-Tengchong Line). Deuterium in drinking water decreases from low latitude, low elevation, and coastal areas to high latitude, high elevation, and inland regions. Notably, there is a positive correlation between deuterium content in drinking water and longevity levels, indicating that higher deuterium content is associated with increased longevity. Additionally, counties with lower deuterium content in drinking water show a reduced incidence of cancer cases.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"152-166"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142647759","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}

{"title":"Application of <i>Tradescantia</i>-based test systems for the assessment of genotoxic effects of environmental radioactivity of undisturbed mountain soils (Aragats Massif, Armenia).","authors":"Olga Belyaeva, Rimma Avalyan, Anzhela Sargsyan, Anahit Atoyants, Evelina Agadjanyan, Rouben Aroutiounian","doi":"10.1080/10256016.2025.2451842","DOIUrl":"10.1080/10256016.2025.2451842","url":null,"abstract":"<p><p>Plant test systems are a sensitive way to detect the genetic effects of various contaminants in environmental compartments: water, soil and sediments. Biotesting of the genotoxicity of soil samples with various activity concentrations of naturally occurring (²²⁶Ra, ²³²Th, ⁴⁰K) and artificial (¹³⁷Cs) radionuclides in soil, from the territory of the Aragats Massif (Armenia) was carried out with the application of the <i>Tradescantia</i> micronucleus (Trad-MСN) and stamen hair mutation (Trad-SHM) bioassays of <i>Tradescantia</i> (clone 02) model test-object in the soil - plant system. Undisturbed soil sampling was performed in the southern slopes of the Aragats Massif, from different altitudes (from 1000 to 3200 m above sea level). The soils of the Aragats Massif exhibited a background level of naturally occurring materials (NORM) activity. The highest variability was indicated for ⁴⁰K. The activity concentration of ¹³⁷Cs in soils exhibited a naturally increased as the altitude increased. <i>Tradescantia</i> (clone 02) was grown on the undisturbed soils in the greenhouse. To determine the level of genotoxicity of the studied soil samples, the <i>Tradescantia</i>-based Trad-MCN and Trad-SHM tests were applied. The activity concentrations of NORM and artificial ¹³⁷Cs in soil and phytomass were determined using an HPGe detector-based gamma spectrometer (Canberra). <i>Tradescantia</i> (clone 02) accumulated mainly ⁴⁰K, accumulation of ²²⁶Ra observed in one soil sample. In the areas with elevated activity of NORM, levels of genotoxicity were significantly higher compared to the control soil sample with the low rate of spontaneous mutation frequency. The positive correlation between genetic damages of <i>Tradescantia</i> (MCN and SSH) and contents of ⁴⁰K and ²²⁶Ra in soils was revealed. The obtained results indicated the possibility of using Trad-MCN and Trad-SHM tests of <i>Tradescantia</i> (clone 02) for biotesting of background radioactivity in natural areas.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"198-213"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143005369","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}

{"title":"Co-application of glucose and phosphorus with recalcitrant high-carbon soil amendments improves N retention in a reclaimed soil: a long-term incubation study.","authors":"Zhijie Li, Rüdiger Reichel, Holger Wissel, Kerui Zhao, Nicolas Brüggemann","doi":"10.1080/10256016.2024.2423797","DOIUrl":"10.1080/10256016.2024.2423797","url":null,"abstract":"<p><p>Incorporation of soil amendments with high organic carbon content (HCA) can reduce losses of mineral nitrogen (N) from agricultural soils. The magnitude of N immobilization and remobilization is strongly controlled by the availability of carbon (C) and phosphorus (P). However, the exact mechanisms and interactions between C, N, and P availability are poorly understood. An eight-month incubation experiment was conducted on recultivated mine soil with low organic C, mineral N and P background concentrations to investigate the effects of HCA in combination with ¹³C-labelled glucose and mineral P fertilization on greenhouse gas emissions, soil nutrient status (dissolved organic C (DOC), nitrate (NO₃^-), extractable P), and microbial biomass growth. The experiment had a factorial design of one N level × two P levels × six C treatments (control, wheat straw, poplar sawdust, glucose, and combinations of wheat straw or sawdust with glucose). The HCA increased the cumulative CO₂ and CH₄ emissions but decreased N₂O emission, except for wheat straw. Addition of ¹³C-labelled glucose decreased the cumulative CH₄ emission by 59 and 85 % in the sawdust and sawdust + P treatment, respectively. Glucose application reduced the NO₃^- content in the HCA-amended soil by 26-64 %, while P fertilizer further decreased the NO₃^- content in the wheat straw and sawdust treatments by 20 and 24 %, respectively. Both HCA and glucose treatments promoted microbial biomass growth and reduced the soil mineral N content. The δ¹³C of microbial biomass (δ¹³C_MB) showed an increasing trend during the whole experiment, although ¹³C-labelled glucose was added only once at the beginning of the experiment. Addition of HCA decreased δ¹³C_MB, while P addition had the opposite effect. In conclusion, adding a readily available C source to HCA may increase the efficacy of retaining N in post-harvest soils, particularly of more recalcitrant types of HCA like sawdust.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"133-151"},"PeriodicalIF":1.1,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716098","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}

{"title":"Temporal characteristics of stable isotopes of oxygen (¹⁸O) and hydrogen (²H) at Senai, Johor, Malaysia.","authors":"Ninu Krishnan Modon Valappil, Yusri Yusup, Punyawi Jamjareegulgarn, Vijith Hamza","doi":"10.1080/10256016.2025.2492861","DOIUrl":"https://doi.org/10.1080/10256016.2025.2492861","url":null,"abstract":"<p><p>The present research aimed to characterize the temporal variation in the compositions of stable isotopes (<math><mrow><mi>δ</mi><mi>D</mi></mrow></math> and δ¹⁸O) at Senai in Johor, Malaysia. Long-term monthly data collected from Malaysian Nuclear Agency and the International Atomic Energy Agency (IAEA)/World Meteorological Organisation (WMO), Global Network for Isotopic Precipitation (GNIP) for a period of 2013-2021 were considered. The isotopic composition was evaluated monthly, seasonally and annually by taking into account the amount of precipitation (rainfall), temperature and relative humidity. The δD and δ¹⁸O values showed enriched values in the months of January, February and March and depleted values in November and December, respectively. Considering the seasonal characteristics at Senai site, it was found that the precipitation during the northeast monsoon (NEM) showed a slight enrichment in isotopic compositions as compared to the rainfall during the southwest monsoon (SWM). The primary sources of moisture were identified through the modelling of HYSPLIT-based backward trajectories, which indicated that the Pacific Ocean, the South China Sea (NEM season) and the Indian Ocean (SWM season) play significant roles as moisture contributors. Additionally, landmasses in the western Pacific and northern continental regions also supplied moisture that influenced the composition of stable isotopes in precipitation in Senai. The findings of this study contribute to a deeper comprehension of the hydrometeorological processes at play in the study area, which affect the fluctuations of compositions of stable isotopes in precipitation within the region. Further, a more comprehensive investigation of δ¹⁸O and δD isotopes is deemed crucial as essential climate response variables. This research will enhance our understanding of the hydrological cycle and improve predictions regarding the impacts of future climate change and alterations in ecosystems.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"1-22"},"PeriodicalIF":1.1,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143971658","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}

{"title":"Radon measurements in soils and building materials of Kashmir.","authors":"Sobia Riaz, Misbah Javed, Muhammad Rashad Khan, Muhammad Khawaja Rafique Mir, Carlo Sabbarese","doi":"10.1080/10256016.2025.2492102","DOIUrl":"https://doi.org/10.1080/10256016.2025.2492102","url":null,"abstract":"<p><p>In this study, ²²²Rn and ²²⁶Ra activity concentration, annual effective dose and radon exhalation rate were measured in samples of building materials and soils collected from the city of Rawalakot in Azad Kashmir. The samples were measured using the passive technique with CR-39 detectors. ²²²Rn activity concentration in sand, brick, blocks, soil and tiles varies from 259 to 401, 230-464, 273-421, 256-523 and 267-438 Bq/m³, respectively. The annual effective dose for people living in built environments with sand, bricks, blocks, soil and tiles ranges from 4.0-6.32, 3.62-7.31, 4.30-6.63, 4.03-8.24 and 3.36-6.90 mSv/y, respectively, and the mean values are 5.16, 5.31, 5.31, 5.56 and 5.26 mSv/y. The radon activity concentration results were compared with the limits set by the Health Protection Agency UK (200 Bq/m³), US-EPA (148 Bq/m³) and WHO (100 Bq/m³). Some samples exceeded these recommended limits, indicating a potential health risk.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"1-10"},"PeriodicalIF":1.1,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144010205","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}