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Kang DJ, Tazoe H. Impacts of soil type and drought stress on growth and cesium accumulation in Napier grass. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:235. [PMID: 38849625 DOI: 10.1007/s10653-024-02023-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 05/02/2024] [Indexed: 06/09/2024]
Abstract
In our previous study, the decontamination efficiency of cesium-137 (137Cs) by Napier grass (Pennisetum purpureum Schum.) in the field was shown to be variable and often influenced by natural environmental factors. To elucidate the factors influencing this variable 137Cs-decontamination efficiency, we investigated the influences of soil type and drought stress on Cs accumulation using cesium-133 (133Cs) in Napier grass grown in plastic containers. The experiment was performed using two soil types (Soil A and B) and three different soil moisture conditions: well-watered control (CL), slight drought stress (SD), and moderate drought stress (MD). Overall, our results indicate that soil type and drought have a significant impact on plant growth and 133Cs accumulation in Napier grass. Plant height (PH), tiller number (TN), leaf width (Wleaf), and dry matter weight of aboveground parts (DWabove) and root parts (DWroot) in Soil B were greater than those in Soil A. Drought stress negatively affected chlorophyll fluorescence parameters (maximal quantum efficiency of photosystem (PS) II photochemistry and potential activity of PS II), PH, TN, Wleaf, DWabove, DWroot, and total 133Cs content (TCs), but it had a positive effect on 133Cs concentration. The 133Cs concentration in the aboveground parts (Csabove) was increased by MD approximately 1.62-fold in Soil A and 1.11-fold in Soil B compared to each CL counterpart. The TCs in the aboveground parts (TCsabove) decreased due to drought by approximately 19.9%-39.0% in Soil A and 49.9%-62.7% in Soil B; however, there was no significant effect on TCsabove due to soil type. The results of this study indicate that soil moisture is a key factor in maintaining Napier grass 137Cs-decontamination efficiency.
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Affiliation(s)
- Dong-Jin Kang
- Teaching and Research Center for Bio-coexistence, Faculty of Agriculture and Life Science, Hirosaki University, Gosyogawara, 037-0202, Japan.
| | - Hirofumi Tazoe
- Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, 036-8564, Japan
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Komínková D, Vacula J, Záhorová V, Rulík P, Škrkal J, Pecharová E, Borecký Z, Šestáková K, Stádníková D, Finkous P, Finkous M, Hofmanová Kautská V, Doskočilová V, Pilátová H. Aggregated transfer factors of fresh Cs and Sr pollution to various vegetables from six common European soils - mesocosm experiment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 345:118900. [PMID: 37696187 DOI: 10.1016/j.jenvman.2023.118900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/09/2023] [Accepted: 08/27/2023] [Indexed: 09/13/2023]
Abstract
Aggregated transfer factors (Tag) were identified for three common vegetables grown in six common European soils freshly contaminated by 134Cs and 85Sr. The experiment was carried out as a mesocosm experiment in pots with an average soil weight of 15.8 kg per pot. The vegetables were grown one after the other during one vegetation season, in the order lettuce, onion, and radish (the order usually applied in private gardens and small farms). Despite the fact that lettuce was grown in the most contaminated soil, it had the lowest Tag (in m2/kg) of both radionuclides (3.6E-4 for Cs, 2.0E-2 for Sr), while onion had 6.4E-3 for Cs and 3.2E-2 for Sr and radish had 1.9E-3 for Cs and 8.1E-2 for Sr. Potassium supply did not show any statistically significant effect on Cs Tag; there was a significant impact of K on the decrease in Sr Tag. The experiments indicated that Tag is more affected by plant species than by soil type; therefore, selection of plants with a lower capacity to uptake radionuclides may be an important measure to reduce food contamination and thus minimize the committed effective dose.
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Affiliation(s)
- Dana Komínková
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Czech Republic.
| | - Jaroslav Vacula
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Czech Republic.
| | - Věra Záhorová
- National Radiation Protection Institute (SÚRO), Bartoškova 28, 140 00 Prague 4, Czech Republic.
| | - Petr Rulík
- National Radiation Protection Institute (SÚRO), Bartoškova 28, 140 00 Prague 4, Czech Republic.
| | - Jan Škrkal
- National Radiation Protection Institute (SÚRO), Bartoškova 28, 140 00 Prague 4, Czech Republic.
| | - Emilie Pecharová
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Czech Republic.
| | - Zdeněk Borecký
- National Radiation Protection Institute (SÚRO), Bartoškova 28, 140 00 Prague 4, Czech Republic.
| | - Klára Šestáková
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Czech Republic.
| | - Dita Stádníková
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Czech Republic.
| | - Petr Finkous
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Czech Republic.
| | - Miroslav Finkous
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Czech Republic.
| | - Věra Hofmanová Kautská
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Czech Republic.
| | - Věra Doskočilová
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Kamýcká 129, 165 00 Prague 6, Czech Republic.
| | - Helena Pilátová
- National Radiation Protection Institute (SÚRO), Bartoškova 28, 140 00 Prague 4, Czech Republic.
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Purkis JM, Bardos RP, Graham J, Cundy AB. Developing field-scale, gentle remediation options for nuclear sites contaminated with 137Cs and 90Sr: The role of Nature-Based Solutions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 308:114620. [PMID: 35149404 DOI: 10.1016/j.jenvman.2022.114620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/29/2021] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
The remediation of contaminated land using plants, bacteria and fungi has been widely examined, especially in laboratory or greenhouse systems where conditions are precisely controlled. However, in real systems at the field scale conditions are much more variable and often produce different outcomes, which must be fully examined if 'gentle remediation options', or GROs, are to be more widely implemented, and their associated benefits (beyond risk-management) realized. These secondary benefits can be significant if GROs are applied correctly, and can include significant biodiversity enhancements. Here, we assess recent developments in the field-scale application of GROs for the remediation of two model contaminants for nuclear site remediation (90Sr and 137Cs), their risk management efficiency, directions for future application and research, and barriers to their further implementation at scale. We also discuss how wider benefits, such as biodiversity enhancements, water filtration etc. can be maximized at the field-scale by intelligent application of these approaches.
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Affiliation(s)
- Jamie M Purkis
- School of Ocean and Earth Science, University of Southampton, National Oceanography Centre (Southampton), European Way, Southampton, SO14 3ZH, United Kingdom
| | - R Paul Bardos
- Centre for Aquatic Environments, University of Brighton, Brighton, BN2 4AT, UK; r3 Environmental Technology Ltd., Reading, United Kingdom
| | - James Graham
- National Nuclear Laboratory, Sellafield, Cumbria, CA20 1PG, UK
| | - Andrew B Cundy
- School of Ocean and Earth Science, University of Southampton, National Oceanography Centre (Southampton), European Way, Southampton, SO14 3ZH, United Kingdom.
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Kang DJ, Tazoe H, Yamada M. Effects of environmental conditions, low-level potassium, ethylenediaminetetraacetic acid, or combination treatment on radiocesium-137 decontamination in Napier grass. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:49602-49612. [PMID: 33939095 DOI: 10.1007/s11356-021-14177-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
Phytoextraction is widely used to remove environmental pollutants such as heavy metals or radionuclides from soil. It is important to understand how to enhance the accumulation of contaminants by plants. Previously, we found that Napier grass (Pennisetum purpureum Schum.) has the potential to effectively remove Cs (133Cs and 137Cs). In order to enhance the remediation efficiency of Napier grass, we evaluated the effects of low-level K (K), ethylenediaminetetraacetic acid (EDTA), or the combination of low-level K and EDTA (K+EDTA). We also examined the differences in 137Cs decontamination between two cropping years (2018 and 2019). Overall, there were no prominent effects from the K, EDTA, or K+EDTA treatments on plant growth (plant height, tiller number), aboveground biomass, 137Cs concentration, and 137Cs removal ratio (CR) in 2 years. However, the aboveground biomass (P < 0.001), 137Cs concentration (P < 0.001 in 2019 only), and CR (P < 0.001) in plants grown in the first growing period were significantly higher than in plants grown in the second growing period in both years. The mean 137Cs concentration (P < 0.001) and total CR (P < 0.001) per year was significantly greater in 2019 than in 2018. The precipitation amount during the cultivation period in 2019 (1197 mm) was 1.8-fold higher than in 2018 (655 mm). In this study, the K, EDTA, and K+EDTA treatments had less effect plant growth than the natural environmental conditions. To enhance remediation efficiency, soil moisture is one important factor to produce more aboveground biomass to achieve high CR in Napier grass.
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Affiliation(s)
- Dong-Jin Kang
- Teaching and Research Center for Bio-coexistence, Faculty of Agriculture and Life Science, Hirosaki University, Goshogawara, 037-0202, Japan.
| | - Hirofumi Tazoe
- Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, 036-8564, Japan
| | - Masatoshi Yamada
- Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, 036-8564, Japan
- Marine Ecology Research Institute, Chiba, 299-5105, Japan
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Takeda A, Tsukada H, Unno Y, Takaku Y, Hisamatsu S. Effects of organic amendments on the natural attenuation of radiocesium transferability in grassland soils with high potassium fertility. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2020; 217:106207. [PMID: 32217239 DOI: 10.1016/j.jenvrad.2020.106207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/14/2020] [Accepted: 02/14/2020] [Indexed: 06/10/2023]
Abstract
Organic amendments affect the behavior of radiocesium in soil-plant systems in a complex way; they can inhibit radiocesium fixation by clay minerals by blocking selective sorption sites, whereas K supplied to the soil solution by amendments can reduce Cs uptake by plant roots. Here, we investigated the influence of inorganic and organic amendments on the transferability of radiocesium from soil to grass seedling in a humus-rich Andosol with high exchangeable K content. Soil samples were spiked with a137Cs tracer, treated with N, N-P-K, compost (cattle manure using rice straw), or no amendment (control soil), and subjected to repeated two-week wetting and air-drying treatments for one year in an artificial climate chamber. Small-scale cultivations of orchard grass were performed four times during the experimental period to assess temporal changes of availability of 137Cs in the soils. The 137Cs transfer factor (TF), defined as the 137Cs concentration in the plant divided by that in the soil, decreased with time in the control soil. The soil treated with compost showed higher TFs than the control soil in each cultivation and a slower attenuation of 137Cs transferability. By comparing the extractability of 137Cs, NH4+, and K+ with the observed TFs, we show that K released from the compost was not effective in reducing root uptake of 137Cs, but enhanced 137Cs desorption from the soil under K-rich conditions. This result suggests that organic amendment is ineffective in reducing root uptake of radiocesium under high exchangeable K concentrations, and may instead enhance the long-term availability of radiocesium in soils.
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Affiliation(s)
- Akira Takeda
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho-mura, Kamikita-gun, Aomori, 039-3212, Japan.
| | - Hirofumi Tsukada
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho-mura, Kamikita-gun, Aomori, 039-3212, Japan
| | - Yusuke Unno
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho-mura, Kamikita-gun, Aomori, 039-3212, Japan
| | - Yuichi Takaku
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho-mura, Kamikita-gun, Aomori, 039-3212, Japan
| | - Shun'ichi Hisamatsu
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho-mura, Kamikita-gun, Aomori, 039-3212, Japan
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Kavoosi Kalashami M, Sadeghpour H, Allahyari MS, Surujlal J, Ghorbandoust M. Evaluation of Urban Consumer Willingness to Pay for Organic Leafy Vegetables. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/19315260.2016.1230166] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Mohammad Kavoosi Kalashami
- Department of Agricultural Economics, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran
| | - Hassan Sadeghpour
- Department of Accounting, Rasht Branch, Islamic Azad University, Rasht, Iran
| | | | - Jhalukpreya Surujlal
- North-West University (Vaal Triangle Campus), Faculty of Economic Sciences and IT, Johannesburg, South Africa
| | - Mortaza Ghorbandoust
- Department of Agricultural Management, Rasht Branch, Islamic Azad University, Rasht, Iran
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